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davinci: explain CLOCK_TICK_RATE of 27MHz in include/mach/timex.h
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / hwmon / lm93.c
blob6669255aadcfcefc783c01f0c345a72b411f70c9
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@linutronix.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
51 /* LM93 REGISTER ADDRESSES */
52
53 /* miscellaneous */
54 #define LM93_REG_MFR_ID 0x3e
55 #define LM93_REG_VER 0x3f
56 #define LM93_REG_STATUS_CONTROL 0xe2
57 #define LM93_REG_CONFIG 0xe3
58 #define LM93_REG_SLEEP_CONTROL 0xe4
59
60 /* alarm values start here */
61 #define LM93_REG_HOST_ERROR_1 0x48
62
63 /* voltage inputs: in1-in16 (nr => 0-15) */
64 #define LM93_REG_IN(nr) (0x56 + (nr))
65 #define LM93_REG_IN_MIN(nr) (0x90 + (nr) * 2)
66 #define LM93_REG_IN_MAX(nr) (0x91 + (nr) * 2)
67
68 /* temperature inputs: temp1-temp4 (nr => 0-3) */
69 #define LM93_REG_TEMP(nr) (0x50 + (nr))
70 #define LM93_REG_TEMP_MIN(nr) (0x78 + (nr) * 2)
71 #define LM93_REG_TEMP_MAX(nr) (0x79 + (nr) * 2)
72
73 /* temp[1-4]_auto_boost (nr => 0-3) */
74 #define LM93_REG_BOOST(nr) (0x80 + (nr))
75
76 /* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */
77 #define LM93_REG_PROCHOT_CUR(nr) (0x67 + (nr) * 2)
78 #define LM93_REG_PROCHOT_AVG(nr) (0x68 + (nr) * 2)
79 #define LM93_REG_PROCHOT_MAX(nr) (0xb0 + (nr))
80
81 /* fan tach inputs: fan1-fan4 (nr => 0-3) */
82 #define LM93_REG_FAN(nr) (0x6e + (nr) * 2)
83 #define LM93_REG_FAN_MIN(nr) (0xb4 + (nr) * 2)
84
85 /* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */
86 #define LM93_REG_PWM_CTL(nr,reg) (0xc8 + (reg) + (nr) * 4)
87 #define LM93_PWM_CTL1 0x0
88 #define LM93_PWM_CTL2 0x1
89 #define LM93_PWM_CTL3 0x2
90 #define LM93_PWM_CTL4 0x3
91
92 /* GPIO input state */
93 #define LM93_REG_GPI 0x6b
94
95 /* vid inputs: vid1-vid2 (nr => 0-1) */
96 #define LM93_REG_VID(nr) (0x6c + (nr))
97
98 /* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
99 #define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr))
100
101 /* temp[1-4]_auto_boost_hyst */
102 #define LM93_REG_BOOST_HYST_12 0xc0
103 #define LM93_REG_BOOST_HYST_34 0xc1
104 #define LM93_REG_BOOST_HYST(nr) (0xc0 + (nr)/2)
105
106 /* temp[1-4]_auto_pwm_[min|hyst] */
107 #define LM93_REG_PWM_MIN_HYST_12 0xc3
108 #define LM93_REG_PWM_MIN_HYST_34 0xc4
109 #define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2)
110
111 /* prochot_override & prochot_interval */
112 #define LM93_REG_PROCHOT_OVERRIDE 0xc6
113 #define LM93_REG_PROCHOT_INTERVAL 0xc7
114
115 /* temp[1-4]_auto_base (nr => 0-3) */
116 #define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr))
117
118 /* temp[1-4]_auto_offsets (step => 0-11) */
119 #define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step))
120
121 /* #PROCHOT & #VRDHOT PWM ramp control */
122 #define LM93_REG_PWM_RAMP_CTL 0xbf
123
124 /* miscellaneous */
125 #define LM93_REG_SFC1 0xbc
126 #define LM93_REG_SFC2 0xbd
127 #define LM93_REG_GPI_VID_CTL 0xbe
128 #define LM93_REG_SF_TACH_TO_PWM 0xe0
129
130 /* error masks */
131 #define LM93_REG_GPI_ERR_MASK 0xec
132 #define LM93_REG_MISC_ERR_MASK 0xed
133
134 /* LM93 REGISTER VALUES */
135 #define LM93_MFR_ID 0x73
136 #define LM93_MFR_ID_PROTOTYPE 0x72
137
138 /* SMBus capabilities */
139 #define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \
140 I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)
141 #define LM93_SMBUS_FUNC_MIN (I2C_FUNC_SMBUS_BYTE_DATA | \
142 I2C_FUNC_SMBUS_WORD_DATA)
143
144 /* Addresses to scan */
145 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
146
147 /* Insmod parameters */
148
149 static int disable_block;
150 module_param(disable_block, bool, 0);
151 MODULE_PARM_DESC(disable_block,
152 "Set to non-zero to disable SMBus block data transactions.");
153
154 static int init;
155 module_param(init, bool, 0);
156 MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
157
158 static int vccp_limit_type[2] = {0,0};
159 module_param_array(vccp_limit_type, int, NULL, 0);
160 MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
161
162 static int vid_agtl;
163 module_param(vid_agtl, int, 0);
164 MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
165
166 /* Driver data */
167 static struct i2c_driver lm93_driver;
168
169 /* LM93 BLOCK READ COMMANDS */
170 static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
171 { 0xf2, 8 },
172 { 0xf3, 8 },
173 { 0xf4, 6 },
174 { 0xf5, 16 },
175 { 0xf6, 4 },
176 { 0xf7, 8 },
177 { 0xf8, 12 },
178 { 0xf9, 32 },
179 { 0xfa, 8 },
180 { 0xfb, 8 },
181 { 0xfc, 16 },
182 { 0xfd, 9 },
183 };
184
185 /* ALARMS: SYSCTL format described further below
186 REG: 64 bits in 8 registers, as immediately below */
187 struct block1_t {
188 u8 host_status_1;
189 u8 host_status_2;
190 u8 host_status_3;
191 u8 host_status_4;
192 u8 p1_prochot_status;
193 u8 p2_prochot_status;
194 u8 gpi_status;
195 u8 fan_status;
196 };
197
198 /*
199 * Client-specific data
200 */
201 struct lm93_data {
202 struct device *hwmon_dev;
203
204 struct mutex update_lock;
205 unsigned long last_updated; /* In jiffies */
206
207 /* client update function */
208 void (*update)(struct lm93_data *, struct i2c_client *);
209
210 char valid; /* !=0 if following fields are valid */
211
212 /* register values, arranged by block read groups */
213 struct block1_t block1;
214
215 /* temp1 - temp4: unfiltered readings
216 temp1 - temp2: filtered readings */
217 u8 block2[6];
218
219 /* vin1 - vin16: readings */
220 u8 block3[16];
221
222 /* prochot1 - prochot2: readings */
223 struct {
224 u8 cur;
225 u8 avg;
226 } block4[2];
227
228 /* fan counts 1-4 => 14-bits, LE, *left* justified */
229 u16 block5[4];
230
231 /* block6 has a lot of data we don't need */
232 struct {
233 u8 min;
234 u8 max;
235 } temp_lim[4];
236
237 /* vin1 - vin16: low and high limits */
238 struct {
239 u8 min;
240 u8 max;
241 } block7[16];
242
243 /* fan count limits 1-4 => same format as block5 */
244 u16 block8[4];
245
246 /* pwm control registers (2 pwms, 4 regs) */
247 u8 block9[2][4];
248
249 /* auto/pwm base temp and offset temp registers */
250 struct {
251 u8 base[4];
252 u8 offset[12];
253 } block10;
254
255 /* master config register */
256 u8 config;
257
258 /* VID1 & VID2 => register format, 6-bits, right justified */
259 u8 vid[2];
260
261 /* prochot1 - prochot2: limits */
262 u8 prochot_max[2];
263
264 /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
265 u8 vccp_limits[2];
266
267 /* GPIO input state (register format, i.e. inverted) */
268 u8 gpi;
269
270 /* #PROCHOT override (register format) */
271 u8 prochot_override;
272
273 /* #PROCHOT intervals (register format) */
274 u8 prochot_interval;
275
276 /* Fan Boost Temperatures (register format) */
277 u8 boost[4];
278
279 /* Fan Boost Hysteresis (register format) */
280 u8 boost_hyst[2];
281
282 /* Temperature Zone Min. PWM & Hysteresis (register format) */
283 u8 auto_pwm_min_hyst[2];
284
285 /* #PROCHOT & #VRDHOT PWM Ramp Control */
286 u8 pwm_ramp_ctl;
287
288 /* miscellaneous setup regs */
289 u8 sfc1;
290 u8 sfc2;
291 u8 sf_tach_to_pwm;
292
293 /* The two PWM CTL2 registers can read something other than what was
294 last written for the OVR_DC field (duty cycle override). So, we
295 save the user-commanded value here. */
296 u8 pwm_override[2];
297 };
298
299 /* VID: mV
300 REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 */
301 static int LM93_VID_FROM_REG(u8 reg)
302 {
303 return vid_from_reg((reg & 0x3f), 100);
304 }
305
306 /* min, max, and nominal register values, per channel (u8) */
307 static const u8 lm93_vin_reg_min[16] = {
308 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
309 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,
310 };
311 static const u8 lm93_vin_reg_max[16] = {
312 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
313 0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,
314 };
315 /* Values from the datasheet. They're here for documentation only.
316 static const u8 lm93_vin_reg_nom[16] = {
317 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
318 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,
319 };
320 */
321
322 /* min, max, and nominal voltage readings, per channel (mV)*/
323 static const unsigned long lm93_vin_val_min[16] = {
324 0, 0, 0, 0, 0, 0, 0, 0,
325 0, 0, 0, 0, 0, 0, 0, 3000,
326 };
327
328 static const unsigned long lm93_vin_val_max[16] = {
329 1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,
330 4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,
331 };
332 /* Values from the datasheet. They're here for documentation only.
