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Merge branch 'akpm' (fixes from Andrew)
[linux-2.6/cjktty.git] / drivers / hwmon / lm93.c
blobb40f34cdb3caf34d9a72d3c7e90c334740c5c229
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 <khali@linux-fr.org>
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 device *hwmon_dev;
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, "lm93: read byte data failed, "
822 "address 0x%02x.\n", reg);
823 mdelay(i + 3);
824 }
825
826 }
827
828 /* <TODO> what to return in case of error? */
829 dev_err(&client->dev, "lm93: All read byte retries failed!!\n");
830 return 0;
831 }
832
833 static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
834 {
835 int result;
836
837 /* <TODO> how to handle write errors? */
838 result = i2c_smbus_write_byte_data(client, reg, value);
839
840 if (result < 0)
841 dev_warn(&client->dev, "lm93: write byte data failed, "
842 "0x%02x at address 0x%02x.\n", value, reg);
843
844 return result;
845 }
846
847 static u16 lm93_read_word(struct i2c_client *client, u8 reg)
848 {
849 int value, i;
850
851 /* retry in case of read errors */
852 for (i = 1; i <= MAX_RETRIES; i++) {
853 value = i2c_smbus_read_word_data(client, reg);
854 if (value >= 0) {
855 return value;
856 } else {
857 dev_warn(&client->dev, "lm93: read word data failed, "
858 "address 0x%02x.\n", reg);
859 mdelay(i + 3);
860 }
861
862 }
863
864 /* <TODO> what to return in case of error? */
865 dev_err(&client->dev, "lm93: All read word retries failed!!\n");
866 return 0;
867 }
868
869 static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
870 {
871 int result;
872
873 /* <TODO> how to handle write errors? */
874 result = i2c_smbus_write_word_data(client, reg, value);
875
876 if (result < 0)
877 dev_warn(&client->dev, "lm93: write word data failed, "
878 "0x%04x at address 0x%02x.\n", value, reg);
879
880 return result;
881 }
882
883 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
884
885 /*
886 * read block data into values, retry if not expected length
887 * fbn => index to lm93_block_read_cmds table
888 * (Fixed Block Number - section 14.5.2 of LM93 datasheet)
889 */
890 static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
891 {
892 int i, result = 0;
893
894 for (i = 1; i <= MAX_RETRIES; i++) {
895 result = i2c_smbus_read_block_data(client,
896 lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
897
898 if (result == lm93_block_read_cmds[fbn].len) {
899 break;
900 } else {
901 dev_warn(&client->dev, "lm93: block read data failed, "
902 "command 0x%02x.\n",
903 lm93_block_read_cmds[fbn].cmd);
904 mdelay(i + 3);
905 }
906 }
907
908 if (result == lm93_block_read_cmds[fbn].len) {
909 memcpy(values, lm93_block_buffer,
910 lm93_block_read_cmds[fbn].len);
911 } else {
912 /* <TODO> what to do in case of error? */
913 }
914 }
915
916 static struct lm93_data *lm93_update_device(struct device *dev)
917 {
918 struct i2c_client *client = to_i2c_client(dev);
919 struct lm93_data *data = i2c_get_clientdata(client);
920 const unsigned long interval = HZ + (HZ / 2);
921
922 mutex_lock(&data->update_lock);
923
924 if (time_after(jiffies, data->last_updated + interval) ||
925 !data->valid) {
926
927 data->update(data, client);
928 data->last_updated = jiffies;
929 data->valid = 1;
930 }
931
932 mutex_unlock(&data->update_lock);
933 return data;
934 }
935
936 /* update routine for data that has no corresponding SMBus block command */
937 static void lm93_update_client_common(struct lm93_data *data,
938 struct i2c_client *client)
939 {
940 int i;
941 u8 *ptr;
942
943 /* temp1 - temp4: limits */
944 for (i = 0; i < 4; i++) {
945 data->temp_lim[i].min =
946 lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
947 data->temp_lim[i].max =
948 lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
949 }
950
951 /* config register */
952 data->config = lm93_read_byte(client, LM93_REG_CONFIG);
953
954 /* vid1 - vid2: values */
955 for (i = 0; i < 2; i++)
956 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
957
958 /* prochot1 - prochot2: limits */
959 for (i = 0; i < 2; i++)
960 data->prochot_max[i] = lm93_read_byte(client,
961 LM93_REG_PROCHOT_MAX(i));
962
963 /* vccp1 - vccp2: VID relative limits */
964 for (i = 0; i < 2; i++)
965 data->vccp_limits[i] = lm93_read_byte(client,
966 LM93_REG_VCCP_LIMIT_OFF(i));
967
968 /* GPIO input state */
969 data->gpi = lm93_read_byte(client, LM93_REG_GPI);
970
971 /* #PROCHOT override state */
972 data->prochot_override = lm93_read_byte(client,
973 LM93_REG_PROCHOT_OVERRIDE);
974
975 /* #PROCHOT intervals */
976 data->prochot_interval = lm93_read_byte(client,
977 LM93_REG_PROCHOT_INTERVAL);
978
979 /* Fan Boost Temperature registers */
980 for (i = 0; i < 4; i++)
981 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
982
983 /* Fan Boost Temperature Hyst. registers */
984 data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
985 data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
986
987 /* Temperature Zone Min. PWM & Hysteresis registers */
988 data->auto_pwm_min_hyst[0] =
989 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
990 data->auto_pwm_min_hyst[1] =
991 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
992
993 /* #PROCHOT & #VRDHOT PWM Ramp Control register */
994 data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
995
996 /* misc setup registers */
997 data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
998 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
999 data->sf_tach_to_pwm = lm93_read_byte(client,
1000 LM93_REG_SF_TACH_TO_PWM);
1001
1002 /* write back alarm values to clear */
1003 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
1004 lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
1005 }
1006
1007 /* update routine which uses SMBus block data commands */
1008 static void lm93_update_client_full(struct lm93_data *data,
1009 struct i2c_client *client)
1010 {
1011 dev_dbg(&client->dev, "starting device update (block data enabled)\n");
1012
1013 /* in1 - in16: values & limits */
1014 lm93_read_block(client, 3, (u8 *)(data->block3));
1015 lm93_read_block(client, 7, (u8 *)(data->block7));
1016
1017 /* temp1 - temp4: values */
1018 lm93_read_block(client, 2, (u8 *)(data->block2));
1019
1020 /* prochot1 - prochot2: values */
1021 lm93_read_block(client, 4, (u8 *)(data->block4));
1022
1023 /* fan1 - fan4: values & limits */
1024 lm93_read_block(client, 5, (u8 *)(data->block5));
1025 lm93_read_block(client, 8, (u8 *)(data->block8));
1026
1027 /* pmw control registers */
1028 lm93_read_block(client, 9, (u8 *)(data->block9));
1029
1030 /* alarm values */
1031 lm93_read_block(client, 1, (u8 *)(&data->block1));
1032
1033 /* auto/pwm registers */
1034 lm93_read_block(client, 10, (u8 *)(&data->block10));
1035
1036 lm93_update_client_common(data, client);
1037 }
1038
1039 /* update routine which uses SMBus byte/word data commands only */
1040 static void lm93_update_client_min(struct lm93_data *data,
1041 struct i2c_client *client)
1042 {
1043 int i, j;
1044 u8 *ptr;
1045
1046 dev_dbg(&client->dev, "starting device update (block data disabled)\n");
1047
1048 /* in1 - in16: values & limits */
1049 for (i = 0; i < 16; i++) {
1050 data->block3[i] =
1051 lm93_read_byte(client, LM93_REG_IN(i));
1052 data->block7[i].min =
1053 lm93_read_byte(client, LM93_REG_IN_MIN(i));
1054 data->block7[i].max =
1055 lm93_read_byte(client, LM93_REG_IN_MAX(i));
1056 }
1057
1058 /* temp1 - temp4: values */
1059 for (i = 0; i < 4; i++) {
1060 data->block2[i] =
1061 lm93_read_byte(client, LM93_REG_TEMP(i));
1062 }
1063
1064 /* prochot1 - prochot2: values */
1065 for (i = 0; i < 2; i++) {
1066 data->block4[i].cur =
1067 lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
1068 data->block4[i].avg =
1069 lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
1070 }
1071
1072 /* fan1 - fan4: values & limits */
1073 for (i = 0; i < 4; i++) {
1074 data->block5[i] =
1075 lm93_read_word(client, LM93_REG_FAN(i));
1076 data->block8[i] =
1077 lm93_read_word(client, LM93_REG_FAN_MIN(i));
1078 }
1079
1080 /* pwm control registers */
1081 for (i = 0; i < 2; i++) {
1082 for (j = 0; j < 4; j++) {
1083 data->block9[i][j] =
1084 lm93_read_byte(client, LM93_REG_PWM_CTL(i, j));
1085 }
1086 }
1087
1088 /* alarm values */
1089 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1090 *(ptr + i) =
1091 lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
1092 }
1093
1094 /* auto/pwm (base temp) registers */
1095 for (i = 0; i < 4; i++) {
1096 data->block10.base[i] =
1097 lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
1098 }
1099
1100 /* auto/pwm (offset temp) registers */
1101 for (i = 0; i < 12; i++) {
1102 data->block10.offset[i] =
1103 lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
1104 }
1105
1106 lm93_update_client_common(data, client);
1107 }
1108
1109 /* following are the sysfs callback functions */
1110 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
