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1 | /* |
2 | * asc7621.c - Part of lm_sensors, Linux kernel modules for hardware monitoring |
3 | * Copyright (c) 2007, 2010 George Joseph <george.joseph@fairview5.com> |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 | */ |
19 | |
20 | #include <linux/module.h> |
21 | #include <linux/init.h> |
22 | #include <linux/slab.h> |
23 | #include <linux/jiffies.h> |
24 | #include <linux/i2c.h> |
25 | #include <linux/hwmon.h> |
26 | #include <linux/hwmon-sysfs.h> |
27 | #include <linux/err.h> |
28 | #include <linux/mutex.h> |
29 | |
30 | /* Addresses to scan */ |
31 | static const unsigned short normal_i2c[] = { |
32 | 0x2c, 0x2d, 0x2e, I2C_CLIENT_END |
33 | }; |
34 | |
35 | enum asc7621_type { |
36 | asc7621, |
37 | asc7621a |
38 | }; |
39 | |
40 | #define INTERVAL_HIGH (HZ + HZ / 2) |
41 | #define INTERVAL_LOW (1 * 60 * HZ) |
42 | #define PRI_NONE 0 |
43 | #define PRI_LOW 1 |
44 | #define PRI_HIGH 2 |
45 | #define FIRST_CHIP asc7621 |
46 | #define LAST_CHIP asc7621a |
47 | |
48 | struct asc7621_chip { |
49 | char *name; |
50 | enum asc7621_type chip_type; |
51 | u8 company_reg; |
52 | u8 company_id; |
53 | u8 verstep_reg; |
54 | u8 verstep_id; |
55 | const unsigned short *addresses; |
56 | }; |
57 | |
58 | static struct asc7621_chip asc7621_chips[] = { |
59 | { |
60 | .name = "asc7621", |
61 | .chip_type = asc7621, |
62 | .company_reg = 0x3e, |
63 | .company_id = 0x61, |
64 | .verstep_reg = 0x3f, |
65 | .verstep_id = 0x6c, |
66 | .addresses = normal_i2c, |
67 | }, |
68 | { |
69 | .name = "asc7621a", |
70 | .chip_type = asc7621a, |
71 | .company_reg = 0x3e, |
72 | .company_id = 0x61, |
73 | .verstep_reg = 0x3f, |
74 | .verstep_id = 0x6d, |
75 | .addresses = normal_i2c, |
76 | }, |
77 | }; |
78 | |
79 | /* |
80 | * Defines the highest register to be used, not the count. |
81 | * The actual count will probably be smaller because of gaps |
82 | * in the implementation (unused register locations). |
83 | * This define will safely set the array size of both the parameter |
84 | * and data arrays. |
85 | * This comes from the data sheet register description table. |
86 | */ |
87 | #define LAST_REGISTER 0xff |
88 | |
89 | struct asc7621_data { |
90 | struct i2c_client client; |
91 | struct device *class_dev; |
92 | struct mutex update_lock; |
93 | int valid; /* !=0 if following fields are valid */ |
94 | unsigned long last_high_reading; /* In jiffies */ |
95 | unsigned long last_low_reading; /* In jiffies */ |
96 | /* |
97 | * Registers we care about occupy the corresponding index |
98 | * in the array. Registers we don't care about are left |
99 | * at 0. |
100 | */ |
101 | u8 reg[LAST_REGISTER + 1]; |
102 | }; |
103 | |
104 | /* |
105 | * Macro to get the parent asc7621_param structure |
106 | * from a sensor_device_attribute passed into the |
107 | * show/store functions. |
108 | */ |
109 | #define to_asc7621_param(_sda) \ |
110 | container_of(_sda, struct asc7621_param, sda) |
111 | |
112 | /* |
113 | * Each parameter to be retrieved needs an asc7621_param structure |
114 | * allocated. It contains the sensor_device_attribute structure |
115 | * and the control info needed to retrieve the value from the register map. |
116 | */ |
117 | struct asc7621_param { |
118 | struct sensor_device_attribute sda; |
119 | u8 priority; |
120 | u8 msb[3]; |
121 | u8 lsb[3]; |
122 | u8 mask[3]; |
123 | u8 shift[3]; |
124 | }; |
125 | |
126 | /* |
127 | * This is the map that ultimately indicates whether we'll be |
128 | * retrieving a register value or not, and at what frequency. |
129 | */ |
130 | static u8 asc7621_register_priorities[255]; |
131 | |
132 | static struct asc7621_data *asc7621_update_device(struct device *dev); |
133 | |
134 | static inline u8 read_byte(struct i2c_client *client, u8 reg) |
135 | { |
136 | int res = i2c_smbus_read_byte_data(client, reg); |
137 | if (res < 0) { |
138 | dev_err(&client->dev, |
139 | "Unable to read from register 0x%02x.\n", reg); |
140 | return 0; |
141 | }; |
142 | return res & 0xff; |
143 | } |
144 | |
145 | static inline int write_byte(struct i2c_client *client, u8 reg, u8 data) |
146 | { |
147 | int res = i2c_smbus_write_byte_data(client, reg, data); |
148 | if (res < 0) { |
149 | dev_err(&client->dev, |
150 | "Unable to write value 0x%02x to register 0x%02x.\n", |
151 | data, reg); |
152 | }; |
153 | return res; |
154 | } |
155 | |
156 | /* |
157 | * Data Handlers |
158 | * Each function handles the formatting, storage |
159 | * and retrieval of like parameters. |
160 | */ |
161 | |
162 | #define SETUP_SHOW_data_param(d, a) \ |
163 | struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ |
164 | struct asc7621_data *data = asc7621_update_device(d); \ |
165 | struct asc7621_param *param = to_asc7621_param(sda) |
166 | |
167 | #define SETUP_STORE_data_param(d, a) \ |
168 | struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ |
169 | struct i2c_client *client = to_i2c_client(d); \ |
170 | struct asc7621_data *data = i2c_get_clientdata(client); \ |
171 | struct asc7621_param *param = to_asc7621_param(sda) |
172 | |
173 | /* |
174 | * u8 is just what it sounds like...an unsigned byte with no |
175 | * special formatting. |
176 | */ |
177 | static ssize_t show_u8(struct device *dev, struct device_attribute *attr, |
178 | char *buf) |
179 | { |
180 | SETUP_SHOW_data_param(dev, attr); |
181 | |
182 | return sprintf(buf, "%u\n", data->reg[param->msb[0]]); |
183 | } |