333 static const unsigned long lm93_vin_val_nom[16] = {
334 927, 927, 927, 1200, 1500, 1500, 1200, 1200,
335 3300, 5000, 2500, 1969, 984, 984, 309, 3300,
336 };
337 */
338
339 static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
340 {
341 const long uV_max = lm93_vin_val_max[nr] * 1000;
342 const long uV_min = lm93_vin_val_min[nr] * 1000;
343
344 const long slope = (uV_max - uV_min) /
345 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
346 const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
347
348 return (slope * reg + intercept + 500) / 1000;
349 }
350
351 /* IN: mV, limits determined by channel nr
352 REG: scaling determined by channel nr */
353 static u8 LM93_IN_TO_REG(int nr, unsigned val)
354 {
355 /* range limit */
356 const long mV = SENSORS_LIMIT(val,
357 lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
358
359 /* try not to lose too much precision here */
360 const long uV = mV * 1000;
361 const long uV_max = lm93_vin_val_max[nr] * 1000;
362 const long uV_min = lm93_vin_val_min[nr] * 1000;
363
364 /* convert */
365 const long slope = (uV_max - uV_min) /
366 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
367 const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
368
369 u8 result = ((uV - intercept + (slope/2)) / slope);
370 result = SENSORS_LIMIT(result,
371 lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
372 return result;
373 }
374
375 /* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
376 static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)
377 {
378 const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :
379 (((reg >> 0 & 0x0f) + 1) * -25000);
380 const long uV_vid = vid * 1000;
381 return (uV_vid + uV_offset + 5000) / 10000;
382 }
383
384 #define LM93_IN_MIN_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,0,vid)
385 #define LM93_IN_MAX_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,1,vid)
386
387 /* vid in mV , upper == 0 indicates low limit, otherwise upper limit
388 upper also determines which nibble of the register is returned
389 (the other nibble will be 0x0) */
390 static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
391 {
392 long uV_offset = vid * 1000 - val * 10000;
393 if (upper) {
394 uV_offset = SENSORS_LIMIT(uV_offset, 12500, 200000);
395 return (u8)((uV_offset / 12500 - 1) << 4);
396 } else {
397 uV_offset = SENSORS_LIMIT(uV_offset, -400000, -25000);
398 return (u8)((uV_offset / -25000 - 1) << 0);
399 }
400 }
401
402 /* TEMP: 1/1000 degrees C (-128C to +127C)
403 REG: 1C/bit, two's complement */
404 static int LM93_TEMP_FROM_REG(u8 reg)
405 {
406 return (s8)reg * 1000;
407 }
408
409 #define LM93_TEMP_MIN (-128000)
410 #define LM93_TEMP_MAX ( 127000)
411
412 /* TEMP: 1/1000 degrees C (-128C to +127C)
413 REG: 1C/bit, two's complement */
414 static u8 LM93_TEMP_TO_REG(long temp)
415 {
416 int ntemp = SENSORS_LIMIT(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
417 ntemp += (ntemp<0 ? -500 : 500);
418 return (u8)(ntemp / 1000);
419 }
420
421 /* Determine 4-bit temperature offset resolution */
422 static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
423 {
424 /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
425 return sfc2 & (nr < 2 ? 0x10 : 0x20);
426 }
427
428 /* This function is common to all 4-bit temperature offsets
429 reg is 4 bits right justified
430 mode 0 => 1C/bit, mode !0 => 0.5C/bit */
431 static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
432 {
433 return (reg & 0x0f) * (mode ? 5 : 10);
434 }
435
436 #define LM93_TEMP_OFFSET_MIN ( 0)
437 #define LM93_TEMP_OFFSET_MAX0 (150)
438 #define LM93_TEMP_OFFSET_MAX1 ( 75)
439
440 /* This function is common to all 4-bit temperature offsets
441 returns 4 bits right justified
442 mode 0 => 1C/bit, mode !0 => 0.5C/bit */
443 static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
444 {
445 int factor = mode ? 5 : 10;
446
447 off = SENSORS_LIMIT(off, LM93_TEMP_OFFSET_MIN,
448 mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
449 return (u8)((off + factor/2) / factor);
450 }
451
452 /* 0 <= nr <= 3 */
453 static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
454 {
455 /* temp1-temp2 (nr=0,1) use lower nibble */
456 if (nr < 2)
457 return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
458
459 /* temp3-temp4 (nr=2,3) use upper nibble */
460 else
461 return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
462 }
463
464 /* TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))
465 REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)
466 0 <= nr <= 3 */
467 static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
468 {
469 u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
470
471 /* temp1-temp2 (nr=0,1) use lower nibble */
472 if (nr < 2)
473 return (old & 0xf0) | (new & 0x0f);
474
475 /* temp3-temp4 (nr=2,3) use upper nibble */
476 else
477 return (new << 4 & 0xf0) | (old & 0x0f);
478 }
479
480 static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
481 int mode)
482 {
483 u8 reg;
484
485 switch (nr) {
486 case 0:
487 reg = data->boost_hyst[0] & 0x0f;
488 break;
489 case 1:
490 reg = data->boost_hyst[0] >> 4 & 0x0f;
491 break;
492 case 2:
493 reg = data->boost_hyst[1] & 0x0f;
494 break;
495 case 3:
496 default:
497 reg = data->boost_hyst[1] >> 4 & 0x0f;
498 break;
499 }
500
501 return LM93_TEMP_FROM_REG(data->boost[nr]) -
502 LM93_TEMP_OFFSET_FROM_REG(reg, mode);
503 }
504
505 static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
506 int nr, int mode)
507 {
508 u8 reg = LM93_TEMP_OFFSET_TO_REG(
509 (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
510
511 switch (nr) {
512 case 0:
513 reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
514 break;
515 case 1:
516 reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
517 break;
518 case 2:
519 reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
520 break;
521 case 3:
522 default:
523 reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
524 break;
525 }
526
527 return reg;
528 }
529
530 /* PWM: 0-255 per sensors documentation
531 REG: 0-13 as mapped below... right justified */
532 typedef enum { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ } pwm_freq_t;
533 static int lm93_pwm_map[2][16] = {
534 {
535 0x00, /* 0.00% */ 0x40, /* 25.00% */
536 0x50, /* 31.25% */ 0x60, /* 37.50% */
537 0x70, /* 43.75% */ 0x80, /* 50.00% */
538 0x90, /* 56.25% */ 0xa0, /* 62.50% */
539 0xb0, /* 68.75% */ 0xc0, /* 75.00% */
540 0xd0, /* 81.25% */ 0xe0, /* 87.50% */
541 0xf0, /* 93.75% */ 0xff, /* 100.00% */
542 0xff, 0xff, /* 14, 15 are reserved and should never occur */
543 },
544 {
545 0x00, /* 0.00% */ 0x40, /* 25.00% */
546 0x49, /* 28.57% */ 0x52, /* 32.14% */
547 0x5b, /* 35.71% */ 0x64, /* 39.29% */
548 0x6d, /* 42.86% */ 0x76, /* 46.43% */
549 0x80, /* 50.00% */ 0x89, /* 53.57% */
550 0x92, /* 57.14% */ 0xb6, /* 71.43% */
551 0xdb, /* 85.71% */ 0xff, /* 100.00% */
552 0xff, 0xff, /* 14, 15 are reserved and should never occur */
553 },
554 };
555
556 static int LM93_PWM_FROM_REG(u8 reg, pwm_freq_t freq)
557 {
558 return lm93_pwm_map[freq][reg & 0x0f];
559 }
560
561 /* round up to nearest match */
562 static u8 LM93_PWM_TO_REG(int pwm, pwm_freq_t freq)
563 {
564 int i;
565 for (i = 0; i < 13; i++)
566 if (pwm <= lm93_pwm_map[freq][i])
567 break;
568
569 /* can fall through with i==13 */
570 return (u8)i;
571 }
572
573 static int LM93_FAN_FROM_REG(u16 regs)
574 {
575 const u16 count = le16_to_cpu(regs) >> 2;
576 return count==0 ? -1 : count==0x3fff ? 0: 1350000 / count;
577 }
578
579 /*
580 * RPM: (82.5 to 1350000)
581 * REG: 14-bits, LE, *left* justified
582 */
583 static u16 LM93_FAN_TO_REG(long rpm)
584 {
585 u16 count, regs;
586
587 if (rpm == 0) {
588 count = 0x3fff;
589 } else {
590 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
591 count = SENSORS_LIMIT((1350000 + rpm) / rpm, 1, 0x3ffe);
592 }
593
594 regs = count << 2;
595 return cpu_to_le16(regs);
596 }
597
598 /* PWM FREQ: HZ
599 REG: 0-7 as mapped below */
600 static int lm93_pwm_freq_map[8] = {
601 22500, 96, 84, 72, 60, 48, 36, 12
602 };
603
604 static int LM93_PWM_FREQ_FROM_REG(u8 reg)
605 {
606 return lm93_pwm_freq_map[reg & 0x07];
607 }
608
609 /* round up to nearest match */
610 static u8 LM93_PWM_FREQ_TO_REG(int freq)
611 {
612 int i;
613 for (i = 7; i > 0; i--)
614 if (freq <= lm93_pwm_freq_map[i])
615 break;
616
617 /* can fall through with i==0 */
618 return (u8)i;
619 }
620
621 /* TIME: 1/100 seconds
622 * REG: 0-7 as mapped below */
623 static int lm93_spinup_time_map[8] = {
624 0, 10, 25, 40, 70, 100, 200, 400,
625 };
626
627 static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
628 {
629 return lm93_spinup_time_map[reg >> 5 & 0x07];
630 }
631
632 /* round up to nearest match */
633 static u8 LM93_SPINUP_TIME_TO_REG(int time)
634 {
635 int i;
636 for (i = 0; i < 7; i++)
637 if (time <= lm93_spinup_time_map[i])
638 break;
639
640 /* can fall through with i==8 */
641 return (u8)i;
642 }
643
644 #define LM93_RAMP_MIN 0
645 #define LM93_RAMP_MAX 75
646
647 static int LM93_RAMP_FROM_REG(u8 reg)
648 {
649 return (reg & 0x0f) * 5;
650 }
651
652 /* RAMP: 1/100 seconds
653 REG: 50mS/bit 4-bits right justified */
654 static u8 LM93_RAMP_TO_REG(int ramp)
655 {
656 ramp = SENSORS_LIMIT(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
657 return (u8)((ramp + 2) / 5);
658 }
659
660 /* PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
661 * REG: (same) */
662 static u8 LM93_PROCHOT_TO_REG(long prochot)
663 {
664 prochot = SENSORS_LIMIT(prochot, 0, 255);
665 return (u8)prochot;
666 }
667
668 /* PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
669 * REG: 0-9 as mapped below */
670 static int lm93_interval_map[10] = {
671 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
672 };
673
674 static int LM93_INTERVAL_FROM_REG(u8 reg)
675 {
676 return lm93_interval_map[reg & 0x0f];
677 }
678
679 /* round up to nearest match */
680 static u8 LM93_INTERVAL_TO_REG(long interval)
681 {
682 int i;
683 for (i = 0; i < 9; i++)
684 if (interval <= lm93_interval_map[i])
685 break;
686
687 /* can fall through with i==9 */
688 return (u8)i;
689 }
690
691 /* GPIO: 0-255, GPIO0 is LSB
692 * REG: inverted */
693 static unsigned LM93_GPI_FROM_REG(u8 reg)
694 {
695 return ~reg & 0xff;
696 }
697
698 /* alarm bitmask definitions
699 The LM93 has nearly 64 bits of error status... I've pared that down to
700 what I think is a useful subset in order to fit it into 32 bits.
701
702 Especially note that the #VRD_HOT alarms are missing because we provide
703 that information as values in another sysfs file.