1111 char *buf)
1112 {
1113 int nr = (to_sensor_dev_attr(attr))->index;
1114
1115 struct lm93_data *data = lm93_update_device(dev);
1116 return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
1117 }
1118
1119 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
1120 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
1121 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
1122 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
1123 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
1124 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
1125 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
1126 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
1127 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
1128 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
1129 static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
1130 static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
1131 static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
1132 static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
1133 static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
1134 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
1135
1136 static ssize_t show_in_min(struct device *dev,
1137 struct device_attribute *attr, char *buf)
1138 {
1139 int nr = (to_sensor_dev_attr(attr))->index;
1140 struct lm93_data *data = lm93_update_device(dev);
1141 int vccp = nr - 6;
1142 long rc, vid;
1143
1144 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1145 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1146 rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
1147 } else {
1148 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);
1149 }
1150 return sprintf(buf, "%ld\n", rc);
1151 }
1152
1153 static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
1154 const char *buf, size_t count)
1155 {
1156 int nr = (to_sensor_dev_attr(attr))->index;
1157 struct i2c_client *client = to_i2c_client(dev);
1158 struct lm93_data *data = i2c_get_clientdata(client);
1159 int vccp = nr - 6;
1160 long vid;
1161 unsigned long val;
1162 int err;
1163
1164 err = kstrtoul(buf, 10, &val);
1165 if (err)
1166 return err;
1167
1168 mutex_lock(&data->update_lock);
1169 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1170 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1171 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
1172 LM93_IN_REL_TO_REG(val, 0, vid);
1173 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1174 data->vccp_limits[vccp]);
1175 } else {
1176 data->block7[nr].min = LM93_IN_TO_REG(nr, val);
1177 lm93_write_byte(client, LM93_REG_IN_MIN(nr),
1178 data->block7[nr].min);
1179 }
1180 mutex_unlock(&data->update_lock);
1181 return count;
1182 }
1183
1184 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1185 show_in_min, store_in_min, 0);
1186 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1187 show_in_min, store_in_min, 1);
1188 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1189 show_in_min, store_in_min, 2);
1190 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1191 show_in_min, store_in_min, 3);
1192 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1193 show_in_min, store_in_min, 4);
1194 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1195 show_in_min, store_in_min, 5);
1196 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1197 show_in_min, store_in_min, 6);
1198 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1199 show_in_min, store_in_min, 7);
1200 static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
1201 show_in_min, store_in_min, 8);
1202 static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
1203 show_in_min, store_in_min, 9);
1204 static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
1205 show_in_min, store_in_min, 10);
1206 static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
1207 show_in_min, store_in_min, 11);
1208 static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
1209 show_in_min, store_in_min, 12);
1210 static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
1211 show_in_min, store_in_min, 13);
1212 static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
1213 show_in_min, store_in_min, 14);
1214 static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
1215 show_in_min, store_in_min, 15);
1216
1217 static ssize_t show_in_max(struct device *dev,
1218 struct device_attribute *attr, char *buf)
1219 {
1220 int nr = (to_sensor_dev_attr(attr))->index;
1221 struct lm93_data *data = lm93_update_device(dev);
1222 int vccp = nr - 6;
1223 long rc, vid;
1224
1225 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1226 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1227 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid);
1228 } else {
1229 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);
1230 }
1231 return sprintf(buf, "%ld\n", rc);
1232 }
1233
1234 static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
1235 const char *buf, size_t count)
1236 {
1237 int nr = (to_sensor_dev_attr(attr))->index;
1238 struct i2c_client *client = to_i2c_client(dev);
1239 struct lm93_data *data = i2c_get_clientdata(client);
1240 int vccp = nr - 6;
1241 long vid;
1242 unsigned long val;
1243 int err;
1244
1245 err = kstrtoul(buf, 10, &val);
1246 if (err)
1247 return err;
1248
1249 mutex_lock(&data->update_lock);
1250 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1251 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1252 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
1253 LM93_IN_REL_TO_REG(val, 1, vid);
1254 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1255 data->vccp_limits[vccp]);
1256 } else {
1257 data->block7[nr].max = LM93_IN_TO_REG(nr, val);
1258 lm93_write_byte(client, LM93_REG_IN_MAX(nr),
1259 data->block7[nr].max);
1260 }
1261 mutex_unlock(&data->update_lock);
1262 return count;
1263 }
1264
1265 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1266 show_in_max, store_in_max, 0);
1267 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1268 show_in_max, store_in_max, 1);
1269 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1270 show_in_max, store_in_max, 2);
1271 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1272 show_in_max, store_in_max, 3);
1273 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1274 show_in_max, store_in_max, 4);
1275 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1276 show_in_max, store_in_max, 5);
1277 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1278 show_in_max, store_in_max, 6);
1279 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1280 show_in_max, store_in_max, 7);
1281 static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
1282 show_in_max, store_in_max, 8);
1283 static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
1284 show_in_max, store_in_max, 9);
1285 static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
1286 show_in_max, store_in_max, 10);
1287 static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
1288 show_in_max, store_in_max, 11);
1289 static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
1290 show_in_max, store_in_max, 12);
1291 static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
1292 show_in_max, store_in_max, 13);
1293 static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
1294 show_in_max, store_in_max, 14);
1295 static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
1296 show_in_max, store_in_max, 15);
1297
1298 static ssize_t show_temp(struct device *dev,
1299 struct device_attribute *attr, char *buf)
1300 {
1301 int nr = (to_sensor_dev_attr(attr))->index;
1302 struct lm93_data *data = lm93_update_device(dev);
1303 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr]));
1304 }
1305
1306 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1307 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1308 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1309
1310 static ssize_t show_temp_min(struct device *dev,
1311 struct device_attribute *attr, char *buf)
1312 {
1313 int nr = (to_sensor_dev_attr(attr))->index;
1314 struct lm93_data *data = lm93_update_device(dev);
1315 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
1316 }
1317
1318 static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
1319 const char *buf, size_t count)
1320 {
1321 int nr = (to_sensor_dev_attr(attr))->index;
1322 struct i2c_client *client = to_i2c_client(dev);
1323 struct lm93_data *data = i2c_get_clientdata(client);
1324 long val;
1325 int err;
1326
1327 err = kstrtol(buf, 10, &val);
1328 if (err)
1329 return err;
1330
1331 mutex_lock(&data->update_lock);
1332 data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
1333 lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
1334 mutex_unlock(&data->update_lock);
1335 return count;
1336 }
1337
1338 static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
1339 show_temp_min, store_temp_min, 0);
1340 static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