184 | |
185 | static ssize_t store_u8(struct device *dev, struct device_attribute *attr, |
186 | const char *buf, size_t count) |
187 | { |
188 | SETUP_STORE_data_param(dev, attr); |
189 | long reqval; |
190 | |
191 | if (kstrtol(buf, 10, &reqval)) |
192 | return -EINVAL; |
193 | |
194 | reqval = clamp_val(reqval, 0, 255); |
195 | |
196 | mutex_lock(&data->update_lock); |
197 | data->reg[param->msb[0]] = reqval; |
198 | write_byte(client, param->msb[0], reqval); |
199 | mutex_unlock(&data->update_lock); |
200 | return count; |
201 | } |
202 | |
203 | /* |
204 | * Many of the config values occupy only a few bits of a register. |
205 | */ |
206 | static ssize_t show_bitmask(struct device *dev, |
207 | struct device_attribute *attr, char *buf) |
208 | { |
209 | SETUP_SHOW_data_param(dev, attr); |
210 | |
211 | return sprintf(buf, "%u\n", |
212 | (data->reg[param->msb[0]] >> param-> |
213 | shift[0]) & param->mask[0]); |
214 | } |
215 | |
216 | static ssize_t store_bitmask(struct device *dev, |
217 | struct device_attribute *attr, |
218 | const char *buf, size_t count) |
219 | { |
220 | SETUP_STORE_data_param(dev, attr); |
221 | long reqval; |
222 | u8 currval; |
223 | |
224 | if (kstrtol(buf, 10, &reqval)) |
225 | return -EINVAL; |
226 | |
227 | reqval = clamp_val(reqval, 0, param->mask[0]); |
228 | |
229 | reqval = (reqval & param->mask[0]) << param->shift[0]; |
230 | |
231 | mutex_lock(&data->update_lock); |
232 | currval = read_byte(client, param->msb[0]); |
233 | reqval |= (currval & ~(param->mask[0] << param->shift[0])); |
234 | data->reg[param->msb[0]] = reqval; |
235 | write_byte(client, param->msb[0], reqval); |
236 | mutex_unlock(&data->update_lock); |
237 | return count; |
238 | } |
239 | |
240 | /* |
241 | * 16 bit fan rpm values |
242 | * reported by the device as the number of 11.111us periods (90khz) |
243 | * between full fan rotations. Therefore... |
244 | * RPM = (90000 * 60) / register value |
245 | */ |
246 | static ssize_t show_fan16(struct device *dev, |
247 | struct device_attribute *attr, char *buf) |
248 | { |
249 | SETUP_SHOW_data_param(dev, attr); |
250 | u16 regval; |
251 | |
252 | mutex_lock(&data->update_lock); |
253 | regval = (data->reg[param->msb[0]] << 8) | data->reg[param->lsb[0]]; |
254 | mutex_unlock(&data->update_lock); |
255 | |
256 | return sprintf(buf, "%u\n", |
257 | (regval == 0 ? -1 : (regval) == |
258 | 0xffff ? 0 : 5400000 / regval)); |
259 | } |
260 | |
261 | static ssize_t store_fan16(struct device *dev, |
262 | struct device_attribute *attr, const char *buf, |
263 | size_t count) |
264 | { |
265 | SETUP_STORE_data_param(dev, attr); |
266 | long reqval; |
267 | |
268 | if (kstrtol(buf, 10, &reqval)) |
269 | return -EINVAL; |
270 | |
271 | /* |
272 | * If a minimum RPM of zero is requested, then we set the register to |
273 | * 0xffff. This value allows the fan to be stopped completely without |
274 | * generating an alarm. |
275 | */ |
276 | reqval = |
277 | (reqval <= 0 ? 0xffff : clamp_val(5400000 / reqval, 0, 0xfffe)); |
278 | |
279 | mutex_lock(&data->update_lock); |
280 | data->reg[param->msb[0]] = (reqval >> 8) & 0xff; |
281 | data->reg[param->lsb[0]] = reqval & 0xff; |
282 | write_byte(client, param->msb[0], data->reg[param->msb[0]]); |
283 | write_byte(client, param->lsb[0], data->reg[param->lsb[0]]); |
284 | mutex_unlock(&data->update_lock); |
285 | |
286 | return count; |
287 | } |
288 | |
289 | /* |
290 | * Voltages are scaled in the device so that the nominal voltage |
291 | * is 3/4ths of the 0-255 range (i.e. 192). |
292 | * If all voltages are 'normal' then all voltage registers will |
293 | * read 0xC0. |
294 | * |
295 | * The data sheet provides us with the 3/4 scale value for each voltage |
296 | * which is stored in in_scaling. The sda->index parameter value provides |
297 | * the index into in_scaling. |
298 | * |
299 | * NOTE: The chip expects the first 2 inputs be 2.5 and 2.25 volts |
300 | * respectively. That doesn't mean that's what the motherboard provides. :) |
301 | */ |
302 | |
303 | static int asc7621_in_scaling[] = { |
304 | 2500, 2250, 3300, 5000, 12000 |
305 | }; |
306 | |
307 | static ssize_t show_in10(struct device *dev, struct device_attribute *attr, |
308 | char *buf) |
309 | { |
310 | SETUP_SHOW_data_param(dev, attr); |
311 | u16 regval; |
312 | u8 nr = sda->index; |
313 | |
314 | mutex_lock(&data->update_lock); |
315 | regval = (data->reg[param->msb[0]] << 8) | (data->reg[param->lsb[0]]); |
316 | mutex_unlock(&data->update_lock); |
317 | |
318 | /* The LSB value is a 2-bit scaling of the MSB's LSbit value. */ |
319 | regval = (regval >> 6) * asc7621_in_scaling[nr] / (0xc0 << 2); |
320 | |
321 | return sprintf(buf, "%u\n", regval); |
322 | } |
323 | |
324 | /* 8 bit voltage values (the mins and maxs) */ |
325 | static ssize_t show_in8(struct device *dev, struct device_attribute *attr, |
326 | char *buf) |
327 | { |
328 | SETUP_SHOW_data_param(dev, attr); |
329 | u8 nr = sda->index; |
330 | |
331 | return sprintf(buf, "%u\n", |
332 | ((data->reg[param->msb[0]] * |
333 | asc7621_in_scaling[nr]) / 0xc0)); |
334 | } |
335 | |
336 | static ssize_t store_in8(struct device *dev, struct device_attribute *attr, |
337 | const char *buf, size_t count) |
338 | { |
339 | SETUP_STORE_data_param(dev, attr); |
340 | long reqval; |
341 | u8 nr = sda->index; |
342 | |
343 | if (kstrtol(buf, 10, &reqval)) |
344 | return -EINVAL; |
345 | |
346 | reqval = clamp_val(reqval, 0, 0xffff); |