704
705 If libsensors is extended to support 64 bit values, this could be revisited.
706 */
707 #define LM93_ALARM_IN1 0x00000001
708 #define LM93_ALARM_IN2 0x00000002
709 #define LM93_ALARM_IN3 0x00000004
710 #define LM93_ALARM_IN4 0x00000008
711 #define LM93_ALARM_IN5 0x00000010
712 #define LM93_ALARM_IN6 0x00000020
713 #define LM93_ALARM_IN7 0x00000040
714 #define LM93_ALARM_IN8 0x00000080
715 #define LM93_ALARM_IN9 0x00000100
716 #define LM93_ALARM_IN10 0x00000200
717 #define LM93_ALARM_IN11 0x00000400
718 #define LM93_ALARM_IN12 0x00000800
719 #define LM93_ALARM_IN13 0x00001000
720 #define LM93_ALARM_IN14 0x00002000
721 #define LM93_ALARM_IN15 0x00004000
722 #define LM93_ALARM_IN16 0x00008000
723 #define LM93_ALARM_FAN1 0x00010000
724 #define LM93_ALARM_FAN2 0x00020000
725 #define LM93_ALARM_FAN3 0x00040000
726 #define LM93_ALARM_FAN4 0x00080000
727 #define LM93_ALARM_PH1_ERR 0x00100000
728 #define LM93_ALARM_PH2_ERR 0x00200000
729 #define LM93_ALARM_SCSI1_ERR 0x00400000
730 #define LM93_ALARM_SCSI2_ERR 0x00800000
731 #define LM93_ALARM_DVDDP1_ERR 0x01000000
732 #define LM93_ALARM_DVDDP2_ERR 0x02000000
733 #define LM93_ALARM_D1_ERR 0x04000000
734 #define LM93_ALARM_D2_ERR 0x08000000
735 #define LM93_ALARM_TEMP1 0x10000000
736 #define LM93_ALARM_TEMP2 0x20000000
737 #define LM93_ALARM_TEMP3 0x40000000
738
739 static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
740 {
741 unsigned result;
742 result = b1.host_status_2 & 0x3f;
743
744 if (vccp_limit_type[0])
745 result |= (b1.host_status_4 & 0x10) << 2;
746 else
747 result |= b1.host_status_2 & 0x40;
748
749 if (vccp_limit_type[1])
750 result |= (b1.host_status_4 & 0x20) << 2;
751 else
752 result |= b1.host_status_2 & 0x80;
753
754 result |= b1.host_status_3 << 8;
755 result |= (b1.fan_status & 0x0f) << 16;
756 result |= (b1.p1_prochot_status & 0x80) << 13;
757 result |= (b1.p2_prochot_status & 0x80) << 14;
758 result |= (b1.host_status_4 & 0xfc) << 20;
759 result |= (b1.host_status_1 & 0x07) << 28;
760 return result;
761 }
762
763 #define MAX_RETRIES 5
764
765 static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
766 {
767 int value, i;
768
769 /* retry in case of read errors */
770 for (i=1; i<=MAX_RETRIES; i++) {
771 if ((value = i2c_smbus_read_byte_data(client, reg)) >= 0) {
772 return value;
773 } else {
774 dev_warn(&client->dev,"lm93: read byte data failed, "
775 "address 0x%02x.\n", reg);
776 mdelay(i + 3);
777 }
778
779 }
780
781 /* <TODO> what to return in case of error? */
782 dev_err(&client->dev,"lm93: All read byte retries failed!!\n");
783 return 0;
784 }
785
786 static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
787 {
788 int result;
789
790 /* <TODO> how to handle write errors? */
791 result = i2c_smbus_write_byte_data(client, reg, value);
792
793 if (result < 0)
794 dev_warn(&client->dev,"lm93: write byte data failed, "
795 "0x%02x at address 0x%02x.\n", value, reg);
796
797 return result;
798 }
799
800 static u16 lm93_read_word(struct i2c_client *client, u8 reg)
801 {
802 int value, i;
803
804 /* retry in case of read errors */
805 for (i=1; i<=MAX_RETRIES; i++) {
806 if ((value = i2c_smbus_read_word_data(client, reg)) >= 0) {
807 return value;
808 } else {
809 dev_warn(&client->dev,"lm93: read word data failed, "
810 "address 0x%02x.\n", reg);
811 mdelay(i + 3);
812 }
813
814 }
815
816 /* <TODO> what to return in case of error? */
817 dev_err(&client->dev,"lm93: All read word retries failed!!\n");
818 return 0;
819 }
820
821 static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
822 {
823 int result;
824
825 /* <TODO> how to handle write errors? */
826 result = i2c_smbus_write_word_data(client, reg, value);
827
828 if (result < 0)
829 dev_warn(&client->dev,"lm93: write word data failed, "
830 "0x%04x at address 0x%02x.\n", value, reg);
831
832 return result;
833 }
834
835 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
836
837 /*
838 read block data into values, retry if not expected length
839 fbn => index to lm93_block_read_cmds table
840 (Fixed Block Number - section 14.5.2 of LM93 datasheet)
841 */
842 static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
843 {
844 int i, result=0;
845
846 for (i = 1; i <= MAX_RETRIES; i++) {
847 result = i2c_smbus_read_block_data(client,
848 lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
849
850 if (result == lm93_block_read_cmds[fbn].len) {
851 break;
852 } else {
853 dev_warn(&client->dev,"lm93: block read data failed, "
854 "command 0x%02x.\n",
855 lm93_block_read_cmds[fbn].cmd);
856 mdelay(i + 3);
857 }
858 }
859
860 if (result == lm93_block_read_cmds[fbn].len) {
861 memcpy(values,lm93_block_buffer,lm93_block_read_cmds[fbn].len);
862 } else {
863 /* <TODO> what to do in case of error? */
864 }
865 }
866
867 static struct lm93_data *lm93_update_device(struct device *dev)
868 {
869 struct i2c_client *client = to_i2c_client(dev);
870 struct lm93_data *data = i2c_get_clientdata(client);
871 const unsigned long interval = HZ + (HZ / 2);
872
873 mutex_lock(&data->update_lock);
874
875 if (time_after(jiffies, data->last_updated + interval) ||
876 !data->valid) {
877
878 data->update(data, client);
879 data->last_updated = jiffies;
880 data->valid = 1;
881 }
882
883 mutex_unlock(&data->update_lock);
884 return data;
885 }
886
887 /* update routine for data that has no corresponding SMBus block command */
888 static void lm93_update_client_common(struct lm93_data *data,
889 struct i2c_client *client)
890 {
891 int i;
892 u8 *ptr;
893
894 /* temp1 - temp4: limits */
895 for (i = 0; i < 4; i++) {
896 data->temp_lim[i].min =
897 lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
898 data->temp_lim[i].max =
899 lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
900 }
901
902 /* config register */
903 data->config = lm93_read_byte(client, LM93_REG_CONFIG);
904
905 /* vid1 - vid2: values */
906 for (i = 0; i < 2; i++)
907 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
908
909 /* prochot1 - prochot2: limits */
910 for (i = 0; i < 2; i++)
911 data->prochot_max[i] = lm93_read_byte(client,
912 LM93_REG_PROCHOT_MAX(i));
913
914 /* vccp1 - vccp2: VID relative limits */
915 for (i = 0; i < 2; i++)
916 data->vccp_limits[i] = lm93_read_byte(client,
917 LM93_REG_VCCP_LIMIT_OFF(i));
918
919 /* GPIO input state */
920 data->gpi = lm93_read_byte(client, LM93_REG_GPI);
921
922 /* #PROCHOT override state */
923 data->prochot_override = lm93_read_byte(client,
924 LM93_REG_PROCHOT_OVERRIDE);
925
926 /* #PROCHOT intervals */
927 data->prochot_interval = lm93_read_byte(client,
928 LM93_REG_PROCHOT_INTERVAL);
929
930 /* Fan Boost Temperature registers */
931 for (i = 0; i < 4; i++)
932 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
933
934 /* Fan Boost Temperature Hyst. registers */
935 data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
936 data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
937
938 /* Temperature Zone Min. PWM & Hysteresis registers */
939 data->auto_pwm_min_hyst[0] =
940 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
941 data->auto_pwm_min_hyst[1] =
942 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
943
944 /* #PROCHOT & #VRDHOT PWM Ramp Control register */
945 data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
946
947 /* misc setup registers */
948 data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
949 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
950 data->sf_tach_to_pwm = lm93_read_byte(client,
951 LM93_REG_SF_TACH_TO_PWM);
952
953 /* write back alarm values to clear */
954 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
955 lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
956 }
957
958 /* update routine which uses SMBus block data commands */
959 static void lm93_update_client_full(struct lm93_data *data,
960 struct i2c_client *client)
961 {
962 dev_dbg(&client->dev,"starting device update (block data enabled)\n");
963
964 /* in1 - in16: values & limits */
965 lm93_read_block(client, 3, (u8 *)(data->block3));
966 lm93_read_block(client, 7, (u8 *)(data->block7));
967
968 /* temp1 - temp4: values */
969 lm93_read_block(client, 2, (u8 *)(data->block2));
970
971 /* prochot1 - prochot2: values */
972 lm93_read_block(client, 4, (u8 *)(data->block4));
973
974 /* fan1 - fan4: values & limits */
975 lm93_read_block(client, 5, (u8 *)(data->block5));
976 lm93_read_block(client, 8, (u8 *)(data->block8));
977
978 /* pmw control registers */
979 lm93_read_block(client, 9, (u8 *)(data->block9));
980
981 /* alarm values */
982 lm93_read_block(client, 1, (u8 *)(&data->block1));
983
984 /* auto/pwm registers */
985 lm93_read_block(client, 10, (u8 *)(&data->block10));
986
987 lm93_update_client_common(data, client);
988 }
989
990 /* update routine which uses SMBus byte/word data commands only */
991 static void lm93_update_client_min(struct lm93_data *data,
992 struct i2c_client *client)
993 {
994 int i,j;
995 u8 *ptr;
996
997 dev_dbg(&client->dev,"starting device update (block data disabled)\n");
998
999 /* in1 - in16: values & limits */
1000 for (i = 0; i < 16; i++) {
1001 data->block3[i] =
1002 lm93_read_byte(client, LM93_REG_IN(i));
1003 data->block7[i].min =
1004 lm93_read_byte(client, LM93_REG_IN_MIN(i));
1005 data->block7[i].max =
1006 lm93_read_byte(client, LM93_REG_IN_MAX(i));
1007 }
1008
1009 /* temp1 - temp4: values */
1010 for (i = 0; i < 4; i++) {
1011 data->block2[i] =
1012 lm93_read_byte(client, LM93_REG_TEMP(i));
1013 }
1014
1015 /* prochot1 - prochot2: values */
1016 for (i = 0; i < 2; i++) {
1017 data->block4[i].cur =
1018 lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
1019 data->block4[i].avg =
1020 lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
1021 }
1022
1023 /* fan1 - fan4: values & limits */
1024 for (i = 0; i < 4; i++) {
1025 data->block5[i] =
1026 lm93_read_word(client, LM93_REG_FAN(i));
1027 data->block8[i] =
1028 lm93_read_word(client, LM93_REG_FAN_MIN(i));
1029 }
1030
1031 /* pwm control registers */
1032 for (i = 0; i < 2; i++) {
1033 for (j = 0; j < 4; j++) {
1034 data->block9[i][j] =
1035 lm93_read_byte(client, LM93_REG_PWM_CTL(i,j));
1036 }
1037 }
1038
1039 /* alarm values */
1040 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1041 *(ptr + i) =
1042 lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
1043 }
1044
1045 /* auto/pwm (base temp) registers */
1046 for (i = 0; i < 4; i++) {
1047 data->block10.base[i] =
1048 lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
1049 }
1050
1051 /* auto/pwm (offset temp) registers */
1052 for (i = 0; i < 12; i++) {
1053 data->block10.offset[i] =
1054 lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
1055 }
1056
1057 lm93_update_client_common(data, client);
1058 }
1059
1060 /* following are the sysfs callback functions */
1061 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
1062 char *buf)
1063 {
1064 int nr = (to_sensor_dev_attr(attr))->index;
1065
1066 struct lm93_data *data = lm93_update_device(dev);
1067 return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
1068 }
1069
1070 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
1071 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
1072 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
1073 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
1074 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
1075 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
1076 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
1077 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
1078 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
1079 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
1080 static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
1081 static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
1082 static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
1083 static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
1084 static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
1085 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
1086
1087 static ssize_t show_in_min(struct device *dev,
1088 struct device_attribute *attr, char *buf)
1089 {
1090 int nr = (to_sensor_dev_attr(attr))->index;
1091 struct lm93_data *data = lm93_update_device(dev);
1092 int vccp = nr - 6;
1093 long rc, vid;
1094
1095 if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
1096 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1097 rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
1098 }
1099 else {
1100 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min); \
1101 }
1102 return sprintf(buf, "%ld\n", rc); \
1103 }
1104
1105 static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
1106 const char *buf, size_t count)
1107 {
1108 int nr = (to_sensor_dev_attr(attr))->index;
1109 struct i2c_client *client = to_i2c_client(dev);
1110 struct lm93_data *data = i2c_get_clientdata(client);
1111 u32 val = simple_strtoul(buf, NULL, 10);
1112 int vccp = nr - 6;
1113 long vid;
1114
1115 mutex_lock(&data->update_lock);
1116 if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
1117 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1118 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
1119 LM93_IN_REL_TO_REG(val, 0, vid);
1120 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1121 data->vccp_limits[vccp]);
1122 }
1123 else {