1341 show_temp_min, store_temp_min, 1);
1342 static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
1343 show_temp_min, store_temp_min, 2);
1344
1345 static ssize_t show_temp_max(struct device *dev,
1346 struct device_attribute *attr, char *buf)
1347 {
1348 int nr = (to_sensor_dev_attr(attr))->index;
1349 struct lm93_data *data = lm93_update_device(dev);
1350 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
1351 }
1352
1353 static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
1354 const char *buf, size_t count)
1355 {
1356 int nr = (to_sensor_dev_attr(attr))->index;
1357 struct i2c_client *client = to_i2c_client(dev);
1358 struct lm93_data *data = i2c_get_clientdata(client);
1359 long val;
1360 int err;
1361
1362 err = kstrtol(buf, 10, &val);
1363 if (err)
1364 return err;
1365
1366 mutex_lock(&data->update_lock);
1367 data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
1368 lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
1369 mutex_unlock(&data->update_lock);
1370 return count;
1371 }
1372
1373 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
1374 show_temp_max, store_temp_max, 0);
1375 static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
1376 show_temp_max, store_temp_max, 1);
1377 static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
1378 show_temp_max, store_temp_max, 2);
1379
1380 static ssize_t show_temp_auto_base(struct device *dev,
1381 struct device_attribute *attr, char *buf)
1382 {
1383 int nr = (to_sensor_dev_attr(attr))->index;
1384 struct lm93_data *data = lm93_update_device(dev);
1385 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr]));
1386 }
1387
1388 static ssize_t store_temp_auto_base(struct device *dev,
1389 struct device_attribute *attr,
1390 const char *buf, size_t count)
1391 {
1392 int nr = (to_sensor_dev_attr(attr))->index;
1393 struct i2c_client *client = to_i2c_client(dev);
1394 struct lm93_data *data = i2c_get_clientdata(client);
1395 long val;
1396 int err;
1397
1398 err = kstrtol(buf, 10, &val);
1399 if (err)
1400 return err;
1401
1402 mutex_lock(&data->update_lock);
1403 data->block10.base[nr] = LM93_TEMP_TO_REG(val);
1404 lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
1405 mutex_unlock(&data->update_lock);
1406 return count;
1407 }
1408
1409 static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
1410 show_temp_auto_base, store_temp_auto_base, 0);
1411 static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
1412 show_temp_auto_base, store_temp_auto_base, 1);
1413 static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
1414 show_temp_auto_base, store_temp_auto_base, 2);
1415
1416 static ssize_t show_temp_auto_boost(struct device *dev,
1417 struct device_attribute *attr, char *buf)
1418 {
1419 int nr = (to_sensor_dev_attr(attr))->index;
1420 struct lm93_data *data = lm93_update_device(dev);
1421 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr]));
1422 }
1423
1424 static ssize_t store_temp_auto_boost(struct device *dev,
1425 struct device_attribute *attr,
1426 const char *buf, size_t count)
1427 {
1428 int nr = (to_sensor_dev_attr(attr))->index;
1429 struct i2c_client *client = to_i2c_client(dev);
1430 struct lm93_data *data = i2c_get_clientdata(client);
1431 long val;
1432 int err;
1433
1434 err = kstrtol(buf, 10, &val);
1435 if (err)
1436 return err;
1437
1438 mutex_lock(&data->update_lock);
1439 data->boost[nr] = LM93_TEMP_TO_REG(val);
1440 lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
1441 mutex_unlock(&data->update_lock);
1442 return count;
1443 }
1444
1445 static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
1446 show_temp_auto_boost, store_temp_auto_boost, 0);
1447 static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
1448 show_temp_auto_boost, store_temp_auto_boost, 1);
1449 static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
1450 show_temp_auto_boost, store_temp_auto_boost, 2);
1451
1452 static ssize_t show_temp_auto_boost_hyst(struct device *dev,
1453 struct device_attribute *attr,
1454 char *buf)
1455 {
1456 int nr = (to_sensor_dev_attr(attr))->index;
1457 struct lm93_data *data = lm93_update_device(dev);
1458 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1459 return sprintf(buf, "%d\n",
1460 LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
1461 }
1462
1463 static ssize_t store_temp_auto_boost_hyst(struct device *dev,
1464 struct device_attribute *attr,
1465 const char *buf, size_t count)
1466 {
1467 int nr = (to_sensor_dev_attr(attr))->index;
1468 struct i2c_client *client = to_i2c_client(dev);
1469 struct lm93_data *data = i2c_get_clientdata(client);
1470 unsigned long val;
1471 int err;
1472
1473 err = kstrtoul(buf, 10, &val);
1474 if (err)
1475 return err;
1476
1477 mutex_lock(&data->update_lock);
1478 /* force 0.5C/bit mode */
1479 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1480 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1481 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1482 data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
1483 lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
1484 data->boost_hyst[nr/2]);
1485 mutex_unlock(&data->update_lock);
1486 return count;
1487 }
1488
1489 static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
1490 show_temp_auto_boost_hyst,
1491 store_temp_auto_boost_hyst, 0);
1492 static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
1493 show_temp_auto_boost_hyst,
1494 store_temp_auto_boost_hyst, 1);
1495 static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
1496 show_temp_auto_boost_hyst,
1497 store_temp_auto_boost_hyst, 2);
1498
1499 static ssize_t show_temp_auto_offset(struct device *dev,
1500 struct device_attribute *attr, char *buf)
1501 {
1502 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1503 int nr = s_attr->index;
1504 int ofs = s_attr->nr;
1505 struct lm93_data *data = lm93_update_device(dev);
1506 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1507 return sprintf(buf, "%d\n",
1508 LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
1509 nr, mode));
1510 }
1511
1512 static ssize_t store_temp_auto_offset(struct device *dev,
1513 struct device_attribute *attr,
1514 const char *buf, size_t count)
1515 {
1516 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1517 int nr = s_attr->index;
1518 int ofs = s_attr->nr;
1519 struct i2c_client *client = to_i2c_client(dev);
1520 struct lm93_data *data = i2c_get_clientdata(client);
1521 unsigned long val;
1522 int err;
1523
1524 err = kstrtoul(buf, 10, &val);
1525 if (err)
1526 return err;
1527
1528 mutex_lock(&data->update_lock);
1529 /* force 0.5C/bit mode */
1530 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1531 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1532 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1533 data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
1534 data->block10.offset[ofs], val, nr, 1);
1535 lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
1536 data->block10.offset[ofs]);
1537 mutex_unlock(&data->update_lock);
1538 return count;
1539 }
1540
1541 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
1542 show_temp_auto_offset, store_temp_auto_offset, 0, 0);
1543 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
1544 show_temp_auto_offset, store_temp_auto_offset, 1, 0);
1545 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
1546 show_temp_auto_offset, store_temp_auto_offset, 2, 0);
1547 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
1548 show_temp_auto_offset, store_temp_auto_offset, 3, 0);
1549 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
1550 show_temp_auto_offset, store_temp_auto_offset, 4, 0);
1551 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
1552 show_temp_auto_offset, store_temp_auto_offset, 5, 0);
1553 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
1554 show_temp_auto_offset, store_temp_auto_offset, 6, 0);
1555 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
1556 show_temp_auto_offset, store_temp_auto_offset, 7, 0);
1557 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
1558 show_temp_auto_offset, store_temp_auto_offset, 8, 0);
1559 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
1560 show_temp_auto_offset, store_temp_auto_offset, 9, 0);
1561 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
1562 show_temp_auto_offset, store_temp_auto_offset, 10, 0);
1563 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
1564 show_temp_auto_offset, store_temp_auto_offset, 11, 0);
1565 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
1566 show_temp_auto_offset, store_temp_auto_offset, 0, 1);
1567 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
1568 show_temp_auto_offset, store_temp_auto_offset, 1, 1);
1569 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
1570 show_temp_auto_offset, store_temp_auto_offset, 2, 1);
1571 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
1572 show_temp_auto_offset, store_temp_auto_offset, 3, 1);