347 | |
348 | reqval = reqval * 0xc0 / asc7621_in_scaling[nr]; |
349 | |
350 | reqval = clamp_val(reqval, 0, 0xff); |
351 | |
352 | mutex_lock(&data->update_lock); |
353 | data->reg[param->msb[0]] = reqval; |
354 | write_byte(client, param->msb[0], reqval); |
355 | mutex_unlock(&data->update_lock); |
356 | |
357 | return count; |
358 | } |
359 | |
360 | static ssize_t show_temp8(struct device *dev, |
361 | struct device_attribute *attr, char *buf) |
362 | { |
363 | SETUP_SHOW_data_param(dev, attr); |
364 | |
365 | return sprintf(buf, "%d\n", ((s8) data->reg[param->msb[0]]) * 1000); |
366 | } |
367 | |
368 | static ssize_t store_temp8(struct device *dev, |
369 | struct device_attribute *attr, const char *buf, |
370 | size_t count) |
371 | { |
372 | SETUP_STORE_data_param(dev, attr); |
373 | long reqval; |
374 | s8 temp; |
375 | |
376 | if (kstrtol(buf, 10, &reqval)) |
377 | return -EINVAL; |
378 | |
379 | reqval = clamp_val(reqval, -127000, 127000); |
380 | |
381 | temp = reqval / 1000; |
382 | |
383 | mutex_lock(&data->update_lock); |
384 | data->reg[param->msb[0]] = temp; |
385 | write_byte(client, param->msb[0], temp); |
386 | mutex_unlock(&data->update_lock); |
387 | return count; |
388 | } |
389 | |
390 | /* |
391 | * Temperatures that occupy 2 bytes always have the whole |
392 | * number of degrees in the MSB with some part of the LSB |
393 | * indicating fractional degrees. |
394 | */ |
395 | |
396 | /* mmmmmmmm.llxxxxxx */ |
397 | static ssize_t show_temp10(struct device *dev, |
398 | struct device_attribute *attr, char *buf) |
399 | { |
400 | SETUP_SHOW_data_param(dev, attr); |
401 | u8 msb, lsb; |
402 | int temp; |
403 | |
404 | mutex_lock(&data->update_lock); |
405 | msb = data->reg[param->msb[0]]; |
406 | lsb = (data->reg[param->lsb[0]] >> 6) & 0x03; |
407 | temp = (((s8) msb) * 1000) + (lsb * 250); |
408 | mutex_unlock(&data->update_lock); |
409 | |
410 | return sprintf(buf, "%d\n", temp); |
411 | } |
412 | |
413 | /* mmmmmm.ll */ |
414 | static ssize_t show_temp62(struct device *dev, |
415 | struct device_attribute *attr, char *buf) |
416 | { |
417 | SETUP_SHOW_data_param(dev, attr); |
418 | u8 regval = data->reg[param->msb[0]]; |
419 | int temp = ((s8) (regval & 0xfc) * 1000) + ((regval & 0x03) * 250); |
420 | |
421 | return sprintf(buf, "%d\n", temp); |
422 | } |
423 | |
424 | static ssize_t store_temp62(struct device *dev, |
425 | struct device_attribute *attr, const char *buf, |
426 | size_t count) |
427 | { |
428 | SETUP_STORE_data_param(dev, attr); |
429 | long reqval, i, f; |
430 | s8 temp; |
431 | |
432 | if (kstrtol(buf, 10, &reqval)) |
433 | return -EINVAL; |
434 | |
435 | reqval = clamp_val(reqval, -32000, 31750); |
436 | i = reqval / 1000; |
437 | f = reqval - (i * 1000); |
438 | temp = i << 2; |
439 | temp |= f / 250; |
440 | |
441 | mutex_lock(&data->update_lock); |
442 | data->reg[param->msb[0]] = temp; |
443 | write_byte(client, param->msb[0], temp); |
444 | mutex_unlock(&data->update_lock); |
445 | return count; |
446 | } |
447 | |
448 | /* |
449 | * The aSC7621 doesn't provide an "auto_point2". Instead, you |
450 | * specify the auto_point1 and a range. To keep with the sysfs |
451 | * hwmon specs, we synthesize the auto_point_2 from them. |
452 | */ |
453 | |
454 | static u32 asc7621_range_map[] = { |
455 | 2000, 2500, 3330, 4000, 5000, 6670, 8000, 10000, |
456 | 13330, 16000, 20000, 26670, 32000, 40000, 53330, 80000, |
457 | }; |
458 | |
459 | static ssize_t show_ap2_temp(struct device *dev, |
460 | struct device_attribute *attr, char *buf) |
461 | { |
462 | SETUP_SHOW_data_param(dev, attr); |
463 | long auto_point1; |
464 | u8 regval; |
465 | int temp; |
466 | |
467 | mutex_lock(&data->update_lock); |
468 | auto_point1 = ((s8) data->reg[param->msb[1]]) * 1000; |
469 | regval = |
470 | ((data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]); |
471 | temp = auto_point1 + asc7621_range_map[clamp_val(regval, 0, 15)]; |
472 | mutex_unlock(&data->update_lock); |
473 | |
474 | return sprintf(buf, "%d\n", temp); |
475 | |
476 | } |
477 | |
478 | static ssize_t store_ap2_temp(struct device *dev, |
479 | struct device_attribute *attr, |
480 | const char *buf, size_t count) |
481 | { |
482 | SETUP_STORE_data_param(dev, attr); |
483 | long reqval, auto_point1; |
484 | int i; |
485 | u8 currval, newval = 0; |
486 | |
487 | if (kstrtol(buf, 10, &reqval)) |
488 | return -EINVAL; |
489 | |
490 | mutex_lock(&data->update_lock); |
491 | auto_point1 = data->reg[param->msb[1]] * 1000; |
492 | reqval = clamp_val(reqval, auto_point1 + 2000, auto_point1 + 80000); |
493 | |
494 | for (i = ARRAY_SIZE(asc7621_range_map) - 1; i >= 0; i--) { |
495 | if (reqval >= auto_point1 + asc7621_range_map[i]) { |
496 | newval = i; |
497 | break; |
498 | } |
499 | } |
500 | |
501 | newval = (newval & param->mask[0]) << param->shift[0]; |
502 | currval = read_byte(client, param->msb[0]); |
503 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
504 | data->reg[param->msb[0]] = newval; |
505 | write_byte(client, param->msb[0], newval); |
506 | mutex_unlock(&data->update_lock); |
507 | return count; |
508 | } |
509 | |
510 | static ssize_t show_pwm_ac(struct device *dev, |
511 | struct device_attribute *attr, char *buf) |
512 | { |
513 | SETUP_SHOW_data_param(dev, attr); |
514 | u8 config, altbit, regval; |
515 | u8 map[] = { |
516 | 0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10, |
517 | 0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f |