1124 data->block7[nr].min = LM93_IN_TO_REG(nr,val);
1125 lm93_write_byte(client, LM93_REG_IN_MIN(nr),
1126 data->block7[nr].min);
1127 }
1128 mutex_unlock(&data->update_lock);
1129 return count;
1130 }
1131
1132 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1133 show_in_min, store_in_min, 0);
1134 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1135 show_in_min, store_in_min, 1);
1136 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1137 show_in_min, store_in_min, 2);
1138 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1139 show_in_min, store_in_min, 3);
1140 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1141 show_in_min, store_in_min, 4);
1142 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1143 show_in_min, store_in_min, 5);
1144 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1145 show_in_min, store_in_min, 6);
1146 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1147 show_in_min, store_in_min, 7);
1148 static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
1149 show_in_min, store_in_min, 8);
1150 static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
1151 show_in_min, store_in_min, 9);
1152 static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
1153 show_in_min, store_in_min, 10);
1154 static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
1155 show_in_min, store_in_min, 11);
1156 static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
1157 show_in_min, store_in_min, 12);
1158 static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
1159 show_in_min, store_in_min, 13);
1160 static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
1161 show_in_min, store_in_min, 14);
1162 static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
1163 show_in_min, store_in_min, 15);
1164
1165 static ssize_t show_in_max(struct device *dev,
1166 struct device_attribute *attr, char *buf)
1167 {
1168 int nr = (to_sensor_dev_attr(attr))->index;
1169 struct lm93_data *data = lm93_update_device(dev);
1170 int vccp = nr - 6;
1171 long rc, vid;
1172
1173 if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
1174 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1175 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp],vid);
1176 }
1177 else {
1178 rc = LM93_IN_FROM_REG(nr,data->block7[nr].max); \
1179 }
1180 return sprintf(buf,"%ld\n",rc); \
1181 }
1182
1183 static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
1184 const char *buf, size_t count)
1185 {
1186 int nr = (to_sensor_dev_attr(attr))->index;
1187 struct i2c_client *client = to_i2c_client(dev);
1188 struct lm93_data *data = i2c_get_clientdata(client);
1189 u32 val = simple_strtoul(buf, NULL, 10);
1190 int vccp = nr - 6;
1191 long vid;
1192
1193 mutex_lock(&data->update_lock);
1194 if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
1195 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1196 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
1197 LM93_IN_REL_TO_REG(val, 1, vid);
1198 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1199 data->vccp_limits[vccp]);
1200 }
1201 else {
1202 data->block7[nr].max = LM93_IN_TO_REG(nr,val);
1203 lm93_write_byte(client, LM93_REG_IN_MAX(nr),
1204 data->block7[nr].max);
1205 }
1206 mutex_unlock(&data->update_lock);
1207 return count;
1208 }
1209
1210 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1211 show_in_max, store_in_max, 0);
1212 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1213 show_in_max, store_in_max, 1);
1214 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1215 show_in_max, store_in_max, 2);
1216 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1217 show_in_max, store_in_max, 3);
1218 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1219 show_in_max, store_in_max, 4);
1220 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1221 show_in_max, store_in_max, 5);
1222 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1223 show_in_max, store_in_max, 6);
1224 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1225 show_in_max, store_in_max, 7);
1226 static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
1227 show_in_max, store_in_max, 8);
1228 static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
1229 show_in_max, store_in_max, 9);
1230 static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
1231 show_in_max, store_in_max, 10);
1232 static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
1233 show_in_max, store_in_max, 11);
1234 static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
1235 show_in_max, store_in_max, 12);
1236 static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
1237 show_in_max, store_in_max, 13);
1238 static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
1239 show_in_max, store_in_max, 14);
1240 static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
1241 show_in_max, store_in_max, 15);
1242
1243 static ssize_t show_temp(struct device *dev,
1244 struct device_attribute *attr, char *buf)
1245 {
1246 int nr = (to_sensor_dev_attr(attr))->index;
1247 struct lm93_data *data = lm93_update_device(dev);
1248 return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block2[nr]));
1249 }
1250
1251 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1252 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1253 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1254
1255 static ssize_t show_temp_min(struct device *dev,
1256 struct device_attribute *attr, char *buf)
1257 {
1258 int nr = (to_sensor_dev_attr(attr))->index;
1259 struct lm93_data *data = lm93_update_device(dev);
1260 return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
1261 }
1262
1263 static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
1264 const char *buf, size_t count)
1265 {
1266 int nr = (to_sensor_dev_attr(attr))->index;
1267 struct i2c_client *client = to_i2c_client(dev);
1268 struct lm93_data *data = i2c_get_clientdata(client);
1269 long val = simple_strtol(buf, NULL, 10);
1270
1271 mutex_lock(&data->update_lock);
1272 data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
1273 lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
1274 mutex_unlock(&data->update_lock);
1275 return count;
1276 }
1277
1278 static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
1279 show_temp_min, store_temp_min, 0);
1280 static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
1281 show_temp_min, store_temp_min, 1);
1282 static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
1283 show_temp_min, store_temp_min, 2);
1284
1285 static ssize_t show_temp_max(struct device *dev,
1286 struct device_attribute *attr, char *buf)
1287 {
1288 int nr = (to_sensor_dev_attr(attr))->index;
1289 struct lm93_data *data = lm93_update_device(dev);
1290 return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
1291 }
1292
1293 static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
1294 const char *buf, size_t count)
1295 {
1296 int nr = (to_sensor_dev_attr(attr))->index;
1297 struct i2c_client *client = to_i2c_client(dev);
1298 struct lm93_data *data = i2c_get_clientdata(client);
1299 long val = simple_strtol(buf, NULL, 10);
1300
1301 mutex_lock(&data->update_lock);
1302 data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
1303 lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
1304 mutex_unlock(&data->update_lock);
1305 return count;
1306 }
1307
1308 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
1309 show_temp_max, store_temp_max, 0);
1310 static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
1311 show_temp_max, store_temp_max, 1);
1312 static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
1313 show_temp_max, store_temp_max, 2);
1314
1315 static ssize_t show_temp_auto_base(struct device *dev,
1316 struct device_attribute *attr, char *buf)
1317 {
1318 int nr = (to_sensor_dev_attr(attr))->index;
1319 struct lm93_data *data = lm93_update_device(dev);
1320 return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block10.base[nr]));
1321 }
1322
1323 static ssize_t store_temp_auto_base(struct device *dev,
1324 struct device_attribute *attr,
1325 const char *buf, size_t count)
1326 {
1327 int nr = (to_sensor_dev_attr(attr))->index;
1328 struct i2c_client *client = to_i2c_client(dev);
1329 struct lm93_data *data = i2c_get_clientdata(client);
1330 long val = simple_strtol(buf, NULL, 10);
1331
1332 mutex_lock(&data->update_lock);
1333 data->block10.base[nr] = LM93_TEMP_TO_REG(val);
1334 lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
1335 mutex_unlock(&data->update_lock);
1336 return count;
1337 }
1338
1339 static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
1340 show_temp_auto_base, store_temp_auto_base, 0);
1341 static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
1342 show_temp_auto_base, store_temp_auto_base, 1);
1343 static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
1344 show_temp_auto_base, store_temp_auto_base, 2);
1345
1346 static ssize_t show_temp_auto_boost(struct device *dev,
1347 struct device_attribute *attr,char *buf)
1348 {
1349 int nr = (to_sensor_dev_attr(attr))->index;
1350 struct lm93_data *data = lm93_update_device(dev);
1351 return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->boost[nr]));
1352 }
1353
1354 static ssize_t store_temp_auto_boost(struct device *dev,
1355 struct device_attribute *attr,
1356 const char *buf, size_t count)
1357 {
1358 int nr = (to_sensor_dev_attr(attr))->index;
1359 struct i2c_client *client = to_i2c_client(dev);
1360 struct lm93_data *data = i2c_get_clientdata(client);
1361 long val = simple_strtol(buf, NULL, 10);
1362
1363 mutex_lock(&data->update_lock);
1364 data->boost[nr] = LM93_TEMP_TO_REG(val);
1365 lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
1366 mutex_unlock(&data->update_lock);
1367 return count;
1368 }
1369
1370 static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
1371 show_temp_auto_boost, store_temp_auto_boost, 0);
1372 static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
1373 show_temp_auto_boost, store_temp_auto_boost, 1);
1374 static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
1375 show_temp_auto_boost, store_temp_auto_boost, 2);
1376
1377 static ssize_t show_temp_auto_boost_hyst(struct device *dev,
1378 struct device_attribute *attr,
1379 char *buf)
1380 {
1381 int nr = (to_sensor_dev_attr(attr))->index;
1382 struct lm93_data *data = lm93_update_device(dev);
1383 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1384 return sprintf(buf,"%d\n",
1385 LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
1386 }
1387
1388 static ssize_t store_temp_auto_boost_hyst(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 u32 val = simple_strtoul(buf, NULL, 10);
1396
1397 mutex_lock(&data->update_lock);
1398 /* force 0.5C/bit mode */
1399 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1400 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1401 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1402 data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
1403 lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
1404 data->boost_hyst[nr/2]);
1405 mutex_unlock(&data->update_lock);
1406 return count;
1407 }
1408
1409 static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
1410 show_temp_auto_boost_hyst,
1411 store_temp_auto_boost_hyst, 0);
1412 static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
1413 show_temp_auto_boost_hyst,
1414 store_temp_auto_boost_hyst, 1);
1415 static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
1416 show_temp_auto_boost_hyst,
1417 store_temp_auto_boost_hyst, 2);
1418
1419 static ssize_t show_temp_auto_offset(struct device *dev,
1420 struct device_attribute *attr, char *buf)
1421 {
1422 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1423 int nr = s_attr->index;
1424 int ofs = s_attr->nr;
1425 struct lm93_data *data = lm93_update_device(dev);
1426 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1427 return sprintf(buf,"%d\n",
1428 LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
1429 nr,mode));
1430 }
1431
1432 static ssize_t store_temp_auto_offset(struct device *dev,
1433 struct device_attribute *attr,
1434 const char *buf, size_t count)
1435 {
1436 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1437 int nr = s_attr->index;
1438 int ofs = s_attr->nr;
1439 struct i2c_client *client = to_i2c_client(dev);
1440 struct lm93_data *data = i2c_get_clientdata(client);
1441 u32 val = simple_strtoul(buf, NULL, 10);
1442
1443 mutex_lock(&data->update_lock);
1444 /* force 0.5C/bit mode */
1445 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1446 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1447 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1448 data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
1449 data->block10.offset[ofs], val, nr, 1);
1450 lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
1451 data->block10.offset[ofs]);
1452 mutex_unlock(&data->update_lock);
1453 return count;
1454 }
1455
1456 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
1457 show_temp_auto_offset, store_temp_auto_offset, 0, 0);
1458 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
1459 show_temp_auto_offset, store_temp_auto_offset, 1, 0);
1460 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
1461 show_temp_auto_offset, store_temp_auto_offset, 2, 0);
1462 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