1573 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
1574 show_temp_auto_offset, store_temp_auto_offset, 4, 1);
1575 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
1576 show_temp_auto_offset, store_temp_auto_offset, 5, 1);
1577 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
1578 show_temp_auto_offset, store_temp_auto_offset, 6, 1);
1579 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
1580 show_temp_auto_offset, store_temp_auto_offset, 7, 1);
1581 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
1582 show_temp_auto_offset, store_temp_auto_offset, 8, 1);
1583 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
1584 show_temp_auto_offset, store_temp_auto_offset, 9, 1);
1585 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
1586 show_temp_auto_offset, store_temp_auto_offset, 10, 1);
1587 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
1588 show_temp_auto_offset, store_temp_auto_offset, 11, 1);
1589 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
1590 show_temp_auto_offset, store_temp_auto_offset, 0, 2);
1591 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
1592 show_temp_auto_offset, store_temp_auto_offset, 1, 2);
1593 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
1594 show_temp_auto_offset, store_temp_auto_offset, 2, 2);
1595 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
1596 show_temp_auto_offset, store_temp_auto_offset, 3, 2);
1597 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
1598 show_temp_auto_offset, store_temp_auto_offset, 4, 2);
1599 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
1600 show_temp_auto_offset, store_temp_auto_offset, 5, 2);
1601 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
1602 show_temp_auto_offset, store_temp_auto_offset, 6, 2);
1603 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
1604 show_temp_auto_offset, store_temp_auto_offset, 7, 2);
1605 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
1606 show_temp_auto_offset, store_temp_auto_offset, 8, 2);
1607 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
1608 show_temp_auto_offset, store_temp_auto_offset, 9, 2);
1609 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
1610 show_temp_auto_offset, store_temp_auto_offset, 10, 2);
1611 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
1612 show_temp_auto_offset, store_temp_auto_offset, 11, 2);
1613
1614 static ssize_t show_temp_auto_pwm_min(struct device *dev,
1615 struct device_attribute *attr, char *buf)
1616 {
1617 int nr = (to_sensor_dev_attr(attr))->index;
1618 u8 reg, ctl4;
1619 struct lm93_data *data = lm93_update_device(dev);
1620 reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
1621 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1622 return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
1623 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1624 }
1625
1626 static ssize_t store_temp_auto_pwm_min(struct device *dev,
1627 struct device_attribute *attr,
1628 const char *buf, size_t count)
1629 {
1630 int nr = (to_sensor_dev_attr(attr))->index;
1631 struct i2c_client *client = to_i2c_client(dev);
1632 struct lm93_data *data = i2c_get_clientdata(client);
1633 u8 reg, ctl4;
1634 unsigned long val;
1635 int err;
1636
1637 err = kstrtoul(buf, 10, &val);
1638 if (err)
1639 return err;
1640
1641 mutex_lock(&data->update_lock);
1642 reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
1643 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1644 reg = (reg & 0x0f) |
1645 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1646 LM93_PWM_MAP_LO_FREQ :
1647 LM93_PWM_MAP_HI_FREQ) << 4;
1648 data->auto_pwm_min_hyst[nr/2] = reg;
1649 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1650 mutex_unlock(&data->update_lock);
1651 return count;
1652 }
1653
1654 static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
1655 show_temp_auto_pwm_min,
1656 store_temp_auto_pwm_min, 0);
1657 static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
1658 show_temp_auto_pwm_min,
1659 store_temp_auto_pwm_min, 1);
1660 static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
1661 show_temp_auto_pwm_min,
1662 store_temp_auto_pwm_min, 2);
1663
1664 static ssize_t show_temp_auto_offset_hyst(struct device *dev,
1665 struct device_attribute *attr, char *buf)
1666 {
1667 int nr = (to_sensor_dev_attr(attr))->index;
1668 struct lm93_data *data = lm93_update_device(dev);
1669 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1670 return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG(
1671 data->auto_pwm_min_hyst[nr / 2], mode));
1672 }
1673
1674 static ssize_t store_temp_auto_offset_hyst(struct device *dev,
1675 struct device_attribute *attr,
1676 const char *buf, size_t count)
1677 {
1678 int nr = (to_sensor_dev_attr(attr))->index;
1679 struct i2c_client *client = to_i2c_client(dev);
1680 struct lm93_data *data = i2c_get_clientdata(client);
1681 u8 reg;
1682 unsigned long val;
1683 int err;
1684
1685 err = kstrtoul(buf, 10, &val);
1686 if (err)
1687 return err;
1688
1689 mutex_lock(&data->update_lock);
1690 /* force 0.5C/bit mode */
1691 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1692 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1693 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1694 reg = data->auto_pwm_min_hyst[nr/2];
1695 reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
1696 data->auto_pwm_min_hyst[nr/2] = reg;
1697 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1698 mutex_unlock(&data->update_lock);
1699 return count;
1700 }
1701
1702 static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
1703 show_temp_auto_offset_hyst,
1704 store_temp_auto_offset_hyst, 0);
1705 static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
1706 show_temp_auto_offset_hyst,
1707 store_temp_auto_offset_hyst, 1);
1708 static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
1709 show_temp_auto_offset_hyst,
1710 store_temp_auto_offset_hyst, 2);
1711
1712 static ssize_t show_fan_input(struct device *dev,
1713 struct device_attribute *attr, char *buf)
1714 {
1715 struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
1716 int nr = s_attr->index;
1717 struct lm93_data *data = lm93_update_device(dev);
1718
1719 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));
1720 }
1721
1722 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
1723 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
1724 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
1725 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
1726
1727 static ssize_t show_fan_min(struct device *dev,
1728 struct device_attribute *attr, char *buf)
1729 {
1730 int nr = (to_sensor_dev_attr(attr))->index;
1731 struct lm93_data *data = lm93_update_device(dev);
1732
1733 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));
1734 }
1735
1736 static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
1737 const char *buf, size_t count)
1738 {
1739 int nr = (to_sensor_dev_attr(attr))->index;
1740 struct i2c_client *client = to_i2c_client(dev);
1741 struct lm93_data *data = i2c_get_clientdata(client);
1742 unsigned long val;
1743 int err;
1744
1745 err = kstrtoul(buf, 10, &val);
1746 if (err)
1747 return err;
1748
1749 mutex_lock(&data->update_lock);
1750 data->block8[nr] = LM93_FAN_TO_REG(val);
1751 lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]);
1752 mutex_unlock(&data->update_lock);
1753 return count;
1754 }
1755
1756 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1757 show_fan_min, store_fan_min, 0);
1758 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1759 show_fan_min, store_fan_min, 1);
1760 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1761 show_fan_min, store_fan_min, 2);
1762 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1763 show_fan_min, store_fan_min, 3);
1764
1765 /*
1766 * some tedious bit-twiddling here to deal with the register format:
1767 *
1768 * data->sf_tach_to_pwm: (tach to pwm mapping bits)
1769 *
1770 * bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
1771 * T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
1772 *
1773 * data->sfc2: (enable bits)
1774 *
1775 * bit | 3 | 2 | 1 | 0
1776 * T4 T3 T2 T1
1777 */
1778
1779 static ssize_t show_fan_smart_tach(struct device *dev,
1780 struct device_attribute *attr, char *buf)
1781 {
1782 int nr = (to_sensor_dev_attr(attr))->index;
1783 struct lm93_data *data = lm93_update_device(dev);
1784 long rc = 0;
1785 int mapping;
1786
1787 /* extract the relevant mapping */
1788 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1789
1790 /* if there's a mapping and it's enabled */
1791 if (mapping && ((data->sfc2 >> nr) & 0x01))
1792 rc = mapping;
1793 return sprintf(buf, "%ld\n", rc);
1794 }
1795
1796 /*
1797 * helper function - must grab data->update_lock before calling
1798 * fan is 0-3, indicating fan1-fan4
1799 */
1800 static void lm93_write_fan_smart_tach(struct i2c_client *client,