518 | }; |
519 | |
520 | mutex_lock(&data->update_lock); |
521 | config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
522 | altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1]; |
523 | regval = config | (altbit << 3); |
524 | mutex_unlock(&data->update_lock); |
525 | |
526 | return sprintf(buf, "%u\n", map[clamp_val(regval, 0, 15)]); |
527 | } |
528 | |
529 | static ssize_t store_pwm_ac(struct device *dev, |
530 | struct device_attribute *attr, |
531 | const char *buf, size_t count) |
532 | { |
533 | SETUP_STORE_data_param(dev, attr); |
534 | unsigned long reqval; |
535 | u8 currval, config, altbit, newval; |
536 | u16 map[] = { |
537 | 0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06, |
538 | 0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f, |
539 | 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
540 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03, |
541 | }; |
542 | |
543 | if (kstrtoul(buf, 10, &reqval)) |
544 | return -EINVAL; |
545 | |
546 | if (reqval > 31) |
547 | return -EINVAL; |
548 | |
549 | reqval = map[reqval]; |
550 | if (reqval == 0xff) |
551 | return -EINVAL; |
552 | |
553 | config = reqval & 0x07; |
554 | altbit = (reqval >> 3) & 0x01; |
555 | |
556 | config = (config & param->mask[0]) << param->shift[0]; |
557 | altbit = (altbit & param->mask[1]) << param->shift[1]; |
558 | |
559 | mutex_lock(&data->update_lock); |
560 | currval = read_byte(client, param->msb[0]); |
561 | newval = config | (currval & ~(param->mask[0] << param->shift[0])); |
562 | newval = altbit | (newval & ~(param->mask[1] << param->shift[1])); |
563 | data->reg[param->msb[0]] = newval; |
564 | write_byte(client, param->msb[0], newval); |
565 | mutex_unlock(&data->update_lock); |
566 | return count; |
567 | } |
568 | |
569 | static ssize_t show_pwm_enable(struct device *dev, |
570 | struct device_attribute *attr, char *buf) |
571 | { |
572 | SETUP_SHOW_data_param(dev, attr); |
573 | u8 config, altbit, minoff, val, newval; |
574 | |
575 | mutex_lock(&data->update_lock); |
576 | config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
577 | altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1]; |
578 | minoff = (data->reg[param->msb[2]] >> param->shift[2]) & param->mask[2]; |
579 | mutex_unlock(&data->update_lock); |
580 | |
581 | val = config | (altbit << 3); |
582 | newval = 0; |
583 | |
584 | if (val == 3 || val >= 10) |
585 | newval = 255; |
586 | else if (val == 4) |
587 | newval = 0; |
588 | else if (val == 7) |
589 | newval = 1; |
590 | else if (minoff == 1) |
591 | newval = 2; |
592 | else |
593 | newval = 3; |
594 | |
595 | return sprintf(buf, "%u\n", newval); |
596 | } |
597 | |
598 | static ssize_t store_pwm_enable(struct device *dev, |
599 | struct device_attribute *attr, |
600 | const char *buf, size_t count) |
601 | { |
602 | SETUP_STORE_data_param(dev, attr); |
603 | long reqval; |
604 | u8 currval, config, altbit, newval, minoff = 255; |
605 | |
606 | if (kstrtol(buf, 10, &reqval)) |
607 | return -EINVAL; |
608 | |
609 | switch (reqval) { |
610 | case 0: |
611 | newval = 0x04; |
612 | break; |
613 | case 1: |
614 | newval = 0x07; |
615 | break; |
616 | case 2: |
617 | newval = 0x00; |
618 | minoff = 1; |
619 | break; |
620 | case 3: |
621 | newval = 0x00; |
622 | minoff = 0; |
623 | break; |
624 | case 255: |
625 | newval = 0x03; |
626 | break; |
627 | default: |
628 | return -EINVAL; |
629 | } |
630 | |
631 | config = newval & 0x07; |
632 | altbit = (newval >> 3) & 0x01; |
633 | |
634 | mutex_lock(&data->update_lock); |
635 | config = (config & param->mask[0]) << param->shift[0]; |
636 | altbit = (altbit & param->mask[1]) << param->shift[1]; |
637 | currval = read_byte(client, param->msb[0]); |
638 | newval = config | (currval & ~(param->mask[0] << param->shift[0])); |
639 | newval = altbit | (newval & ~(param->mask[1] << param->shift[1])); |
640 | data->reg[param->msb[0]] = newval; |
641 | write_byte(client, param->msb[0], newval); |
642 | if (minoff < 255) { |
643 | minoff = (minoff & param->mask[2]) << param->shift[2]; |
644 | currval = read_byte(client, param->msb[2]); |
645 | newval = |
646 | minoff | (currval & ~(param->mask[2] << param->shift[2])); |
647 | data->reg[param->msb[2]] = newval; |
648 | write_byte(client, param->msb[2], newval); |
649 | } |
650 | mutex_unlock(&data->update_lock); |
651 | return count; |
652 | } |
653 | |
654 | static u32 asc7621_pwm_freq_map[] = { |
655 | 10, 15, 23, 30, 38, 47, 62, 94, |
656 | 23000, 24000, 25000, 26000, 27000, 28000, 29000, 30000 |
657 | }; |
658 | |
659 | static ssize_t show_pwm_freq(struct device *dev, |
660 | struct device_attribute *attr, char *buf) |
661 | { |
662 | SETUP_SHOW_data_param(dev, attr); |
663 | u8 regval = |
664 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
665 | |
666 | regval = clamp_val(regval, 0, 15); |
667 | |
668 | return sprintf(buf, "%u\n", asc7621_pwm_freq_map[regval]); |
669 | } |
670 | |
671 | static ssize_t store_pwm_freq(struct device *dev, |
672 | struct device_attribute *attr, |
673 | const char *buf, size_t count) |
674 | { |
675 | SETUP_STORE_data_param(dev, attr); |
676 | unsigned long reqval; |
677 | u8 currval, newval = 255; |
678 | int i; |
679 | |
680 | if (kstrtoul(buf, 10, &reqval)) |
681 | return -EINVAL; |
682 | |
683 | for (i = 0; i < ARRAY_SIZE(asc7621_pwm_freq_map); i++) { |
684 | if (reqval == asc7621_pwm_freq_map[i]) { |
685 | newval = i; |
686 | break; |
687 | } |
688 | } |