1463 show_temp_auto_offset, store_temp_auto_offset, 3, 0);
1464 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
1465 show_temp_auto_offset, store_temp_auto_offset, 4, 0);
1466 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
1467 show_temp_auto_offset, store_temp_auto_offset, 5, 0);
1468 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
1469 show_temp_auto_offset, store_temp_auto_offset, 6, 0);
1470 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
1471 show_temp_auto_offset, store_temp_auto_offset, 7, 0);
1472 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
1473 show_temp_auto_offset, store_temp_auto_offset, 8, 0);
1474 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
1475 show_temp_auto_offset, store_temp_auto_offset, 9, 0);
1476 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
1477 show_temp_auto_offset, store_temp_auto_offset, 10, 0);
1478 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
1479 show_temp_auto_offset, store_temp_auto_offset, 11, 0);
1480 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
1481 show_temp_auto_offset, store_temp_auto_offset, 0, 1);
1482 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
1483 show_temp_auto_offset, store_temp_auto_offset, 1, 1);
1484 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
1485 show_temp_auto_offset, store_temp_auto_offset, 2, 1);
1486 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
1487 show_temp_auto_offset, store_temp_auto_offset, 3, 1);
1488 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
1489 show_temp_auto_offset, store_temp_auto_offset, 4, 1);
1490 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
1491 show_temp_auto_offset, store_temp_auto_offset, 5, 1);
1492 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
1493 show_temp_auto_offset, store_temp_auto_offset, 6, 1);
1494 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
1495 show_temp_auto_offset, store_temp_auto_offset, 7, 1);
1496 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
1497 show_temp_auto_offset, store_temp_auto_offset, 8, 1);
1498 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
1499 show_temp_auto_offset, store_temp_auto_offset, 9, 1);
1500 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
1501 show_temp_auto_offset, store_temp_auto_offset, 10, 1);
1502 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
1503 show_temp_auto_offset, store_temp_auto_offset, 11, 1);
1504 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
1505 show_temp_auto_offset, store_temp_auto_offset, 0, 2);
1506 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
1507 show_temp_auto_offset, store_temp_auto_offset, 1, 2);
1508 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
1509 show_temp_auto_offset, store_temp_auto_offset, 2, 2);
1510 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
1511 show_temp_auto_offset, store_temp_auto_offset, 3, 2);
1512 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
1513 show_temp_auto_offset, store_temp_auto_offset, 4, 2);
1514 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
1515 show_temp_auto_offset, store_temp_auto_offset, 5, 2);
1516 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
1517 show_temp_auto_offset, store_temp_auto_offset, 6, 2);
1518 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
1519 show_temp_auto_offset, store_temp_auto_offset, 7, 2);
1520 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
1521 show_temp_auto_offset, store_temp_auto_offset, 8, 2);
1522 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
1523 show_temp_auto_offset, store_temp_auto_offset, 9, 2);
1524 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
1525 show_temp_auto_offset, store_temp_auto_offset, 10, 2);
1526 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
1527 show_temp_auto_offset, store_temp_auto_offset, 11, 2);
1528
1529 static ssize_t show_temp_auto_pwm_min(struct device *dev,
1530 struct device_attribute *attr, char *buf)
1531 {
1532 int nr = (to_sensor_dev_attr(attr))->index;
1533 u8 reg, ctl4;
1534 struct lm93_data *data = lm93_update_device(dev);
1535 reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
1536 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1537 return sprintf(buf,"%d\n",LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
1538 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1539 }
1540
1541 static ssize_t store_temp_auto_pwm_min(struct device *dev,
1542 struct device_attribute *attr,
1543 const char *buf, size_t count)
1544 {
1545 int nr = (to_sensor_dev_attr(attr))->index;
1546 struct i2c_client *client = to_i2c_client(dev);
1547 struct lm93_data *data = i2c_get_clientdata(client);
1548 u32 val = simple_strtoul(buf, NULL, 10);
1549 u8 reg, ctl4;
1550
1551 mutex_lock(&data->update_lock);
1552 reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
1553 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
1554 reg = (reg & 0x0f) |
1555 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1556 LM93_PWM_MAP_LO_FREQ :
1557 LM93_PWM_MAP_HI_FREQ) << 4;
1558 data->auto_pwm_min_hyst[nr/2] = reg;
1559 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1560 mutex_unlock(&data->update_lock);
1561 return count;
1562 }
1563
1564 static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
1565 show_temp_auto_pwm_min,
1566 store_temp_auto_pwm_min, 0);
1567 static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
1568 show_temp_auto_pwm_min,
1569 store_temp_auto_pwm_min, 1);
1570 static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
1571 show_temp_auto_pwm_min,
1572 store_temp_auto_pwm_min, 2);
1573
1574 static ssize_t show_temp_auto_offset_hyst(struct device *dev,
1575 struct device_attribute *attr, char *buf)
1576 {
1577 int nr = (to_sensor_dev_attr(attr))->index;
1578 struct lm93_data *data = lm93_update_device(dev);
1579 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1580 return sprintf(buf,"%d\n",LM93_TEMP_OFFSET_FROM_REG(
1581 data->auto_pwm_min_hyst[nr/2], mode));
1582 }
1583
1584 static ssize_t store_temp_auto_offset_hyst(struct device *dev,
1585 struct device_attribute *attr,
1586 const char *buf, size_t count)
1587 {
1588 int nr = (to_sensor_dev_attr(attr))->index;
1589 struct i2c_client *client = to_i2c_client(dev);
1590 struct lm93_data *data = i2c_get_clientdata(client);
1591 u32 val = simple_strtoul(buf, NULL, 10);
1592 u8 reg;
1593
1594 mutex_lock(&data->update_lock);
1595 /* force 0.5C/bit mode */
1596 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1597 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1598 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1599 reg = data->auto_pwm_min_hyst[nr/2];
1600 reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
1601 data->auto_pwm_min_hyst[nr/2] = reg;
1602 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1603 mutex_unlock(&data->update_lock);
1604 return count;
1605 }
1606
1607 static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
1608 show_temp_auto_offset_hyst,
1609 store_temp_auto_offset_hyst, 0);
1610 static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
1611 show_temp_auto_offset_hyst,
1612 store_temp_auto_offset_hyst, 1);
1613 static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
1614 show_temp_auto_offset_hyst,
1615 store_temp_auto_offset_hyst, 2);
1616
1617 static ssize_t show_fan_input(struct device *dev,
1618 struct device_attribute *attr, char *buf)
1619 {
1620 struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
1621 int nr = s_attr->index;
1622 struct lm93_data *data = lm93_update_device(dev);
1623
1624 return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block5[nr]));
1625 }
1626
1627 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
1628 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
1629 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
1630 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
1631
1632 static ssize_t show_fan_min(struct device *dev,
1633 struct device_attribute *attr, char *buf)
1634 {
1635 int nr = (to_sensor_dev_attr(attr))->index;
1636 struct lm93_data *data = lm93_update_device(dev);
1637
1638 return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block8[nr]));
1639 }
1640
1641 static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
1642 const char *buf, size_t count)
1643 {
1644 int nr = (to_sensor_dev_attr(attr))->index;
1645 struct i2c_client *client = to_i2c_client(dev);
1646 struct lm93_data *data = i2c_get_clientdata(client);
1647 u32 val = simple_strtoul(buf, NULL, 10);
1648
1649 mutex_lock(&data->update_lock);
1650 data->block8[nr] = LM93_FAN_TO_REG(val);
1651 lm93_write_word(client,LM93_REG_FAN_MIN(nr),data->block8[nr]);
1652 mutex_unlock(&data->update_lock);
1653 return count;
1654 }
1655
1656 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1657 show_fan_min, store_fan_min, 0);
1658 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1659 show_fan_min, store_fan_min, 1);
1660 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1661 show_fan_min, store_fan_min, 2);
1662 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1663 show_fan_min, store_fan_min, 3);
1664
1665 /* some tedious bit-twiddling here to deal with the register format:
1666
1667 data->sf_tach_to_pwm: (tach to pwm mapping bits)
1668
1669 bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
1670 T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
1671
1672 data->sfc2: (enable bits)
1673
1674 bit | 3 | 2 | 1 | 0
1675 T4 T3 T2 T1
1676 */
1677
1678 static ssize_t show_fan_smart_tach(struct device *dev,
1679 struct device_attribute *attr, char *buf)
1680 {
1681 int nr = (to_sensor_dev_attr(attr))->index;
1682 struct lm93_data *data = lm93_update_device(dev);
1683 long rc = 0;
1684 int mapping;
1685
1686 /* extract the relevant mapping */
1687 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1688
1689 /* if there's a mapping and it's enabled */
1690 if (mapping && ((data->sfc2 >> nr) & 0x01))
1691 rc = mapping;
1692 return sprintf(buf,"%ld\n",rc);
1693 }
1694
1695 /* helper function - must grab data->update_lock before calling
1696 fan is 0-3, indicating fan1-fan4 */
1697 static void lm93_write_fan_smart_tach(struct i2c_client *client,
1698 struct lm93_data *data, int fan, long value)
1699 {
1700 /* insert the new mapping and write it out */
1701 data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1702 data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
1703 data->sf_tach_to_pwm |= value << fan * 2;
1704 lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
1705
1706 /* insert the enable bit and write it out */
1707 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1708 if (value)
1709 data->sfc2 |= 1 << fan;
1710 else
1711 data->sfc2 &= ~(1 << fan);
1712 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1713 }
1714
1715 static ssize_t store_fan_smart_tach(struct device *dev,
1716 struct device_attribute *attr,
1717 const char *buf, size_t count)
1718 {
1719 int nr = (to_sensor_dev_attr(attr))->index;
1720 struct i2c_client *client = to_i2c_client(dev);
1721 struct lm93_data *data = i2c_get_clientdata(client);
1722 u32 val = simple_strtoul(buf, NULL, 10);
1723
1724 mutex_lock(&data->update_lock);
1725 /* sanity test, ignore the write otherwise */
1726 if (0 <= val && val <= 2) {
1727 /* can't enable if pwm freq is 22.5KHz */
1728 if (val) {
1729 u8 ctl4 = lm93_read_byte(client,
1730 LM93_REG_PWM_CTL(val-1,LM93_PWM_CTL4));
1731 if ((ctl4 & 0x07) == 0)
1732 val = 0;
1733 }
1734 lm93_write_fan_smart_tach(client, data, nr, val);
1735 }
1736 mutex_unlock(&data->update_lock);
1737 return count;
1738 }
1739
1740 static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
1741 show_fan_smart_tach, store_fan_smart_tach, 0);
1742 static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
1743 show_fan_smart_tach, store_fan_smart_tach, 1);
1744 static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
1745 show_fan_smart_tach, store_fan_smart_tach, 2);
1746 static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
1747 show_fan_smart_tach, store_fan_smart_tach, 3);
1748
1749 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1750 char *buf)
1751 {
1752 int nr = (to_sensor_dev_attr(attr))->index;
1753 struct lm93_data *data = lm93_update_device(dev);
1754 u8 ctl2, ctl4;
1755 long rc;
1756
1757 ctl2 = data->block9[nr][LM93_PWM_CTL2];
1758 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1759 if (ctl2 & 0x01) /* show user commanded value if enabled */
1760 rc = data->pwm_override[nr];
1761 else /* show present h/w value if manual pwm disabled */
1762 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
1763 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
1764 return sprintf(buf,"%ld\n",rc);
1765 }
1766
1767 static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
1768 const char *buf, size_t count)
1769 {
1770 int nr = (to_sensor_dev_attr(attr))->index;
1771 struct i2c_client *client = to_i2c_client(dev);
1772 struct lm93_data *data = i2c_get_clientdata(client);
1773 u32 val = simple_strtoul(buf, NULL, 10);
1774 u8 ctl2, ctl4;
1775
1776 mutex_lock(&data->update_lock);
1777 ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
1778 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
1779 ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val,(ctl4 & 0x07) ?