1801 struct lm93_data *data, int fan, long value)
1802 {
1803 /* insert the new mapping and write it out */
1804 data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1805 data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
1806 data->sf_tach_to_pwm |= value << fan * 2;
1807 lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
1808
1809 /* insert the enable bit and write it out */
1810 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1811 if (value)
1812 data->sfc2 |= 1 << fan;
1813 else
1814 data->sfc2 &= ~(1 << fan);
1815 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1816 }
1817
1818 static ssize_t store_fan_smart_tach(struct device *dev,
1819 struct device_attribute *attr,
1820 const char *buf, size_t count)
1821 {
1822 int nr = (to_sensor_dev_attr(attr))->index;
1823 struct i2c_client *client = to_i2c_client(dev);
1824 struct lm93_data *data = i2c_get_clientdata(client);
1825 unsigned long val;
1826 int err;
1827
1828 err = kstrtoul(buf, 10, &val);
1829 if (err)
1830 return err;
1831
1832 mutex_lock(&data->update_lock);
1833 /* sanity test, ignore the write otherwise */
1834 if (val <= 2) {
1835 /* can't enable if pwm freq is 22.5KHz */
1836 if (val) {
1837 u8 ctl4 = lm93_read_byte(client,
1838 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));
1839 if ((ctl4 & 0x07) == 0)
1840 val = 0;
1841 }
1842 lm93_write_fan_smart_tach(client, data, nr, val);
1843 }
1844 mutex_unlock(&data->update_lock);
1845 return count;
1846 }
1847
1848 static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
1849 show_fan_smart_tach, store_fan_smart_tach, 0);
1850 static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
1851 show_fan_smart_tach, store_fan_smart_tach, 1);
1852 static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
1853 show_fan_smart_tach, store_fan_smart_tach, 2);
1854 static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
1855 show_fan_smart_tach, store_fan_smart_tach, 3);
1856
1857 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1858 char *buf)
1859 {
1860 int nr = (to_sensor_dev_attr(attr))->index;
1861 struct lm93_data *data = lm93_update_device(dev);
1862 u8 ctl2, ctl4;
1863 long rc;
1864
1865 ctl2 = data->block9[nr][LM93_PWM_CTL2];
1866 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1867 if (ctl2 & 0x01) /* show user commanded value if enabled */
1868 rc = data->pwm_override[nr];
1869 else /* show present h/w value if manual pwm disabled */
1870 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
1871 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
1872 return sprintf(buf, "%ld\n", rc);
1873 }
1874
1875 static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
1876 const char *buf, size_t count)
1877 {
1878 int nr = (to_sensor_dev_attr(attr))->index;
1879 struct i2c_client *client = to_i2c_client(dev);
1880 struct lm93_data *data = i2c_get_clientdata(client);
1881 u8 ctl2, ctl4;
1882 unsigned long val;
1883 int err;
1884
1885 err = kstrtoul(buf, 10, &val);
1886 if (err)
1887 return err;
1888
1889 mutex_lock(&data->update_lock);
1890 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1891 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1892 ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1893 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
1894 /* save user commanded value */
1895 data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
1896 (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ :
1897 LM93_PWM_MAP_HI_FREQ);
1898 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1899 mutex_unlock(&data->update_lock);
1900 return count;
1901 }
1902
1903 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1904 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1905
1906 static ssize_t show_pwm_enable(struct device *dev,
1907 struct device_attribute *attr, char *buf)
1908 {
1909 int nr = (to_sensor_dev_attr(attr))->index;
1910 struct lm93_data *data = lm93_update_device(dev);
1911 u8 ctl2;
1912 long rc;
1913
1914 ctl2 = data->block9[nr][LM93_PWM_CTL2];
1915 if (ctl2 & 0x01) /* manual override enabled ? */
1916 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1917 else
1918 rc = 2;
1919 return sprintf(buf, "%ld\n", rc);
1920 }
1921
1922 static ssize_t store_pwm_enable(struct device *dev,
1923 struct device_attribute *attr,
1924 const char *buf, size_t count)
1925 {
1926 int nr = (to_sensor_dev_attr(attr))->index;
1927 struct i2c_client *client = to_i2c_client(dev);
1928 struct lm93_data *data = i2c_get_clientdata(client);
1929 u8 ctl2;
1930 unsigned long val;
1931 int err;
1932
1933 err = kstrtoul(buf, 10, &val);
1934 if (err)
1935 return err;
1936
1937 mutex_lock(&data->update_lock);
1938 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1939
1940 switch (val) {
1941 case 0:
1942 ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1943 break;
1944 case 1:
1945 ctl2 |= 0x01; /* enable manual override */
1946 break;
1947 case 2:
1948 ctl2 &= ~0x01; /* disable manual override */
1949 break;
1950 default:
1951 mutex_unlock(&data->update_lock);
1952 return -EINVAL;
1953 }
1954
1955 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1956 mutex_unlock(&data->update_lock);
1957 return count;
1958 }
1959
1960 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1961 show_pwm_enable, store_pwm_enable, 0);
1962 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1963 show_pwm_enable, store_pwm_enable, 1);
1964
1965 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
1966 char *buf)
1967 {
1968 int nr = (to_sensor_dev_attr(attr))->index;
1969 struct lm93_data *data = lm93_update_device(dev);
1970 u8 ctl4;
1971
1972 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1973 return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));
1974 }
1975
1976 /*
1977 * helper function - must grab data->update_lock before calling
1978 * pwm is 0-1, indicating pwm1-pwm2
1979 * this disables smart tach for all tach channels bound to the given pwm
1980 */
1981 static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1982 struct lm93_data *data, int pwm)
1983 {
1984 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1985 int mask;
1986
1987 /* collapse the mapping into a mask of enable bits */
1988 mapping = (mapping >> pwm) & 0x55;
1989 mask = mapping & 0x01;
1990 mask |= (mapping & 0x04) >> 1;
1991 mask |= (mapping & 0x10) >> 2;
1992 mask |= (mapping & 0x40) >> 3;
1993
1994 /* disable smart tach according to the mask */
1995 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1996 data->sfc2 &= ~mask;
1997 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1998 }
1999
2000 static ssize_t store_pwm_freq(struct device *dev,
2001 struct device_attribute *attr,
2002 const char *buf, size_t count)
2003 {
2004 int nr = (to_sensor_dev_attr(attr))->index;
2005 struct i2c_client *client = to_i2c_client(dev);
2006 struct lm93_data *data = i2c_get_clientdata(client);
2007 u8 ctl4;
2008 unsigned long val;
2009 int err;
2010
2011 err = kstrtoul(buf, 10, &val);
2012 if (err)
2013 return err;
2014
2015 mutex_lock(&data->update_lock);
2016 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2017 ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
2018 data->block9[nr][LM93_PWM_CTL4] = ctl4;
2019 /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
2020 if (!ctl4)
2021 lm93_disable_fan_smart_tach(client, data, nr);
2022 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4);
2023 mutex_unlock(&data->update_lock);
2024 return count;
2025 }
2026
2027 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
2028 show_pwm_freq, store_pwm_freq, 0);
2029 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
2030 show_pwm_freq, store_pwm_freq, 1);
2031
2032 static ssize_t show_pwm_auto_channels(struct device *dev,
2033 struct device_attribute *attr, char *buf)
2034 {
2035 int nr = (to_sensor_dev_attr(attr))->index;
2036 struct lm93_data *data = lm93_update_device(dev);
2037 return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]);
2038 }
2039
2040 static ssize_t store_pwm_auto_channels(struct device *dev,
2041 struct device_attribute *attr,
2042 const char *buf, size_t count)
2043 {
2044 int nr = (to_sensor_dev_attr(attr))->index;
2045 struct i2c_client *client = to_i2c_client(dev);
2046 struct lm93_data *data = i2c_get_clientdata(client);
2047 unsigned long val;
2048 int err;
2049
2050 err = kstrtoul(buf, 10, &val);
2051 if (err)
2052 return err;
2053
2054 mutex_lock(&data->update_lock);
2055 data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255);
2056 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1),
2057 data->block9[nr][LM93_PWM_CTL1]);
2058 mutex_unlock(&data->update_lock);
2059 return count;
2060 }
2061
2062 static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
2063 show_pwm_auto_channels, store_pwm_auto_channels, 0);
2064 static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
2065 show_pwm_auto_channels, store_pwm_auto_channels, 1);
2066
2067 static ssize_t show_pwm_auto_spinup_min(struct device *dev,