689 | if (newval == 255) |
690 | return -EINVAL; |
691 | |
692 | newval = (newval & param->mask[0]) << param->shift[0]; |
693 | |
694 | mutex_lock(&data->update_lock); |
695 | currval = read_byte(client, param->msb[0]); |
696 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
697 | data->reg[param->msb[0]] = newval; |
698 | write_byte(client, param->msb[0], newval); |
699 | mutex_unlock(&data->update_lock); |
700 | return count; |
701 | } |
702 | |
703 | static u32 asc7621_pwm_auto_spinup_map[] = { |
704 | 0, 100, 250, 400, 700, 1000, 2000, 4000 |
705 | }; |
706 | |
707 | static ssize_t show_pwm_ast(struct device *dev, |
708 | struct device_attribute *attr, char *buf) |
709 | { |
710 | SETUP_SHOW_data_param(dev, attr); |
711 | u8 regval = |
712 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
713 | |
714 | regval = clamp_val(regval, 0, 7); |
715 | |
716 | return sprintf(buf, "%u\n", asc7621_pwm_auto_spinup_map[regval]); |
717 | |
718 | } |
719 | |
720 | static ssize_t store_pwm_ast(struct device *dev, |
721 | struct device_attribute *attr, |
722 | const char *buf, size_t count) |
723 | { |
724 | SETUP_STORE_data_param(dev, attr); |
725 | long reqval; |
726 | u8 currval, newval = 255; |
727 | u32 i; |
728 | |
729 | if (kstrtol(buf, 10, &reqval)) |
730 | return -EINVAL; |
731 | |
732 | for (i = 0; i < ARRAY_SIZE(asc7621_pwm_auto_spinup_map); i++) { |
733 | if (reqval == asc7621_pwm_auto_spinup_map[i]) { |
734 | newval = i; |
735 | break; |
736 | } |
737 | } |
738 | if (newval == 255) |
739 | return -EINVAL; |
740 | |
741 | newval = (newval & param->mask[0]) << param->shift[0]; |
742 | |
743 | mutex_lock(&data->update_lock); |
744 | currval = read_byte(client, param->msb[0]); |
745 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
746 | data->reg[param->msb[0]] = newval; |
747 | write_byte(client, param->msb[0], newval); |
748 | mutex_unlock(&data->update_lock); |
749 | return count; |
750 | } |
751 | |
752 | static u32 asc7621_temp_smoothing_time_map[] = { |
753 | 35000, 17600, 11800, 7000, 4400, 3000, 1600, 800 |
754 | }; |
755 | |
756 | static ssize_t show_temp_st(struct device *dev, |
757 | struct device_attribute *attr, char *buf) |
758 | { |
759 | SETUP_SHOW_data_param(dev, attr); |
760 | u8 regval = |
761 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
762 | regval = clamp_val(regval, 0, 7); |
763 | |
764 | return sprintf(buf, "%u\n", asc7621_temp_smoothing_time_map[regval]); |
765 | } |
766 | |
767 | static ssize_t store_temp_st(struct device *dev, |
768 | struct device_attribute *attr, |
769 | const char *buf, size_t count) |
770 | { |
771 | SETUP_STORE_data_param(dev, attr); |
772 | long reqval; |
773 | u8 currval, newval = 255; |
774 | u32 i; |
775 | |
776 | if (kstrtol(buf, 10, &reqval)) |
777 | return -EINVAL; |
778 | |
779 | for (i = 0; i < ARRAY_SIZE(asc7621_temp_smoothing_time_map); i++) { |
780 | if (reqval == asc7621_temp_smoothing_time_map[i]) { |
781 | newval = i; |
782 | break; |
783 | } |
784 | } |
785 | |
786 | if (newval == 255) |
787 | return -EINVAL; |
788 | |
789 | newval = (newval & param->mask[0]) << param->shift[0]; |
790 | |
791 | mutex_lock(&data->update_lock); |
792 | currval = read_byte(client, param->msb[0]); |
793 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
794 | data->reg[param->msb[0]] = newval; |
795 | write_byte(client, param->msb[0], newval); |
796 | mutex_unlock(&data->update_lock); |
797 | return count; |
798 | } |
799 | |
800 | /* |
801 | * End of data handlers |
802 | * |
803 | * These defines do nothing more than make the table easier |
804 | * to read when wrapped at column 80. |
805 | */ |
806 | |
807 | /* |
808 | * Creates a variable length array inititalizer. |
809 | * VAA(1,3,5,7) would produce {1,3,5,7} |
810 | */ |
811 | #define VAA(args...) {args} |
812 | |
813 | #define PREAD(name, n, pri, rm, rl, m, s, r) \ |
814 | {.sda = SENSOR_ATTR(name, S_IRUGO, show_##r, NULL, n), \ |
815 | .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \ |
816 | .shift[0] = s,} |
817 | |
818 | #define PWRITE(name, n, pri, rm, rl, m, s, r) \ |
819 | {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \ |
820 | .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \ |
821 | .shift[0] = s,} |
822 | |
823 | /* |
824 | * PWRITEM assumes that the initializers for the .msb, .lsb, .mask and .shift |
825 | * were created using the VAA macro. |
826 | */ |
827 | #define PWRITEM(name, n, pri, rm, rl, m, s, r) \ |
828 | {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \ |
829 | .priority = pri, .msb = rm, .lsb = rl, .mask = m, .shift = s,} |
830 | |
831 | static struct asc7621_param asc7621_params[] = { |
832 | PREAD(in0_input, 0, PRI_HIGH, 0x20, 0x13, 0, 0, in10), |
833 | PREAD(in1_input, 1, PRI_HIGH, 0x21, 0x18, 0, 0, in10), |
834 | PREAD(in2_input, 2, PRI_HIGH, 0x22, 0x11, 0, 0, in10), |
835 | PREAD(in3_input, 3, PRI_HIGH, 0x23, 0x12, 0, 0, in10), |
836 | PREAD(in4_input, 4, PRI_HIGH, 0x24, 0x14, 0, 0, in10), |
837 | |
838 | PWRITE(in0_min, 0, PRI_LOW, 0x44, 0, 0, 0, in8), |
839 | PWRITE(in1_min, 1, PRI_LOW, 0x46, 0, 0, 0, in8), |
840 | PWRITE(in2_min, 2, PRI_LOW, 0x48, 0, 0, 0, in8), |
841 | PWRITE(in3_min, 3, PRI_LOW, 0x4a, 0, 0, 0, in8), |
842 | PWRITE(in4_min, 4, PRI_LOW, 0x4c, 0, 0, 0, in8), |
843 | |
844 | PWRITE(in0_max, 0, PRI_LOW, 0x45, 0, 0, 0, in8), |
845 | PWRITE(in1_max, 1, PRI_LOW, 0x47, 0, 0, 0, in8), |
846 | PWRITE(in2_max, 2, PRI_LOW, 0x49, 0, 0, 0, in8), |
847 | PWRITE(in3_max, 3, PRI_LOW, 0x4b, 0, 0, 0, in8), |