1780 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
1781 /* save user commanded value */
1782 data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
1783 (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ :
1784 LM93_PWM_MAP_HI_FREQ);
1785 lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
1786 mutex_unlock(&data->update_lock);
1787 return count;
1788 }
1789
1790 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1791 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1792
1793 static ssize_t show_pwm_enable(struct device *dev,
1794 struct device_attribute *attr, char *buf)
1795 {
1796 int nr = (to_sensor_dev_attr(attr))->index;
1797 struct lm93_data *data = lm93_update_device(dev);
1798 u8 ctl2;
1799 long rc;
1800
1801 ctl2 = data->block9[nr][LM93_PWM_CTL2];
1802 if (ctl2 & 0x01) /* manual override enabled ? */
1803 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1804 else
1805 rc = 2;
1806 return sprintf(buf,"%ld\n",rc);
1807 }
1808
1809 static ssize_t store_pwm_enable(struct device *dev,
1810 struct device_attribute *attr,
1811 const char *buf, size_t count)
1812 {
1813 int nr = (to_sensor_dev_attr(attr))->index;
1814 struct i2c_client *client = to_i2c_client(dev);
1815 struct lm93_data *data = i2c_get_clientdata(client);
1816 u32 val = simple_strtoul(buf, NULL, 10);
1817 u8 ctl2;
1818
1819 mutex_lock(&data->update_lock);
1820 ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
1821
1822 switch (val) {
1823 case 0:
1824 ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1825 break;
1826 case 1: ctl2 |= 0x01; /* enable manual override */
1827 break;
1828 case 2: ctl2 &= ~0x01; /* disable manual override */
1829 break;
1830 default:
1831 mutex_unlock(&data->update_lock);
1832 return -EINVAL;
1833 }
1834
1835 lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
1836 mutex_unlock(&data->update_lock);
1837 return count;
1838 }
1839
1840 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1841 show_pwm_enable, store_pwm_enable, 0);
1842 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1843 show_pwm_enable, store_pwm_enable, 1);
1844
1845 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
1846 char *buf)
1847 {
1848 int nr = (to_sensor_dev_attr(attr))->index;
1849 struct lm93_data *data = lm93_update_device(dev);
1850 u8 ctl4;
1851
1852 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1853 return sprintf(buf,"%d\n",LM93_PWM_FREQ_FROM_REG(ctl4));
1854 }
1855
1856 /* helper function - must grab data->update_lock before calling
1857 pwm is 0-1, indicating pwm1-pwm2
1858 this disables smart tach for all tach channels bound to the given pwm */
1859 static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1860 struct lm93_data *data, int pwm)
1861 {
1862 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1863 int mask;
1864
1865 /* collapse the mapping into a mask of enable bits */
1866 mapping = (mapping >> pwm) & 0x55;
1867 mask = mapping & 0x01;
1868 mask |= (mapping & 0x04) >> 1;
1869 mask |= (mapping & 0x10) >> 2;
1870 mask |= (mapping & 0x40) >> 3;
1871
1872 /* disable smart tach according to the mask */
1873 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1874 data->sfc2 &= ~mask;
1875 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1876 }
1877
1878 static ssize_t store_pwm_freq(struct device *dev,
1879 struct device_attribute *attr,
1880 const char *buf, size_t count)
1881 {
1882 int nr = (to_sensor_dev_attr(attr))->index;
1883 struct i2c_client *client = to_i2c_client(dev);
1884 struct lm93_data *data = i2c_get_clientdata(client);
1885 u32 val = simple_strtoul(buf, NULL, 10);
1886 u8 ctl4;
1887
1888 mutex_lock(&data->update_lock);
1889 ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
1890 ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
1891 data->block9[nr][LM93_PWM_CTL4] = ctl4;
1892 /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
1893 if (!ctl4)
1894 lm93_disable_fan_smart_tach(client, data, nr);
1895 lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4), ctl4);
1896 mutex_unlock(&data->update_lock);
1897 return count;
1898 }
1899
1900 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
1901 show_pwm_freq, store_pwm_freq, 0);
1902 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
1903 show_pwm_freq, store_pwm_freq, 1);
1904
1905 static ssize_t show_pwm_auto_channels(struct device *dev,
1906 struct device_attribute *attr, char *buf)
1907 {
1908 int nr = (to_sensor_dev_attr(attr))->index;
1909 struct lm93_data *data = lm93_update_device(dev);
1910 return sprintf(buf,"%d\n",data->block9[nr][LM93_PWM_CTL1]);
1911 }
1912
1913 static ssize_t store_pwm_auto_channels(struct device *dev,
1914 struct device_attribute *attr,
1915 const char *buf, size_t count)
1916 {
1917 int nr = (to_sensor_dev_attr(attr))->index;
1918 struct i2c_client *client = to_i2c_client(dev);
1919 struct lm93_data *data = i2c_get_clientdata(client);
1920 u32 val = simple_strtoul(buf, NULL, 10);
1921
1922 mutex_lock(&data->update_lock);
1923 data->block9[nr][LM93_PWM_CTL1] = SENSORS_LIMIT(val, 0, 255);
1924 lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL1),
1925 data->block9[nr][LM93_PWM_CTL1]);
1926 mutex_unlock(&data->update_lock);
1927 return count;
1928 }
1929
1930 static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
1931 show_pwm_auto_channels, store_pwm_auto_channels, 0);
1932 static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
1933 show_pwm_auto_channels, store_pwm_auto_channels, 1);
1934
1935 static ssize_t show_pwm_auto_spinup_min(struct device *dev,
1936 struct device_attribute *attr,char *buf)
1937 {
1938 int nr = (to_sensor_dev_attr(attr))->index;
1939 struct lm93_data *data = lm93_update_device(dev);
1940 u8 ctl3, ctl4;
1941
1942 ctl3 = data->block9[nr][LM93_PWM_CTL3];
1943 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1944 return sprintf(buf,"%d\n",
1945 LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
1946 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1947 }
1948
1949 static ssize_t store_pwm_auto_spinup_min(struct device *dev,
1950 struct device_attribute *attr,
1951 const char *buf, size_t count)
1952 {
1953 int nr = (to_sensor_dev_attr(attr))->index;
1954 struct i2c_client *client = to_i2c_client(dev);
1955 struct lm93_data *data = i2c_get_clientdata(client);
1956 u32 val = simple_strtoul(buf, NULL, 10);
1957 u8 ctl3, ctl4;
1958
1959 mutex_lock(&data->update_lock);
1960 ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
1961 ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1962 ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1963 LM93_PWM_MAP_LO_FREQ :
1964 LM93_PWM_MAP_HI_FREQ);
1965 data->block9[nr][LM93_PWM_CTL3] = ctl3;
1966 lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
1967 mutex_unlock(&data->update_lock);
1968 return count;
1969 }
1970
1971 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
1972 show_pwm_auto_spinup_min,
1973 store_pwm_auto_spinup_min, 0);
1974 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
1975 show_pwm_auto_spinup_min,
1976 store_pwm_auto_spinup_min, 1);
1977
1978 static ssize_t show_pwm_auto_spinup_time(struct device *dev,
1979 struct device_attribute *attr, char *buf)
1980 {
1981 int nr = (to_sensor_dev_attr(attr))->index;
1982 struct lm93_data *data = lm93_update_device(dev);
1983 return sprintf(buf,"%d\n",LM93_SPINUP_TIME_FROM_REG(
1984 data->block9[nr][LM93_PWM_CTL3]));
1985 }
1986
1987 static ssize_t store_pwm_auto_spinup_time(struct device *dev,
1988 struct device_attribute *attr,
1989 const char *buf, size_t count)
1990 {
1991 int nr = (to_sensor_dev_attr(attr))->index;
1992 struct i2c_client *client = to_i2c_client(dev);
1993 struct lm93_data *data = i2c_get_clientdata(client);
1994 u32 val = simple_strtoul(buf, NULL, 10);
1995 u8 ctl3;
1996
1997 mutex_lock(&data->update_lock);
1998 ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
1999 ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
2000 data->block9[nr][LM93_PWM_CTL3] = ctl3;
2001 lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2002 mutex_unlock(&data->update_lock);
2003 return count;
2004 }
2005
2006 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
2007 show_pwm_auto_spinup_time,
2008 store_pwm_auto_spinup_time, 0);
2009 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
2010 show_pwm_auto_spinup_time,
2011 store_pwm_auto_spinup_time, 1);
2012
2013 static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
2014 struct device_attribute *attr, char *buf)
2015 {
2016 struct lm93_data *data = lm93_update_device(dev);
2017 return sprintf(buf,"%d\n",
2018 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
2019 }
2020
2021 static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
2022 struct device_attribute *attr,
2023 const char *buf, size_t count)
2024 {
2025 struct i2c_client *client = to_i2c_client(dev);
2026 struct lm93_data *data = i2c_get_clientdata(client);
2027 u32 val = simple_strtoul(buf, NULL, 10);
2028 u8 ramp;
2029
2030 mutex_lock(&data->update_lock);
2031 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2032 ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
2033 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2034 mutex_unlock(&data->update_lock);
2035 return count;
2036 }
2037
2038 static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
2039 show_pwm_auto_prochot_ramp,
2040 store_pwm_auto_prochot_ramp);
2041
2042 static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
2043 struct device_attribute *attr, char *buf)
2044 {
2045 struct lm93_data *data = lm93_update_device(dev);
2046 return sprintf(buf,"%d\n",
2047 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
2048 }
2049
2050 static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
2051 struct device_attribute *attr,
2052 const char *buf, size_t count)
2053 {
2054 struct i2c_client *client = to_i2c_client(dev);
2055 struct lm93_data *data = i2c_get_clientdata(client);
2056 u32 val = simple_strtoul(buf, NULL, 10);
2057 u8 ramp;
2058
2059 mutex_lock(&data->update_lock);
2060 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2061 ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
2062 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2063 mutex_unlock(&data->update_lock);
2064 return 0;
2065 }
2066
2067 static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
2068 show_pwm_auto_vrdhot_ramp,
2069 store_pwm_auto_vrdhot_ramp);
2070
2071 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
2072 char *buf)
2073 {
2074 int nr = (to_sensor_dev_attr(attr))->index;
2075 struct lm93_data *data = lm93_update_device(dev);
2076 return sprintf(buf,"%d\n",LM93_VID_FROM_REG(data->vid[nr]));