2068 struct device_attribute *attr, char *buf)
2069 {
2070 int nr = (to_sensor_dev_attr(attr))->index;
2071 struct lm93_data *data = lm93_update_device(dev);
2072 u8 ctl3, ctl4;
2073
2074 ctl3 = data->block9[nr][LM93_PWM_CTL3];
2075 ctl4 = data->block9[nr][LM93_PWM_CTL4];
2076 return sprintf(buf, "%d\n",
2077 LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
2078 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
2079 }
2080
2081 static ssize_t store_pwm_auto_spinup_min(struct device *dev,
2082 struct device_attribute *attr,
2083 const char *buf, size_t count)
2084 {
2085 int nr = (to_sensor_dev_attr(attr))->index;
2086 struct i2c_client *client = to_i2c_client(dev);
2087 struct lm93_data *data = i2c_get_clientdata(client);
2088 u8 ctl3, ctl4;
2089 unsigned long val;
2090 int err;
2091
2092 err = kstrtoul(buf, 10, &val);
2093 if (err)
2094 return err;
2095
2096 mutex_lock(&data->update_lock);
2097 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2098 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2099 ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
2100 LM93_PWM_MAP_LO_FREQ :
2101 LM93_PWM_MAP_HI_FREQ);
2102 data->block9[nr][LM93_PWM_CTL3] = ctl3;
2103 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2104 mutex_unlock(&data->update_lock);
2105 return count;
2106 }
2107
2108 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
2109 show_pwm_auto_spinup_min,
2110 store_pwm_auto_spinup_min, 0);
2111 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
2112 show_pwm_auto_spinup_min,
2113 store_pwm_auto_spinup_min, 1);
2114
2115 static ssize_t show_pwm_auto_spinup_time(struct device *dev,
2116 struct device_attribute *attr, char *buf)
2117 {
2118 int nr = (to_sensor_dev_attr(attr))->index;
2119 struct lm93_data *data = lm93_update_device(dev);
2120 return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG(
2121 data->block9[nr][LM93_PWM_CTL3]));
2122 }
2123
2124 static ssize_t store_pwm_auto_spinup_time(struct device *dev,
2125 struct device_attribute *attr,
2126 const char *buf, size_t count)
2127 {
2128 int nr = (to_sensor_dev_attr(attr))->index;
2129 struct i2c_client *client = to_i2c_client(dev);
2130 struct lm93_data *data = i2c_get_clientdata(client);
2131 u8 ctl3;
2132 unsigned long val;
2133 int err;
2134
2135 err = kstrtoul(buf, 10, &val);
2136 if (err)
2137 return err;
2138
2139 mutex_lock(&data->update_lock);
2140 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2141 ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
2142 data->block9[nr][LM93_PWM_CTL3] = ctl3;
2143 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2144 mutex_unlock(&data->update_lock);
2145 return count;
2146 }
2147
2148 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
2149 show_pwm_auto_spinup_time,
2150 store_pwm_auto_spinup_time, 0);
2151 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
2152 show_pwm_auto_spinup_time,
2153 store_pwm_auto_spinup_time, 1);
2154
2155 static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
2156 struct device_attribute *attr, char *buf)
2157 {
2158 struct lm93_data *data = lm93_update_device(dev);
2159 return sprintf(buf, "%d\n",
2160 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
2161 }
2162
2163 static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
2164 struct device_attribute *attr,
2165 const char *buf, size_t count)
2166 {
2167 struct i2c_client *client = to_i2c_client(dev);
2168 struct lm93_data *data = i2c_get_clientdata(client);
2169 u8 ramp;
2170 unsigned long val;
2171 int err;
2172
2173 err = kstrtoul(buf, 10, &val);
2174 if (err)
2175 return err;
2176
2177 mutex_lock(&data->update_lock);
2178 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2179 ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
2180 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2181 mutex_unlock(&data->update_lock);
2182 return count;
2183 }
2184
2185 static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
2186 show_pwm_auto_prochot_ramp,
2187 store_pwm_auto_prochot_ramp);
2188
2189 static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
2190 struct device_attribute *attr, char *buf)
2191 {
2192 struct lm93_data *data = lm93_update_device(dev);
2193 return sprintf(buf, "%d\n",
2194 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
2195 }
2196
2197 static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
2198 struct device_attribute *attr,
2199 const char *buf, size_t count)
2200 {
2201 struct i2c_client *client = to_i2c_client(dev);
2202 struct lm93_data *data = i2c_get_clientdata(client);
2203 u8 ramp;
2204 unsigned long val;
2205 int err;
2206
2207 err = kstrtoul(buf, 10, &val);
2208 if (err)
2209 return err;
2210
2211 mutex_lock(&data->update_lock);
2212 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2213 ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
2214 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2215 mutex_unlock(&data->update_lock);
2216 return 0;
2217 }
2218
2219 static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
2220 show_pwm_auto_vrdhot_ramp,
2221 store_pwm_auto_vrdhot_ramp);
2222
2223 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
2224 char *buf)
2225 {
2226 int nr = (to_sensor_dev_attr(attr))->index;
2227 struct lm93_data *data = lm93_update_device(dev);
2228 return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr]));
2229 }
2230
2231 static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0);
2232 static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1);
2233
2234 static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
2235 char *buf)
2236 {
2237 int nr = (to_sensor_dev_attr(attr))->index;
2238 struct lm93_data *data = lm93_update_device(dev);
2239 return sprintf(buf, "%d\n", data->block4[nr].cur);
2240 }
2241
2242 static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
2243 static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
2244
2245 static ssize_t show_prochot_avg(struct device *dev,
2246 struct device_attribute *attr, char *buf)
2247 {
2248 int nr = (to_sensor_dev_attr(attr))->index;
2249 struct lm93_data *data = lm93_update_device(dev);
2250 return sprintf(buf, "%d\n", data->block4[nr].avg);
2251 }
2252
2253 static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
2254 static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
2255
2256 static ssize_t show_prochot_max(struct device *dev,
2257 struct device_attribute *attr, char *buf)
2258 {
2259 int nr = (to_sensor_dev_attr(attr))->index;
2260 struct lm93_data *data = lm93_update_device(dev);
2261 return sprintf(buf, "%d\n", data->prochot_max[nr]);
2262 }
2263
2264 static ssize_t store_prochot_max(struct device *dev,
2265 struct device_attribute *attr,
2266 const char *buf, size_t count)
2267 {
2268 int nr = (to_sensor_dev_attr(attr))->index;
2269 struct i2c_client *client = to_i2c_client(dev);
2270 struct lm93_data *data = i2c_get_clientdata(client);
2271 unsigned long val;
2272 int err;
2273
2274 err = kstrtoul(buf, 10, &val);
2275 if (err)
2276 return err;
2277
2278 mutex_lock(&data->update_lock);
2279 data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
2280 lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
2281 data->prochot_max[nr]);
2282 mutex_unlock(&data->update_lock);
2283 return count;
2284 }
2285
2286 static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
2287 show_prochot_max, store_prochot_max, 0);
2288 static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
2289 show_prochot_max, store_prochot_max, 1);
2290
2291 static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2292
2293 static ssize_t show_prochot_override(struct device *dev,
2294 struct device_attribute *attr, char *buf)
2295 {
2296 int nr = (to_sensor_dev_attr(attr))->index;
2297 struct lm93_data *data = lm93_update_device(dev);
2298 return sprintf(buf, "%d\n",
2299 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
2300 }
2301
2302 static ssize_t store_prochot_override(struct device *dev,
2303 struct device_attribute *attr,
2304 const char *buf, size_t count)
2305 {
2306 int nr = (to_sensor_dev_attr(attr))->index;
2307 struct i2c_client *client = to_i2c_client(dev);
2308 struct lm93_data *data = i2c_get_clientdata(client);
2309 unsigned long val;
2310 int err;
2311
2312 err = kstrtoul(buf, 10, &val);
2313 if (err)
2314 return err;
2315
2316 mutex_lock(&data->update_lock);
2317 if (val)
2318 data->prochot_override |= prochot_override_mask[nr];
2319 else
2320 data->prochot_override &= (~prochot_override_mask[nr]);
2321 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2322 data->prochot_override);
2323 mutex_unlock(&data->update_lock);
2324 return count;
2325 }
2326
2327 static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
2328 show_prochot_override, store_prochot_override, 0);
2329 static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
2330 show_prochot_override, store_prochot_override, 1);
2331
2332 static ssize_t show_prochot_interval(struct device *dev,
2333 struct device_attribute *attr, char *buf)
2334 {
2335 int nr = (to_sensor_dev_attr(attr))->index;
2336 struct lm93_data *data = lm93_update_device(dev);
2337 u8 tmp;
2338 if (nr == 1)
2339 tmp = (data->prochot_interval & 0xf0) >> 4;
2340 else
2341 tmp = data->prochot_interval & 0x0f;
2342 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));
2343 }
2344
2345 static ssize_t store_prochot_interval(struct device *dev,
2346 struct device_attribute *attr,
2347 const char *buf, size_t count)
2348 {
2349 int nr = (to_sensor_dev_attr(attr))->index;
2350 struct i2c_client *client = to_i2c_client(dev);
2351 struct lm93_data *data = i2c_get_clientdata(client);
2352 u8 tmp;
2353 unsigned long val;
2354 int err;
2355
2356 err = kstrtoul(buf, 10, &val);
2357 if (err)
2358 return err;
2359
2360 mutex_lock(&data->update_lock);
2361 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2362 if (nr == 1)
2363 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
2364 else
2365 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
2366 data->prochot_interval = tmp;
2367 lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
2368 mutex_unlock(&data->update_lock);
2369 return count;
2370 }
2371
2372 static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
2373 show_prochot_interval, store_prochot_interval, 0);
2374 static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
2375 show_prochot_interval, store_prochot_interval, 1);
2376
2377 static ssize_t show_prochot_override_duty_cycle(struct device *dev,
2378 struct device_attribute *attr,
2379 char *buf)
2380 {
2381 struct lm93_data *data = lm93_update_device(dev);
2382 return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
2383 }
2384
2385 static ssize_t store_prochot_override_duty_cycle(struct device *dev,
2386 struct device_attribute *attr,
2387 const char *buf, size_t count)
2388 {
2389 struct i2c_client *client = to_i2c_client(dev);
2390 struct lm93_data *data = i2c_get_clientdata(client);
2391 unsigned long val;
2392 int err;
2393
2394 err = kstrtoul(buf, 10, &val);
2395 if (err)
2396 return err;
2397
2398 mutex_lock(&data->update_lock);
2399 data->prochot_override = (data->prochot_override & 0xf0) |
2400 clamp_val(val, 0, 15);
2401 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2402 data->prochot_override);
2403 mutex_unlock(&data->update_lock);
2404 return count;
2405 }
2406
2407 static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
2408 show_prochot_override_duty_cycle,
2409 store_prochot_override_duty_cycle);
2410
2411 static ssize_t show_prochot_short(struct device *dev,
2412 struct device_attribute *attr, char *buf)
2413 {
2414 struct lm93_data *data = lm93_update_device(dev);
2415 return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
2416 }
2417
2418 static ssize_t store_prochot_short(struct device *dev,
2419 struct device_attribute *attr,
2420 const char *buf, size_t count)
2421 {
2422 struct i2c_client *client = to_i2c_client(dev);
2423 struct lm93_data *data = i2c_get_clientdata(client);
2424 unsigned long val;
2425 int err;
2426
2427 err = kstrtoul(buf, 10, &val);
2428 if (err)
2429 return err;
2430
2431 mutex_lock(&data->update_lock);
2432 if (val)
2433 data->config |= 0x10;
2434 else
2435 data->config &= ~0x10;
2436 lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2437 mutex_unlock(&data->update_lock);
2438 return count;
2439 }
2440
2441 static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
2442 show_prochot_short, store_prochot_short);
2443
2444 static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
2445 char *buf)
2446 {
2447 int nr = (to_sensor_dev_attr(attr))->index;
2448 struct lm93_data *data = lm93_update_device(dev);
2449 return sprintf(buf, "%d\n",
2450 data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0);
2451 }
2452
2453 static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
2454 static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
2455
2456 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
2457 char *buf)
2458 {
2459 struct lm93_data *data = lm93_update_device(dev);
2460 return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
2461 }
2462
2463 static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
2464
2465 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
2466 char *buf)
2467 {
2468 struct lm93_data *data = lm93_update_device(dev);
2469 return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
2470 }
2471
2472 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
2473
2474 static struct attribute *lm93_attrs[] = {
2475 &sensor_dev_attr_in1_input.dev_attr.attr,
2476 &sensor_dev_attr_in2_input.dev_attr.attr,
2477 &sensor_dev_attr_in3_input.dev_attr.attr,
2478 &sensor_dev_attr_in4_input.dev_attr.attr,
2479 &sensor_dev_attr_in5_input.dev_attr.attr,
2480 &sensor_dev_attr_in6_input.dev_attr.attr,
2481 &sensor_dev_attr_in7_input.dev_attr.attr,
2482 &sensor_dev_attr_in8_input.dev_attr.attr,
2483 &sensor_dev_attr_in9_input.dev_attr.attr,
2484 &sensor_dev_attr_in10_input.dev_attr.attr,
2485 &sensor_dev_attr_in11_input.dev_attr.attr,
2486 &sensor_dev_attr_in12_input.dev_attr.attr,
2487 &sensor_dev_attr_in13_input.dev_attr.attr,
2488 &sensor_dev_attr_in14_input.dev_attr.attr,
2489 &sensor_dev_attr_in15_input.dev_attr.attr,
2490 &sensor_dev_attr_in16_input.dev_attr.attr,
2491 &sensor_dev_attr_in1_min.dev_attr.attr,
2492 &sensor_dev_attr_in2_min.dev_attr.attr,
2493 &sensor_dev_attr_in3_min.dev_attr.attr,
2494 &sensor_dev_attr_in4_min.dev_attr.attr,
2495 &sensor_dev_attr_in5_min.dev_attr.attr,
2496 &sensor_dev_attr_in6_min.dev_attr.attr,
2497 &sensor_dev_attr_in7_min.dev_attr.attr,
2498 &sensor_dev_attr_in8_min.dev_attr.attr,
2499 &sensor_dev_attr_in9_min.dev_attr.attr,
2500 &sensor_dev_attr_in10_min.dev_attr.attr,
2501 &sensor_dev_attr_in11_min.dev_attr.attr,
2502 &sensor_dev_attr_in12_min.dev_attr.attr,
2503 &sensor_dev_attr_in13_min.dev_attr.attr,
2504 &sensor_dev_attr_in14_min.dev_attr.attr,
2505 &sensor_dev_attr_in15_min.dev_attr.attr,
2506 &sensor_dev_attr_in16_min.dev_attr.attr,
2507 &sensor_dev_attr_in1_max.dev_attr.attr,
2508 &sensor_dev_attr_in2_max.dev_attr.attr,
2509 &sensor_dev_attr_in3_max.dev_attr.attr,
2510 &sensor_dev_attr_in4_max.dev_attr.attr,
2511 &sensor_dev_attr_in5_max.dev_attr.attr,
2512 &sensor_dev_attr_in6_max.dev_attr.attr,
2513 &sensor_dev_attr_in7_max.dev_attr.attr,
2514 &sensor_dev_attr_in8_max.dev_attr.attr,
2515 &sensor_dev_attr_in9_max.dev_attr.attr,
2516 &sensor_dev_attr_in10_max.dev_attr.attr,
2517 &sensor_dev_attr_in11_max.dev_attr.attr,
2518 &sensor_dev_attr_in12_max.dev_attr.attr,
2519 &sensor_dev_attr_in13_max.dev_attr.attr,
2520 &sensor_dev_attr_in14_max.dev_attr.attr,
2521 &sensor_dev_attr_in15_max.dev_attr.attr,
2522 &sensor_dev_attr_in16_max.dev_attr.attr,
2523 &sensor_dev_attr_temp1_input.dev_attr.attr,
2524 &sensor_dev_attr_temp2_input.dev_attr.attr,
2525 &sensor_dev_attr_temp3_input.dev_attr.attr,
2526 &sensor_dev_attr_temp1_min.dev_attr.attr,
2527 &sensor_dev_attr_temp2_min.dev_attr.attr,
2528 &sensor_dev_attr_temp3_min.dev_attr.attr,
2529 &sensor_dev_attr_temp1_max.dev_attr.attr,
2530 &sensor_dev_attr_temp2_max.dev_attr.attr,
2531 &sensor_dev_attr_temp3_max.dev_attr.attr,
2532 &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
2533 &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
2534 &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
2535 &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
2536 &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
2537 &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
2538 &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
2539 &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
2540 &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
2541 &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
2542 &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
2543 &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
2544 &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
2545 &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
2546 &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
2547 &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
2548 &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
2549 &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
2550 &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
2551 &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
2552 &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
2553 &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
2554 &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
2555 &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
2556 &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
2557 &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
2558 &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
2559 &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