848 | PWRITE(in4_max, 4, PRI_LOW, 0x4d, 0, 0, 0, in8), |
849 | |
850 | PREAD(in0_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 0, bitmask), |
851 | PREAD(in1_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 1, bitmask), |
852 | PREAD(in2_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 2, bitmask), |
853 | PREAD(in3_alarm, 3, PRI_HIGH, 0x41, 0, 0x01, 3, bitmask), |
854 | PREAD(in4_alarm, 4, PRI_HIGH, 0x42, 0, 0x01, 0, bitmask), |
855 | |
856 | PREAD(fan1_input, 0, PRI_HIGH, 0x29, 0x28, 0, 0, fan16), |
857 | PREAD(fan2_input, 1, PRI_HIGH, 0x2b, 0x2a, 0, 0, fan16), |
858 | PREAD(fan3_input, 2, PRI_HIGH, 0x2d, 0x2c, 0, 0, fan16), |
859 | PREAD(fan4_input, 3, PRI_HIGH, 0x2f, 0x2e, 0, 0, fan16), |
860 | |
861 | PWRITE(fan1_min, 0, PRI_LOW, 0x55, 0x54, 0, 0, fan16), |
862 | PWRITE(fan2_min, 1, PRI_LOW, 0x57, 0x56, 0, 0, fan16), |
863 | PWRITE(fan3_min, 2, PRI_LOW, 0x59, 0x58, 0, 0, fan16), |
864 | PWRITE(fan4_min, 3, PRI_LOW, 0x5b, 0x5a, 0, 0, fan16), |
865 | |
866 | PREAD(fan1_alarm, 0, PRI_HIGH, 0x42, 0, 0x01, 2, bitmask), |
867 | PREAD(fan2_alarm, 1, PRI_HIGH, 0x42, 0, 0x01, 3, bitmask), |
868 | PREAD(fan3_alarm, 2, PRI_HIGH, 0x42, 0, 0x01, 4, bitmask), |
869 | PREAD(fan4_alarm, 3, PRI_HIGH, 0x42, 0, 0x01, 5, bitmask), |
870 | |
871 | PREAD(temp1_input, 0, PRI_HIGH, 0x25, 0x10, 0, 0, temp10), |
872 | PREAD(temp2_input, 1, PRI_HIGH, 0x26, 0x15, 0, 0, temp10), |
873 | PREAD(temp3_input, 2, PRI_HIGH, 0x27, 0x16, 0, 0, temp10), |
874 | PREAD(temp4_input, 3, PRI_HIGH, 0x33, 0x17, 0, 0, temp10), |
875 | PREAD(temp5_input, 4, PRI_HIGH, 0xf7, 0xf6, 0, 0, temp10), |
876 | PREAD(temp6_input, 5, PRI_HIGH, 0xf9, 0xf8, 0, 0, temp10), |
877 | PREAD(temp7_input, 6, PRI_HIGH, 0xfb, 0xfa, 0, 0, temp10), |
878 | PREAD(temp8_input, 7, PRI_HIGH, 0xfd, 0xfc, 0, 0, temp10), |
879 | |
880 | PWRITE(temp1_min, 0, PRI_LOW, 0x4e, 0, 0, 0, temp8), |
881 | PWRITE(temp2_min, 1, PRI_LOW, 0x50, 0, 0, 0, temp8), |
882 | PWRITE(temp3_min, 2, PRI_LOW, 0x52, 0, 0, 0, temp8), |
883 | PWRITE(temp4_min, 3, PRI_LOW, 0x34, 0, 0, 0, temp8), |
884 | |
885 | PWRITE(temp1_max, 0, PRI_LOW, 0x4f, 0, 0, 0, temp8), |
886 | PWRITE(temp2_max, 1, PRI_LOW, 0x51, 0, 0, 0, temp8), |
887 | PWRITE(temp3_max, 2, PRI_LOW, 0x53, 0, 0, 0, temp8), |
888 | PWRITE(temp4_max, 3, PRI_LOW, 0x35, 0, 0, 0, temp8), |
889 | |
890 | PREAD(temp1_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 4, bitmask), |
891 | PREAD(temp2_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 5, bitmask), |
892 | PREAD(temp3_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 6, bitmask), |
893 | PREAD(temp4_alarm, 3, PRI_HIGH, 0x43, 0, 0x01, 0, bitmask), |
894 | |
895 | PWRITE(temp1_source, 0, PRI_LOW, 0x02, 0, 0x07, 4, bitmask), |
896 | PWRITE(temp2_source, 1, PRI_LOW, 0x02, 0, 0x07, 0, bitmask), |
897 | PWRITE(temp3_source, 2, PRI_LOW, 0x03, 0, 0x07, 4, bitmask), |
898 | PWRITE(temp4_source, 3, PRI_LOW, 0x03, 0, 0x07, 0, bitmask), |
899 | |
900 | PWRITE(temp1_smoothing_enable, 0, PRI_LOW, 0x62, 0, 0x01, 3, bitmask), |
901 | PWRITE(temp2_smoothing_enable, 1, PRI_LOW, 0x63, 0, 0x01, 7, bitmask), |
902 | PWRITE(temp3_smoothing_enable, 2, PRI_LOW, 0x63, 0, 0x01, 3, bitmask), |
903 | PWRITE(temp4_smoothing_enable, 3, PRI_LOW, 0x3c, 0, 0x01, 3, bitmask), |
904 | |
905 | PWRITE(temp1_smoothing_time, 0, PRI_LOW, 0x62, 0, 0x07, 0, temp_st), |
906 | PWRITE(temp2_smoothing_time, 1, PRI_LOW, 0x63, 0, 0x07, 4, temp_st), |
907 | PWRITE(temp3_smoothing_time, 2, PRI_LOW, 0x63, 0, 0x07, 0, temp_st), |
908 | PWRITE(temp4_smoothing_time, 3, PRI_LOW, 0x3c, 0, 0x07, 0, temp_st), |
909 | |
910 | PWRITE(temp1_auto_point1_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4, |
911 | bitmask), |
912 | PWRITE(temp2_auto_point1_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0, |
913 | bitmask), |
914 | PWRITE(temp3_auto_point1_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4, |
915 | bitmask), |
916 | PWRITE(temp4_auto_point1_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0, |
917 | bitmask), |
918 | |
919 | PREAD(temp1_auto_point2_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4, |
920 | bitmask), |
921 | PREAD(temp2_auto_point2_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0, |
922 | bitmask), |
923 | PREAD(temp3_auto_point2_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4, |
924 | bitmask), |
925 | PREAD(temp4_auto_point2_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0, |
926 | bitmask), |
927 | |
928 | PWRITE(temp1_auto_point1_temp, 0, PRI_LOW, 0x67, 0, 0, 0, temp8), |
929 | PWRITE(temp2_auto_point1_temp, 1, PRI_LOW, 0x68, 0, 0, 0, temp8), |
930 | PWRITE(temp3_auto_point1_temp, 2, PRI_LOW, 0x69, 0, 0, 0, temp8), |
931 | PWRITE(temp4_auto_point1_temp, 3, PRI_LOW, 0x3b, 0, 0, 0, temp8), |
932 | |
933 | PWRITEM(temp1_auto_point2_temp, 0, PRI_LOW, VAA(0x5f, 0x67), VAA(0), |
934 | VAA(0x0f), VAA(4), ap2_temp), |
935 | PWRITEM(temp2_auto_point2_temp, 1, PRI_LOW, VAA(0x60, 0x68), VAA(0), |
936 | VAA(0x0f), VAA(4), ap2_temp), |
937 | PWRITEM(temp3_auto_point2_temp, 2, PRI_LOW, VAA(0x61, 0x69), VAA(0), |
938 | VAA(0x0f), VAA(4), ap2_temp), |
939 | PWRITEM(temp4_auto_point2_temp, 3, PRI_LOW, VAA(0x3c, 0x3b), VAA(0), |
940 | VAA(0x0f), VAA(4), ap2_temp), |
941 | |
942 | PWRITE(temp1_crit, 0, PRI_LOW, 0x6a, 0, 0, 0, temp8), |
943 | PWRITE(temp2_crit, 1, PRI_LOW, 0x6b, 0, 0, 0, temp8), |
944 | PWRITE(temp3_crit, 2, PRI_LOW, 0x6c, 0, 0, 0, temp8), |
945 | PWRITE(temp4_crit, 3, PRI_LOW, 0x3d, 0, 0, 0, temp8), |
946 | |
947 | PWRITE(temp5_enable, 4, PRI_LOW, 0x0e, 0, 0x01, 0, bitmask), |
948 | PWRITE(temp6_enable, 5, PRI_LOW, 0x0e, 0, 0x01, 1, bitmask), |
949 | PWRITE(temp7_enable, 6, PRI_LOW, 0x0e, 0, 0x01, 2, bitmask), |
950 | PWRITE(temp8_enable, 7, PRI_LOW, 0x0e, 0, 0x01, 3, bitmask), |
951 | |
952 | PWRITE(remote1_offset, 0, PRI_LOW, 0x1c, 0, 0, 0, temp62), |
953 | PWRITE(remote2_offset, 1, PRI_LOW, 0x1d, 0, 0, 0, temp62), |
954 | |
955 | PWRITE(pwm1, 0, PRI_HIGH, 0x30, 0, 0, 0, u8), |
956 | PWRITE(pwm2, 1, PRI_HIGH, 0x31, 0, 0, 0, u8), |
957 | PWRITE(pwm3, 2, PRI_HIGH, 0x32, 0, 0, 0, u8), |
958 | |
959 | PWRITE(pwm1_invert, 0, PRI_LOW, 0x5c, 0, 0x01, 4, bitmask), |
960 | PWRITE(pwm2_invert, 1, PRI_LOW, 0x5d, 0, 0x01, 4, bitmask), |
961 | PWRITE(pwm3_invert, 2, PRI_LOW, 0x5e, 0, 0x01, 4, bitmask), |
962 | |
963 | PWRITEM(pwm1_enable, 0, PRI_LOW, VAA(0x5c, 0x5c, 0x62), VAA(0, 0, 0), |
964 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 5), pwm_enable), |
965 | PWRITEM(pwm2_enable, 1, PRI_LOW, VAA(0x5d, 0x5d, 0x62), VAA(0, 0, 0), |
966 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 6), pwm_enable), |
967 | PWRITEM(pwm3_enable, 2, PRI_LOW, VAA(0x5e, 0x5e, 0x62), VAA(0, 0, 0), |
968 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 7), pwm_enable), |
969 | |
970 | PWRITEM(pwm1_auto_channels, 0, PRI_LOW, VAA(0x5c, 0x5c), VAA(0, 0), |
971 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
972 | PWRITEM(pwm2_auto_channels, 1, PRI_LOW, VAA(0x5d, 0x5d), VAA(0, 0), |
973 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
974 | PWRITEM(pwm3_auto_channels, 2, PRI_LOW, VAA(0x5e, 0x5e), VAA(0, 0), |
975 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
976 | |
977 | PWRITE(pwm1_auto_point1_pwm, 0, PRI_LOW, 0x64, 0, 0, 0, u8), |
978 | PWRITE(pwm2_auto_point1_pwm, 1, PRI_LOW, 0x65, 0, 0, 0, u8), |
979 | PWRITE(pwm3_auto_point1_pwm, 2, PRI_LOW, 0x66, 0, 0, 0, u8), |
980 | |
981 | PWRITE(pwm1_auto_point2_pwm, 0, PRI_LOW, 0x38, 0, 0, 0, u8), |
982 | PWRITE(pwm2_auto_point2_pwm, 1, PRI_LOW, 0x39, 0, 0, 0, u8), |
983 | PWRITE(pwm3_auto_point2_pwm, 2, PRI_LOW, 0x3a, 0, 0, 0, u8), |
984 | |
985 | PWRITE(pwm1_freq, 0, PRI_LOW, 0x5f, 0, 0x0f, 0, pwm_freq), |
986 | PWRITE(pwm2_freq, 1, PRI_LOW, 0x60, 0, 0x0f, 0, pwm_freq), |
987 | PWRITE(pwm3_freq, 2, PRI_LOW, 0x61, 0, 0x0f, 0, pwm_freq), |
988 | |
989 | PREAD(pwm1_auto_zone_assigned, 0, PRI_LOW, 0, 0, 0x03, 2, bitmask), |
990 | PREAD(pwm2_auto_zone_assigned, 1, PRI_LOW, 0, 0, 0x03, 4, bitmask), |
991 | PREAD(pwm3_auto_zone_assigned, 2, PRI_LOW, 0, 0, 0x03, 6, bitmask), |
992 | |
993 | PWRITE(pwm1_auto_spinup_time, 0, PRI_LOW, 0x5c, 0, 0x07, 0, pwm_ast), |
994 | PWRITE(pwm2_auto_spinup_time, 1, PRI_LOW, 0x5d, 0, 0x07, 0, pwm_ast), |
995 | PWRITE(pwm3_auto_spinup_time, 2, PRI_LOW, 0x5e, 0, 0x07, 0, pwm_ast), |
996 | |
997 | PWRITE(peci_enable, 0, PRI_LOW, 0x40, 0, 0x01, 4, bitmask), |
998 | PWRITE(peci_avg, 0, PRI_LOW, 0x36, 0, 0x07, 0, bitmask), |
999 | PWRITE(peci_domain, 0, PRI_LOW, 0x36, 0, 0x01, 3, bitmask), |
1000 | PWRITE(peci_legacy, 0, PRI_LOW, 0x36, 0, 0x01, 4, bitmask), |
1001 | PWRITE(peci_diode, 0, PRI_LOW, 0x0e, 0, 0x07, 4, bitmask), |
1002 | PWRITE(peci_4domain, 0, PRI_LOW, 0x0e, 0, 0x01, 4, bitmask), |
1003 | |
1004 | }; |
1005 | |
1006 | static struct asc7621_data *asc7621_update_device(struct device *dev) |
1007 | { |
1008 | struct i2c_client *client = to_i2c_client(dev); |
1009 | struct asc7621_data *data = i2c_get_clientdata(client); |
1010 | int i; |
1011 | |
1012 | /* |
1013 | * The asc7621 chips guarantee consistent reads of multi-byte values |
1014 | * regardless of the order of the reads. No special logic is needed |
1015 | * so we can just read the registers in whatever order they appear |
1016 | * in the asc7621_params array. |
1017 | */ |
1018 | |
1019 | mutex_lock(&data->update_lock); |
1020 | |
1021 | /* Read all the high priority registers */ |
1022 | |
1023 | if (!data->valid || |
1024 | time_after(jiffies, data->last_high_reading + INTERVAL_HIGH)) { |
1025 | |
1026 | for (i = 0; i < ARRAY_SIZE(asc7621_register_priorities); i++) { |
1027 | if (asc7621_register_priorities[i] == PRI_HIGH) { |
1028 | data->reg[i] = |
1029 | i2c_smbus_read_byte_data(client, i) & 0xff; |
1030 | } |
1031 | } |
1032 | data->last_high_reading = jiffies; |
1033 | }; /* last_reading */ |
1034 | |
1035 | /* Read all the low priority registers. */ |
1036 | |
1037 | if (!data->valid || |
1038 | time_after(jiffies, data->last_low_reading + INTERVAL_LOW)) { |
1039 | |
1040 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
1041 | if (asc7621_register_priorities[i] == PRI_LOW) { |
1042 | data->reg[i] = |
1043 | i2c_smbus_read_byte_data(client, i) & 0xff; |
1044 | } |
1045 | } |
1046 | data->last_low_reading = jiffies; |
1047 | }; /* last_reading */ |
1048 | |
1049 | data->valid = 1; |
1050 | |
1051 | mutex_unlock(&data->update_lock); |
1052 | |
1053 | return data; |
1054 | } |
1055 | |
1056 | /* |
1057 | * Standard detection and initialization below |
1058 | * |
1059 | * Helper function that checks if an address is valid |
1060 | * for a particular chip. |
1061 | */ |
1062 | |
1063 | static inline int valid_address_for_chip(int chip_type, int address) |
1064 | { |
1065 | int i; |
1066 | |
1067 | for (i = 0; asc7621_chips[chip_type].addresses[i] != I2C_CLIENT_END; |
1068 | i++) { |
1069 | if (asc7621_chips[chip_type].addresses[i] == address) |
1070 | return 1; |
1071 | } |
1072 | return 0; |
1073 | } |
1074 | |
1075 | static void asc7621_init_client(struct i2c_client *client) |
1076 | { |
1077 | int value; |
1078 | |
1079 | /* Warn if part was not "READY" */ |
1080 | |
1081 | value = read_byte(client, 0x40); |
1082 | |
1083 | if (value & 0x02) { |
1084 | dev_err(&client->dev, |
1085 | "Client (%d,0x%02x) config is locked.\n", |
1086 | i2c_adapter_id(client->adapter), client->addr); |
1087 | }; |
1088 | if (!(value & 0x04)) { |
1089 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", |
1090 | i2c_adapter_id(client->adapter), client->addr); |
1091 | }; |
1092 | |
1093 | /* |
1094 | * Start monitoring |
1095 | * |
1096 | * Try to clear LOCK, Set START, save everything else |
1097 | */ |
1098 | value = (value & ~0x02) | 0x01; |
1099 | write_byte(client, 0x40, value & 0xff); |
1100 | |
1101 | } |
1102 | |
1103 | static int |
1104 | asc7621_probe(struct i2c_client *client, const struct i2c_device_id *id) |
1105 | { |
1106 | struct asc7621_data *data; |
1107 | int i, err; |
1108 | |
1109 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1110 | return -EIO; |
1111 | |
1112 | data = devm_kzalloc(&client->dev, sizeof(struct asc7621_data), |
1113 | GFP_KERNEL); |
1114 | if (data == NULL) |
1115 | return -ENOMEM; |
1116 | |
1117 | i2c_set_clientdata(client, data); |
1118 | data->valid = 0; |
1119 | mutex_init(&data->update_lock); |
1120 | |
1121 | /* Initialize the asc7621 chip */ |
1122 | asc7621_init_client(client); |
1123 | |
1124 | /* Create the sysfs entries */ |
1125 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
1126 | err = |
1127 | device_create_file(&client->dev, |
1128 | &(asc7621_params[i].sda.dev_attr)); |
1129 | if (err) |
1130 | goto exit_remove; |
1131 | } |
1132 | |
1133 | data->class_dev = hwmon_device_register(&client->dev); |
1134 | if (IS_ERR(data->class_dev)) { |
1135 | err = PTR_ERR(data->class_dev); |
1136 | goto exit_remove; |
1137 | } |
1138 | |
1139 | return 0; |
1140 | |
1141 | exit_remove: |
1142 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
1143 | device_remove_file(&client->dev, |
1144 | &(asc7621_params[i].sda.dev_attr)); |
1145 | } |
1146 | |
1147 | return err; |
1148 | } |
1149 | |
1150 | static int asc7621_detect(struct i2c_client *client, |
1151 | struct i2c_board_info *info) |
1152 | { |
1153 | struct i2c_adapter *adapter = client->adapter; |
1154 | int company, verstep, chip_index; |
1155 | |
1156 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1157 | return -ENODEV; |
1158 | |
1159 | for (chip_index = FIRST_CHIP; chip_index <= LAST_CHIP; chip_index++) { |
1160 | |
1161 | if (!valid_address_for_chip(chip_index, client->addr)) |
1162 | continue; |
1163 | |
1164 | company = read_byte(client, |
1165 | asc7621_chips[chip_index].company_reg); |
1166 | verstep = read_byte(client, |
1167 | asc7621_chips[chip_index].verstep_reg); |
1168 | |
1169 | if (company == asc7621_chips[chip_index].company_id && |
1170 | verstep == asc7621_chips[chip_index].verstep_id) { |
1171 | strlcpy(info->type, asc7621_chips[chip_index].name, |
1172 | I2C_NAME_SIZE); |
1173 | |
1174 | dev_info(&adapter->dev, "Matched %s at 0x%02x\n", |
1175 | asc7621_chips[chip_index].name, client->addr); |
1176 | return 0; |
1177 | } |
1178 | } |
1179 | |
1180 | return -ENODEV; |
1181 | } |
1182 | |
1183 | static int asc7621_remove(struct i2c_client *client) |
1184 | { |
1185 | struct asc7621_data *data = i2c_get_clientdata(client); |
1186 | int i; |
1187 | |
1188 | hwmon_device_unregister(data->class_dev); |
1189 | |
1190 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
1191 | device_remove_file(&client->dev, |
1192 | &(asc7621_params[i].sda.dev_attr)); |
1193 | } |
1194 | |
1195 | return 0; |
1196 | } |
1197 | |
1198 | static const struct i2c_device_id asc7621_id[] = { |
1199 | {"asc7621", asc7621}, |
1200 | {"asc7621a", asc7621a}, |
1201 | {}, |
1202 | }; |
1203 | |
1204 | MODULE_DEVICE_TABLE(i2c, asc7621_id); |
1205 | |
1206 | static struct i2c_driver asc7621_driver = { |
1207 | .class = I2C_CLASS_HWMON, |
1208 | .driver = { |
1209 | .name = "asc7621", |
1210 | }, |
1211 | .probe = asc7621_probe, |
1212 | .remove = asc7621_remove, |
1213 | .id_table = asc7621_id, |
1214 | .detect = asc7621_detect, |
1215 | .address_list = normal_i2c, |
1216 | }; |
1217 | |
1218 | static int __init sm_asc7621_init(void) |
1219 | { |
1220 | int i, j; |
1221 | /* |
1222 | * Collect all the registers needed into a single array. |
1223 | * This way, if a register isn't actually used for anything, |
1224 | * we don't retrieve it. |
1225 | */ |
1226 | |
1227 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
1228 | for (j = 0; j < ARRAY_SIZE(asc7621_params[i].msb); j++) |
1229 | asc7621_register_priorities[asc7621_params[i].msb[j]] = |
1230 | asc7621_params[i].priority; |
1231 | for (j = 0; j < ARRAY_SIZE(asc7621_params[i].lsb); j++) |
1232 | asc7621_register_priorities[asc7621_params[i].lsb[j]] = |
1233 | asc7621_params[i].priority; |
1234 | } |
1235 | return i2c_add_driver(&asc7621_driver); |
1236 | } |
1237 | |
1238 | static void __exit sm_asc7621_exit(void) |
1239 | { |
1240 | i2c_del_driver(&asc7621_driver); |
1241 | } |
1242 | |
1243 | MODULE_LICENSE("GPL"); |
1244 | MODULE_AUTHOR("George Joseph"); |
1245 | MODULE_DESCRIPTION("Andigilog aSC7621 and aSC7621a driver"); |
1246 | |
1247 | module_init(sm_asc7621_init); |
1248 | module_exit(sm_asc7621_exit); |
1249 |
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