2077 }
2078
2079 static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0);
2080 static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1);
2081
2082 static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
2083 char *buf)
2084 {
2085 int nr = (to_sensor_dev_attr(attr))->index;
2086 struct lm93_data *data = lm93_update_device(dev);
2087 return sprintf(buf,"%d\n",data->block4[nr].cur);
2088 }
2089
2090 static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
2091 static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
2092
2093 static ssize_t show_prochot_avg(struct device *dev,
2094 struct device_attribute *attr, char *buf)
2095 {
2096 int nr = (to_sensor_dev_attr(attr))->index;
2097 struct lm93_data *data = lm93_update_device(dev);
2098 return sprintf(buf,"%d\n",data->block4[nr].avg);
2099 }
2100
2101 static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
2102 static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
2103
2104 static ssize_t show_prochot_max(struct device *dev,
2105 struct device_attribute *attr, char *buf)
2106 {
2107 int nr = (to_sensor_dev_attr(attr))->index;
2108 struct lm93_data *data = lm93_update_device(dev);
2109 return sprintf(buf,"%d\n",data->prochot_max[nr]);
2110 }
2111
2112 static ssize_t store_prochot_max(struct device *dev,
2113 struct device_attribute *attr,
2114 const char *buf, size_t count)
2115 {
2116 int nr = (to_sensor_dev_attr(attr))->index;
2117 struct i2c_client *client = to_i2c_client(dev);
2118 struct lm93_data *data = i2c_get_clientdata(client);
2119 u32 val = simple_strtoul(buf, NULL, 10);
2120
2121 mutex_lock(&data->update_lock);
2122 data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
2123 lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
2124 data->prochot_max[nr]);
2125 mutex_unlock(&data->update_lock);
2126 return count;
2127 }
2128
2129 static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
2130 show_prochot_max, store_prochot_max, 0);
2131 static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
2132 show_prochot_max, store_prochot_max, 1);
2133
2134 static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2135
2136 static ssize_t show_prochot_override(struct device *dev,
2137 struct device_attribute *attr, char *buf)
2138 {
2139 int nr = (to_sensor_dev_attr(attr))->index;
2140 struct lm93_data *data = lm93_update_device(dev);
2141 return sprintf(buf,"%d\n",
2142 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
2143 }
2144
2145 static ssize_t store_prochot_override(struct device *dev,
2146 struct device_attribute *attr,
2147 const char *buf, size_t count)
2148 {
2149 int nr = (to_sensor_dev_attr(attr))->index;
2150 struct i2c_client *client = to_i2c_client(dev);
2151 struct lm93_data *data = i2c_get_clientdata(client);
2152 u32 val = simple_strtoul(buf, NULL, 10);
2153
2154 mutex_lock(&data->update_lock);
2155 if (val)
2156 data->prochot_override |= prochot_override_mask[nr];
2157 else
2158 data->prochot_override &= (~prochot_override_mask[nr]);
2159 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2160 data->prochot_override);
2161 mutex_unlock(&data->update_lock);
2162 return count;
2163 }
2164
2165 static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
2166 show_prochot_override, store_prochot_override, 0);
2167 static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
2168 show_prochot_override, store_prochot_override, 1);
2169
2170 static ssize_t show_prochot_interval(struct device *dev,
2171 struct device_attribute *attr, char *buf)
2172 {
2173 int nr = (to_sensor_dev_attr(attr))->index;
2174 struct lm93_data *data = lm93_update_device(dev);
2175 u8 tmp;
2176 if (nr==1)
2177 tmp = (data->prochot_interval & 0xf0) >> 4;
2178 else
2179 tmp = data->prochot_interval & 0x0f;
2180 return sprintf(buf,"%d\n",LM93_INTERVAL_FROM_REG(tmp));
2181 }
2182
2183 static ssize_t store_prochot_interval(struct device *dev,
2184 struct device_attribute *attr,
2185 const char *buf, size_t count)
2186 {
2187 int nr = (to_sensor_dev_attr(attr))->index;
2188 struct i2c_client *client = to_i2c_client(dev);
2189 struct lm93_data *data = i2c_get_clientdata(client);
2190 u32 val = simple_strtoul(buf, NULL, 10);
2191 u8 tmp;
2192
2193 mutex_lock(&data->update_lock);
2194 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2195 if (nr==1)
2196 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
2197 else
2198 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
2199 data->prochot_interval = tmp;
2200 lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
2201 mutex_unlock(&data->update_lock);
2202 return count;
2203 }
2204
2205 static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
2206 show_prochot_interval, store_prochot_interval, 0);
2207 static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
2208 show_prochot_interval, store_prochot_interval, 1);
2209
2210 static ssize_t show_prochot_override_duty_cycle(struct device *dev,
2211 struct device_attribute *attr,
2212 char *buf)
2213 {
2214 struct lm93_data *data = lm93_update_device(dev);
2215 return sprintf(buf,"%d\n",data->prochot_override & 0x0f);
2216 }
2217
2218 static ssize_t store_prochot_override_duty_cycle(struct device *dev,
2219 struct device_attribute *attr,
2220 const char *buf, size_t count)
2221 {
2222 struct i2c_client *client = to_i2c_client(dev);
2223 struct lm93_data *data = i2c_get_clientdata(client);
2224 u32 val = simple_strtoul(buf, NULL, 10);
2225
2226 mutex_lock(&data->update_lock);
2227 data->prochot_override = (data->prochot_override & 0xf0) |
2228 SENSORS_LIMIT(val, 0, 15);
2229 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2230 data->prochot_override);
2231 mutex_unlock(&data->update_lock);
2232 return count;
2233 }
2234
2235 static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
2236 show_prochot_override_duty_cycle,
2237 store_prochot_override_duty_cycle);
2238
2239 static ssize_t show_prochot_short(struct device *dev,
2240 struct device_attribute *attr, char *buf)
2241 {
2242 struct lm93_data *data = lm93_update_device(dev);
2243 return sprintf(buf,"%d\n",(data->config & 0x10) ? 1 : 0);
2244 }
2245
2246 static ssize_t store_prochot_short(struct device *dev,
2247 struct device_attribute *attr,
2248 const char *buf, size_t count)
2249 {
2250 struct i2c_client *client = to_i2c_client(dev);
2251 struct lm93_data *data = i2c_get_clientdata(client);
2252 u32 val = simple_strtoul(buf, NULL, 10);
2253
2254 mutex_lock(&data->update_lock);
2255 if (val)
2256 data->config |= 0x10;
2257 else
2258 data->config &= ~0x10;
2259 lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2260 mutex_unlock(&data->update_lock);
2261 return count;
2262 }
2263
2264 static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
2265 show_prochot_short, store_prochot_short);
2266
2267 static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
2268 char *buf)
2269 {
2270 int nr = (to_sensor_dev_attr(attr))->index;
2271 struct lm93_data *data = lm93_update_device(dev);
2272 return sprintf(buf,"%d\n",
2273 data->block1.host_status_1 & (1 << (nr+4)) ? 1 : 0);
2274 }
2275
2276 static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
2277 static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
2278
2279 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
2280 char *buf)
2281 {
2282 struct lm93_data *data = lm93_update_device(dev);
2283 return sprintf(buf,"%d\n",LM93_GPI_FROM_REG(data->gpi));
2284 }
2285
2286 static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
2287
2288 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
2289 char *buf)
2290 {
2291 struct lm93_data *data = lm93_update_device(dev);
2292 return sprintf(buf,"%d\n",LM93_ALARMS_FROM_REG(data->block1));
2293 }
2294
2295 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
2296
2297 static struct attribute *lm93_attrs[] = {
2298 &sensor_dev_attr_in1_input.dev_attr.attr,
2299 &sensor_dev_attr_in2_input.dev_attr.attr,
2300 &sensor_dev_attr_in3_input.dev_attr.attr,
2301 &sensor_dev_attr_in4_input.dev_attr.attr,
2302 &sensor_dev_attr_in5_input.dev_attr.attr,
2303 &sensor_dev_attr_in6_input.dev_attr.attr,
2304 &sensor_dev_attr_in7_input.dev_attr.attr,
2305 &sensor_dev_attr_in8_input.dev_attr.attr,
2306 &sensor_dev_attr_in9_input.dev_attr.attr,
2307 &sensor_dev_attr_in10_input.dev_attr.attr,
2308 &sensor_dev_attr_in11_input.dev_attr.attr,
2309 &sensor_dev_attr_in12_input.dev_attr.attr,
2310 &sensor_dev_attr_in13_input.dev_attr.attr,
2311 &sensor_dev_attr_in14_input.dev_attr.attr,
2312 &sensor_dev_attr_in15_input.dev_attr.attr,
2313 &sensor_dev_attr_in16_input.dev_attr.attr,
2314 &sensor_dev_attr_in1_min.dev_attr.attr,
2315 &sensor_dev_attr_in2_min.dev_attr.attr,
2316 &sensor_dev_attr_in3_min.dev_attr.attr,
2317 &sensor_dev_attr_in4_min.dev_attr.attr,
2318 &sensor_dev_attr_in5_min.dev_attr.attr,
2319 &sensor_dev_attr_in6_min.dev_attr.attr,
2320 &sensor_dev_attr_in7_min.dev_attr.attr,
2321 &sensor_dev_attr_in8_min.dev_attr.attr,
2322 &sensor_dev_attr_in9_min.dev_attr.attr,
2323 &sensor_dev_attr_in10_min.dev_attr.attr,
2324 &sensor_dev_attr_in11_min.dev_attr.attr,
2325 &sensor_dev_attr_in12_min.dev_attr.attr,
2326 &sensor_dev_attr_in13_min.dev_attr.attr,
2327 &sensor_dev_attr_in14_min.dev_attr.attr,
2328 &sensor_dev_attr_in15_min.dev_attr.attr,
2329 &sensor_dev_attr_in16_min.dev_attr.attr,
2330 &sensor_dev_attr_in1_max.dev_attr.attr,
2331 &sensor_dev_attr_in2_max.dev_attr.attr,
2332 &sensor_dev_attr_in3_max.dev_attr.attr,
2333 &sensor_dev_attr_in4_max.dev_attr.attr,
2334 &sensor_dev_attr_in5_max.dev_attr.attr,
2335 &sensor_dev_attr_in6_max.dev_attr.attr,
2336 &sensor_dev_attr_in7_max.dev_attr.attr,
2337 &sensor_dev_attr_in8_max.dev_attr.attr,
2338 &sensor_dev_attr_in9_max.dev_attr.attr,
2339 &sensor_dev_attr_in10_max.dev_attr.attr,
2340 &sensor_dev_attr_in11_max.dev_attr.attr,
2341 &sensor_dev_attr_in12_max.dev_attr.attr,
2342 &sensor_dev_attr_in13_max.dev_attr.attr,
2343 &sensor_dev_attr_in14_max.dev_attr.attr,
2344 &sensor_dev_attr_in15_max.dev_attr.attr,
2345 &sensor_dev_attr_in16_max.dev_attr.attr,
2346 &sensor_dev_attr_temp1_input.dev_attr.attr,
2347 &sensor_dev_attr_temp2_input.dev_attr.attr,
2348 &sensor_dev_attr_temp3_input.dev_attr.attr,
2349 &sensor_dev_attr_temp1_min.dev_attr.attr,
2350 &sensor_dev_attr_temp2_min.dev_attr.attr,
2351 &sensor_dev_attr_temp3_min.dev_attr.attr,
2352 &sensor_dev_attr_temp1_max.dev_attr.attr,
2353 &sensor_dev_attr_temp2_max.dev_attr.attr,
2354 &sensor_dev_attr_temp3_max.dev_attr.attr,
2355 &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
2356 &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