2560 &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
2561 &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
2562 &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
2563 &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
2564 &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
2565 &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
2566 &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
2567 &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
2568 &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
2569 &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
2570 &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
2571 &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
2572 &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
2573 &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
2574 &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
2575 &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
2576 &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
2577 &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
2578 &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
2579 &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
2580 &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
2581 &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
2582 &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
2583 &sensor_dev_attr_fan1_input.dev_attr.attr,
2584 &sensor_dev_attr_fan2_input.dev_attr.attr,
2585 &sensor_dev_attr_fan3_input.dev_attr.attr,
2586 &sensor_dev_attr_fan4_input.dev_attr.attr,
2587 &sensor_dev_attr_fan1_min.dev_attr.attr,
2588 &sensor_dev_attr_fan2_min.dev_attr.attr,
2589 &sensor_dev_attr_fan3_min.dev_attr.attr,
2590 &sensor_dev_attr_fan4_min.dev_attr.attr,
2591 &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
2592 &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
2593 &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
2594 &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
2595 &sensor_dev_attr_pwm1.dev_attr.attr,
2596 &sensor_dev_attr_pwm2.dev_attr.attr,
2597 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2598 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2599 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
2600 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
2601 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
2602 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
2603 &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
2604 &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
2605 &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
2606 &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
2607 &dev_attr_pwm_auto_prochot_ramp.attr,
2608 &dev_attr_pwm_auto_vrdhot_ramp.attr,
2609 &sensor_dev_attr_cpu0_vid.dev_attr.attr,
2610 &sensor_dev_attr_cpu1_vid.dev_attr.attr,
2611 &sensor_dev_attr_prochot1.dev_attr.attr,
2612 &sensor_dev_attr_prochot2.dev_attr.attr,
2613 &sensor_dev_attr_prochot1_avg.dev_attr.attr,
2614 &sensor_dev_attr_prochot2_avg.dev_attr.attr,
2615 &sensor_dev_attr_prochot1_max.dev_attr.attr,
2616 &sensor_dev_attr_prochot2_max.dev_attr.attr,
2617 &sensor_dev_attr_prochot1_override.dev_attr.attr,
2618 &sensor_dev_attr_prochot2_override.dev_attr.attr,
2619 &sensor_dev_attr_prochot1_interval.dev_attr.attr,
2620 &sensor_dev_attr_prochot2_interval.dev_attr.attr,
2621 &dev_attr_prochot_override_duty_cycle.attr,
2622 &dev_attr_prochot_short.attr,
2623 &sensor_dev_attr_vrdhot1.dev_attr.attr,
2624 &sensor_dev_attr_vrdhot2.dev_attr.attr,
2625 &dev_attr_gpio.attr,
2626 &dev_attr_alarms.attr,
2627 NULL
2628 };
2629
2630 static struct attribute_group lm93_attr_grp = {
2631 .attrs = lm93_attrs,
2632 };
2633
2634 static void lm93_init_client(struct i2c_client *client)
2635 {
2636 int i;
2637 u8 reg;
2638
2639 /* configure VID pin input thresholds */
2640 reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
2641 lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
2642 reg | (vid_agtl ? 0x03 : 0x00));
2643
2644 if (init) {
2645 /* enable #ALERT pin */
2646 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2647 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
2648
2649 /* enable ASF mode for BMC status registers */
2650 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
2651 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
2652
2653 /* set sleep state to S0 */
2654 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2655
2656 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2657 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
2658 reg &= ~0x03;
2659 reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
2660 reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
2661 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
2662 }
2663
2664 /* start monitoring */
2665 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2666 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2667
2668 /* spin until ready */
2669 for (i = 0; i < 20; i++) {
2670 msleep(10);
2671 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2672 return;
2673 }
2674
2675 dev_warn(&client->dev, "timed out waiting for sensor "
2676 "chip to signal ready!\n");
2677 }
2678
2679 /* Return 0 if detection is successful, -ENODEV otherwise */
2680 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2681 {
2682 struct i2c_adapter *adapter = client->adapter;
2683 int mfr, ver;
2684 const char *name;
2685
2686 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2687 return -ENODEV;
2688
2689 /* detection */
2690 mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2691 if (mfr != 0x01) {
2692 dev_dbg(&adapter->dev,
2693 "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2694 return -ENODEV;
2695 }
2696
2697 ver = lm93_read_byte(client, LM93_REG_VER);
2698 switch (ver) {
2699 case LM93_MFR_ID:
2700 case LM93_MFR_ID_PROTOTYPE:
2701 name = "lm93";
2702 break;
2703 case LM94_MFR_ID_2:
2704 case LM94_MFR_ID:
2705 case LM94_MFR_ID_PROTOTYPE:
2706 name = "lm94";
2707 break;
2708 default:
2709 dev_dbg(&adapter->dev,
2710 "detect failed, bad version id 0x%02x!\n", ver);
2711 return -ENODEV;
2712 }
2713
2714 strlcpy(info->type, name, I2C_NAME_SIZE);
2715 dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n",
2716 client->name, i2c_adapter_id(client->adapter),
2717 client->addr);
2718
2719 return 0;
2720 }
2721
2722 static int lm93_probe(struct i2c_client *client,
2723 const struct i2c_device_id *id)
2724 {
2725 struct lm93_data *data;
2726 int err, func;
2727 void (*update)(struct lm93_data *, struct i2c_client *);
2728
2729 /* choose update routine based on bus capabilities */
2730 func = i2c_get_functionality(client->adapter);
2731 if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
2732 (!disable_block)) {
2733 dev_dbg(&client->dev, "using SMBus block data transactions\n");
2734 update = lm93_update_client_full;
2735 } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
2736 dev_dbg(&client->dev, "disabled SMBus block data "
2737 "transactions\n");
2738 update = lm93_update_client_min;
2739 } else {
2740 dev_dbg(&client->dev, "detect failed, "
2741 "smbus byte and/or word data not supported!\n");
2742 return -ENODEV;
2743 }
2744
2745 data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
2746 if (!data) {
2747 dev_dbg(&client->dev, "out of memory!\n");
2748 return -ENOMEM;
2749 }
2750 i2c_set_clientdata(client, data);
2751
2752 /* housekeeping */
2753 data->valid = 0;
2754 data->update = update;
2755 mutex_init(&data->update_lock);
2756
2757 /* initialize the chip */
2758 lm93_init_client(client);
2759
2760 err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
2761 if (err)
2762 return err;
2763
2764 /* Register hwmon driver class */
2765 data->hwmon_dev = hwmon_device_register(&client->dev);
2766 if (!IS_ERR(data->hwmon_dev))
2767 return 0;
2768
2769 err = PTR_ERR(data->hwmon_dev);
2770 dev_err(&client->dev, "error registering hwmon device.\n");
2771 sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2772 return err;
2773 }
2774
2775 static int lm93_remove(struct i2c_client *client)
2776 {
2777 struct lm93_data *data = i2c_get_clientdata(client);
2778
2779 hwmon_device_unregister(data->hwmon_dev);
2780 sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2781
2782 return 0;
2783 }
2784
2785 static const struct i2c_device_id lm93_id[] = {
2786 { "lm93", 0 },
2787 { "lm94", 0 },
2788 { }
2789 };
2790 MODULE_DEVICE_TABLE(i2c, lm93_id);
2791
2792 static struct i2c_driver lm93_driver = {
2793 .class = I2C_CLASS_HWMON,
2794 .driver = {
2795 .name = "lm93",
2796 },
2797 .probe = lm93_probe,
2798 .remove = lm93_remove,
2799 .id_table = lm93_id,
2800 .detect = lm93_detect,
2801 .address_list = normal_i2c,
2802 };
2803
2804 module_i2c_driver(lm93_driver);
2805
2806 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
2807 "Hans J. Koch <hjk@hansjkoch.de>");
2808 MODULE_DESCRIPTION("LM93 driver");
2809 MODULE_LICENSE("GPL");
CJK support for tty framebuffer vt