2357 &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
2358 &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
2359 &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
2360 &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
2361 &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
2362 &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
2363 &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
2364 &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
2365 &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
2366 &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
2367 &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
2368 &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
2369 &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
2370 &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
2371 &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
2372 &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
2373 &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
2374 &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
2375 &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
2376 &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
2377 &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
2378 &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
2379 &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
2380 &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
2381 &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
2382 &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
2383 &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
2384 &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
2385 &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
2386 &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
2387 &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
2388 &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
2389 &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
2390 &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
2391 &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
2392 &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
2393 &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
2394 &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
2395 &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
2396 &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
2397 &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
2398 &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
2399 &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
2400 &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
2401 &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
2402 &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
2403 &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
2404 &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
2405 &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
2406 &sensor_dev_attr_fan1_input.dev_attr.attr,
2407 &sensor_dev_attr_fan2_input.dev_attr.attr,
2408 &sensor_dev_attr_fan3_input.dev_attr.attr,
2409 &sensor_dev_attr_fan4_input.dev_attr.attr,
2410 &sensor_dev_attr_fan1_min.dev_attr.attr,
2411 &sensor_dev_attr_fan2_min.dev_attr.attr,
2412 &sensor_dev_attr_fan3_min.dev_attr.attr,
2413 &sensor_dev_attr_fan4_min.dev_attr.attr,
2414 &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
2415 &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
2416 &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
2417 &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
2418 &sensor_dev_attr_pwm1.dev_attr.attr,
2419 &sensor_dev_attr_pwm2.dev_attr.attr,
2420 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2421 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2422 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
2423 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
2424 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
2425 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
2426 &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
2427 &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
2428 &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
2429 &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
2430 &dev_attr_pwm_auto_prochot_ramp.attr,
2431 &dev_attr_pwm_auto_vrdhot_ramp.attr,
2432 &sensor_dev_attr_cpu0_vid.dev_attr.attr,
2433 &sensor_dev_attr_cpu1_vid.dev_attr.attr,
2434 &sensor_dev_attr_prochot1.dev_attr.attr,
2435 &sensor_dev_attr_prochot2.dev_attr.attr,
2436 &sensor_dev_attr_prochot1_avg.dev_attr.attr,
2437 &sensor_dev_attr_prochot2_avg.dev_attr.attr,
2438 &sensor_dev_attr_prochot1_max.dev_attr.attr,
2439 &sensor_dev_attr_prochot2_max.dev_attr.attr,
2440 &sensor_dev_attr_prochot1_override.dev_attr.attr,
2441 &sensor_dev_attr_prochot2_override.dev_attr.attr,
2442 &sensor_dev_attr_prochot1_interval.dev_attr.attr,
2443 &sensor_dev_attr_prochot2_interval.dev_attr.attr,
2444 &dev_attr_prochot_override_duty_cycle.attr,
2445 &dev_attr_prochot_short.attr,
2446 &sensor_dev_attr_vrdhot1.dev_attr.attr,
2447 &sensor_dev_attr_vrdhot2.dev_attr.attr,
2448 &dev_attr_gpio.attr,
2449 &dev_attr_alarms.attr,
2450 NULL
2451 };
2452
2453 static struct attribute_group lm93_attr_grp = {
2454 .attrs = lm93_attrs,
2455 };
2456
2457 static void lm93_init_client(struct i2c_client *client)
2458 {
2459 int i;
2460 u8 reg;
2461
2462 /* configure VID pin input thresholds */
2463 reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
2464 lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
2465 reg | (vid_agtl ? 0x03 : 0x00));
2466
2467 if (init) {
2468 /* enable #ALERT pin */
2469 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2470 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
2471
2472 /* enable ASF mode for BMC status registers */
2473 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
2474 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
2475
2476 /* set sleep state to S0 */
2477 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2478
2479 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2480 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
2481 reg &= ~0x03;
2482 reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
2483 reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
2484 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
2485 }
2486
2487 /* start monitoring */
2488 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2489 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2490
2491 /* spin until ready */
2492 for (i=0; i<20; i++) {
2493 msleep(10);
2494 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2495 return;
2496 }
2497
2498 dev_warn(&client->dev,"timed out waiting for sensor "
2499 "chip to signal ready!\n");
2500 }
2501
2502 /* Return 0 if detection is successful, -ENODEV otherwise */
2503 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2504 {
2505 struct i2c_adapter *adapter = client->adapter;
2506 int mfr, ver;
2507
2508 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2509 return -ENODEV;
2510
2511 /* detection */
2512 mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2513 if (mfr != 0x01) {
2514 dev_dbg(&adapter->dev,
2515 "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2516 return -ENODEV;
2517 }
2518
2519 ver = lm93_read_byte(client, LM93_REG_VER);
2520 if (ver != LM93_MFR_ID && ver != LM93_MFR_ID_PROTOTYPE) {
2521 dev_dbg(&adapter->dev,
2522 "detect failed, bad version id 0x%02x!\n", ver);
2523 return -ENODEV;
2524 }
2525
2526 strlcpy(info->type, "lm93", I2C_NAME_SIZE);
2527 dev_dbg(&adapter->dev,"loading %s at %d,0x%02x\n",
2528 client->name, i2c_adapter_id(client->adapter),
2529 client->addr);
2530
2531 return 0;
2532 }
2533
2534 static int lm93_probe(struct i2c_client *client,
2535 const struct i2c_device_id *id)
2536 {
2537 struct lm93_data *data;
2538 int err, func;
2539 void (*update)(struct lm93_data *, struct i2c_client *);
2540
2541 /* choose update routine based on bus capabilities */
2542 func = i2c_get_functionality(client->adapter);
2543 if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
2544 (!disable_block)) {
2545 dev_dbg(&client->dev, "using SMBus block data transactions\n");
2546 update = lm93_update_client_full;
2547 } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
2548 dev_dbg(&client->dev, "disabled SMBus block data "
2549 "transactions\n");
2550 update = lm93_update_client_min;
2551 } else {
2552 dev_dbg(&client->dev, "detect failed, "
2553 "smbus byte and/or word data not supported!\n");
2554 err = -ENODEV;
2555 goto err_out;
2556 }
2557
2558 data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL);
2559 if (!data) {
2560 dev_dbg(&client->dev, "out of memory!\n");
2561 err = -ENOMEM;
2562 goto err_out;
2563 }
2564 i2c_set_clientdata(client, data);
2565
2566 /* housekeeping */
2567 data->valid = 0;
2568 data->update = update;
2569 mutex_init(&data->update_lock);
2570
2571 /* initialize the chip */
2572 lm93_init_client(client);
2573
2574 err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
2575 if (err)
2576 goto err_free;
2577
2578 /* Register hwmon driver class */
2579 data->hwmon_dev = hwmon_device_register(&client->dev);
2580 if ( !IS_ERR(data->hwmon_dev))
2581 return 0;
2582
2583 err = PTR_ERR(data->hwmon_dev);
2584 dev_err(&client->dev, "error registering hwmon device.\n");
2585 sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2586 err_free:
2587 kfree(data);
2588 err_out:
2589 return err;
2590 }
2591
2592 static int lm93_remove(struct i2c_client *client)
2593 {
2594 struct lm93_data *data = i2c_get_clientdata(client);
2595
2596 hwmon_device_unregister(data->hwmon_dev);
2597 sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2598
2599 kfree(data);
2600 return 0;
2601 }
2602
2603 static const struct i2c_device_id lm93_id[] = {
2604 { "lm93", 0 },
2605 { }
2606 };
2607 MODULE_DEVICE_TABLE(i2c, lm93_id);
2608
2609 static struct i2c_driver lm93_driver = {
2610 .class = I2C_CLASS_HWMON,
2611 .driver = {
2612 .name = "lm93",
2613 },
2614 .probe = lm93_probe,
2615 .remove = lm93_remove,
2616 .id_table = lm93_id,
2617 .detect = lm93_detect,
2618 .address_list = normal_i2c,
2619 };
2620
2621 static int __init lm93_init(void)
2622 {
2623 return i2c_add_driver(&lm93_driver);
2624 }
2625
2626 static void __exit lm93_exit(void)
2627 {
2628 i2c_del_driver(&lm93_driver);
2629 }
2630
2631 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
2632 "Hans J. Koch <hjk@linutronix.de");
2633 MODULE_DESCRIPTION("LM93 driver");
2634 MODULE_LICENSE("GPL");
2635
2636 module_init(lm93_init);
2637 module_exit(lm93_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree