1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * pc87360.c - Part of lm_sensors, Linux kernel modules |
4 | * for hardware monitoring |
5 | * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de> |
6 | * |
7 | * Copied from smsc47m1.c: |
8 | * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> |
9 | * |
10 | * Supports the following chips: |
11 | * |
12 | * Chip #vin #fan #pwm #temp devid |
13 | * PC87360 - 2 2 - 0xE1 |
14 | * PC87363 - 2 2 - 0xE8 |
15 | * PC87364 - 3 3 - 0xE4 |
16 | * PC87365 11 3 3 2 0xE5 |
17 | * PC87366 11 3 3 3-4 0xE9 |
18 | * |
19 | * This driver assumes that no more than one chip is present, and one of |
20 | * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F). |
21 | */ |
22 | |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
24 | |
25 | #include <linux/module.h> |
26 | #include <linux/init.h> |
27 | #include <linux/slab.h> |
28 | #include <linux/jiffies.h> |
29 | #include <linux/platform_device.h> |
30 | #include <linux/hwmon.h> |
31 | #include <linux/hwmon-sysfs.h> |
32 | #include <linux/hwmon-vid.h> |
33 | #include <linux/err.h> |
34 | #include <linux/mutex.h> |
35 | #include <linux/acpi.h> |
36 | #include <linux/io.h> |
37 | |
38 | #define DRIVER_NAME "pc87360" |
39 | |
40 | /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */ |
41 | #define CHAN_CNVRTD 0x80 /* new data ready */ |
42 | #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */ |
43 | #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */ |
44 | #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */ |
45 | |
46 | #define TEMP_OTS_OE 0x20 /* OTS Output Enable */ |
47 | #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */ |
48 | #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */ |
49 | |
50 | static u8 devid; |
51 | static struct platform_device *pdev; |
52 | static unsigned short [3]; |
53 | static u8 confreg[4]; |
54 | |
55 | static int init = 1; |
56 | module_param(init, int, 0); |
57 | MODULE_PARM_DESC(init, |
58 | "Chip initialization level:\n" |
59 | " 0: None\n" |
60 | "*1: Forcibly enable internal voltage and temperature channels, except in9\n" |
61 | " 2: Forcibly enable all voltage and temperature channels, except in9\n" |
62 | " 3: Forcibly enable all voltage and temperature channels, including in9" ); |
63 | |
64 | static unsigned short force_id; |
65 | module_param(force_id, ushort, 0); |
66 | MODULE_PARM_DESC(force_id, "Override the detected device ID" ); |
67 | |
68 | /* |
69 | * Super-I/O registers and operations |
70 | */ |
71 | |
72 | #define DEV 0x07 /* Register: Logical device select */ |
73 | #define DEVID 0x20 /* Register: Device ID */ |
74 | #define ACT 0x30 /* Register: Device activation */ |
75 | #define BASE 0x60 /* Register: Base address */ |
76 | |
77 | #define FSCM 0x09 /* Logical device: fans */ |
78 | #define VLM 0x0d /* Logical device: voltages */ |
79 | #define TMS 0x0e /* Logical device: temperatures */ |
80 | #define LDNI_MAX 3 |
81 | static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS }; |
82 | |
83 | #define LD_FAN 0 |
84 | #define LD_IN 1 |
85 | #define LD_TEMP 2 |
86 | |
87 | static inline void superio_outb(int sioaddr, int reg, int val) |
88 | { |
89 | outb(value: reg, port: sioaddr); |
90 | outb(value: val, port: sioaddr + 1); |
91 | } |
92 | |
93 | static inline int superio_inb(int sioaddr, int reg) |
94 | { |
95 | outb(value: reg, port: sioaddr); |
96 | return inb(port: sioaddr + 1); |
97 | } |
98 | |
99 | static inline void superio_exit(int sioaddr) |
100 | { |
101 | outb(value: 0x02, port: sioaddr); |
102 | outb(value: 0x02, port: sioaddr + 1); |
103 | } |
104 | |
105 | /* |
106 | * Logical devices |
107 | */ |
108 | |
109 | #define PC87360_EXTENT 0x10 |
110 | #define PC87365_REG_BANK 0x09 |
111 | #define NO_BANK 0xff |
112 | |
113 | /* |
114 | * Fan registers and conversions |
115 | */ |
116 | |
117 | /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ |
118 | #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) |
119 | #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) |
120 | #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) |
121 | #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) |
122 | #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) |
123 | |
124 | #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \ |
125 | 480000 / ((val) * (div))) |
126 | #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \ |
127 | 480000 / ((val) * (div))) |
128 | #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03)) |
129 | #define FAN_STATUS_FROM_REG(val) ((val) & 0x07) |
130 | |
131 | #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1) |
132 | #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1) |
133 | #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1) |
134 | |
135 | #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val)) |
136 | static inline u8 PWM_TO_REG(int val, int inv) |
137 | { |
138 | if (inv) |
139 | val = 255 - val; |
140 | if (val < 0) |
141 | return 0; |
142 | if (val > 255) |
143 | return 255; |
144 | return val; |
145 | } |
146 | |
147 | /* |
148 | * Voltage registers and conversions |
149 | */ |
150 | |
151 | #define PC87365_REG_IN_CONVRATE 0x07 |
152 | #define PC87365_REG_IN_CONFIG 0x08 |
153 | #define PC87365_REG_IN 0x0B |
154 | #define PC87365_REG_IN_MIN 0x0D |
155 | #define PC87365_REG_IN_MAX 0x0C |
156 | #define PC87365_REG_IN_STATUS 0x0A |
157 | #define PC87365_REG_IN_ALARMS1 0x00 |
158 | #define PC87365_REG_IN_ALARMS2 0x01 |
159 | #define PC87365_REG_VID 0x06 |
160 | |
161 | #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256) |
162 | #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \ |
163 | (val) * 256 >= (ref) * 255 ? 255 : \ |
164 | ((val) * 256 + (ref) / 2) / (ref)) |
165 | |
166 | /* |
167 | * Temperature registers and conversions |
168 | */ |
169 | |
170 | #define PC87365_REG_TEMP_CONFIG 0x08 |
171 | #define PC87365_REG_TEMP 0x0B |
172 | #define PC87365_REG_TEMP_MIN 0x0D |
173 | #define PC87365_REG_TEMP_MAX 0x0C |
174 | #define PC87365_REG_TEMP_CRIT 0x0E |
175 | #define PC87365_REG_TEMP_STATUS 0x0A |
176 | #define PC87365_REG_TEMP_ALARMS 0x00 |
177 | |
178 | #define TEMP_FROM_REG(val) ((val) * 1000) |
179 | #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ |
180 | (val) > 127000 ? 127 : \ |
181 | (val) < 0 ? ((val) - 500) / 1000 : \ |
182 | ((val) + 500) / 1000) |
183 | |
184 | /* |
185 | * Device data |
186 | */ |
187 | |
188 | struct pc87360_data { |
189 | const char *name; |
190 | struct device *hwmon_dev; |
191 | struct mutex lock; |
192 | struct mutex update_lock; |
193 | bool valid; /* true if following fields are valid */ |
194 | unsigned long last_updated; /* In jiffies */ |
195 | |
196 | int address[3]; |
197 | |
198 | u8 fannr, innr, tempnr; |
199 | |
200 | u8 fan[3]; /* Register value */ |
201 | u8 fan_min[3]; /* Register value */ |
202 | u8 fan_status[3]; /* Register value */ |
203 | u8 pwm[3]; /* Register value */ |
204 | u16 fan_conf; /* Configuration register values, combined */ |
205 | |
206 | u16 in_vref; /* 1 mV/bit */ |
207 | u8 in[14]; /* Register value */ |
208 | u8 in_min[14]; /* Register value */ |
209 | u8 in_max[14]; /* Register value */ |
210 | u8 in_crit[3]; /* Register value */ |
211 | u8 in_status[14]; /* Register value */ |
212 | u16 in_alarms; /* Register values, combined, masked */ |
213 | u8 vid_conf; /* Configuration register value */ |
214 | u8 vrm; |
215 | u8 vid; /* Register value */ |
216 | |
217 | s8 temp[3]; /* Register value */ |
218 | s8 temp_min[3]; /* Register value */ |
219 | s8 temp_max[3]; /* Register value */ |
220 | s8 temp_crit[3]; /* Register value */ |
221 | u8 temp_status[3]; /* Register value */ |
222 | u8 temp_alarms; /* Register value, masked */ |
223 | }; |
224 | |
225 | /* |
226 | * ldi is the logical device index |
227 | * bank is for voltages and temperatures only |
228 | */ |
229 | static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, |
230 | u8 reg) |
231 | { |
232 | int res; |
233 | |
234 | mutex_lock(&(data->lock)); |
235 | if (bank != NO_BANK) |
236 | outb_p(value: bank, port: data->address[ldi] + PC87365_REG_BANK); |
237 | res = inb_p(port: data->address[ldi] + reg); |
238 | mutex_unlock(lock: &(data->lock)); |
239 | |
240 | return res; |
241 | } |
242 | |
243 | static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, |
244 | u8 reg, u8 value) |
245 | { |
246 | mutex_lock(&(data->lock)); |
247 | if (bank != NO_BANK) |
248 | outb_p(value: bank, port: data->address[ldi] + PC87365_REG_BANK); |
249 | outb_p(value, port: data->address[ldi] + reg); |
250 | mutex_unlock(lock: &(data->lock)); |
251 | } |
252 | |
253 | static void pc87360_autodiv(struct device *dev, int nr) |
254 | { |
255 | struct pc87360_data *data = dev_get_drvdata(dev); |
256 | u8 old_min = data->fan_min[nr]; |
257 | |
258 | /* Increase clock divider if needed and possible */ |
259 | if ((data->fan_status[nr] & 0x04) /* overflow flag */ |
260 | || (data->fan[nr] >= 224)) { /* next to overflow */ |
261 | if ((data->fan_status[nr] & 0x60) != 0x60) { |
262 | data->fan_status[nr] += 0x20; |
263 | data->fan_min[nr] >>= 1; |
264 | data->fan[nr] >>= 1; |
265 | dev_dbg(dev, |
266 | "Increasing clock divider to %d for fan %d\n" , |
267 | FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); |
268 | } |
269 | } else { |
270 | /* Decrease clock divider if possible */ |
271 | while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ |
272 | && data->fan[nr] < 85 /* bad accuracy */ |
273 | && (data->fan_status[nr] & 0x60) != 0x00) { |
274 | data->fan_status[nr] -= 0x20; |
275 | data->fan_min[nr] <<= 1; |
276 | data->fan[nr] <<= 1; |
277 | dev_dbg(dev, |
278 | "Decreasing clock divider to %d for fan %d\n" , |
279 | FAN_DIV_FROM_REG(data->fan_status[nr]), |
280 | nr + 1); |
281 | } |
282 | } |
283 | |
284 | /* Write new fan min if it changed */ |
285 | if (old_min != data->fan_min[nr]) { |
286 | pc87360_write_value(data, LD_FAN, NO_BANK, |
287 | PC87360_REG_FAN_MIN(nr), |
288 | value: data->fan_min[nr]); |
289 | } |
290 | } |
291 | |
292 | static struct pc87360_data *pc87360_update_device(struct device *dev) |
293 | { |
294 | struct pc87360_data *data = dev_get_drvdata(dev); |
295 | u8 i; |
296 | |
297 | mutex_lock(&data->update_lock); |
298 | |
299 | if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { |
300 | dev_dbg(dev, "Data update\n" ); |
301 | |
302 | /* Fans */ |
303 | for (i = 0; i < data->fannr; i++) { |
304 | if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { |
305 | data->fan_status[i] = |
306 | pc87360_read_value(data, LD_FAN, |
307 | NO_BANK, PC87360_REG_FAN_STATUS(i)); |
308 | data->fan[i] = pc87360_read_value(data, LD_FAN, |
309 | NO_BANK, PC87360_REG_FAN(i)); |
310 | data->fan_min[i] = pc87360_read_value(data, |
311 | LD_FAN, NO_BANK, |
312 | PC87360_REG_FAN_MIN(i)); |
313 | /* Change clock divider if needed */ |
314 | pc87360_autodiv(dev, nr: i); |
315 | /* Clear bits and write new divider */ |
316 | pc87360_write_value(data, LD_FAN, NO_BANK, |
317 | PC87360_REG_FAN_STATUS(i), |
318 | value: data->fan_status[i]); |
319 | } |
320 | if (FAN_CONFIG_CONTROL(data->fan_conf, i)) |
321 | data->pwm[i] = pc87360_read_value(data, LD_FAN, |
322 | NO_BANK, PC87360_REG_PWM(i)); |
323 | } |
324 | |
325 | /* Voltages */ |
326 | /* |
327 | * The min() below does not have any practical meaning and is |
328 | * only needed to silence a warning observed with gcc 12+. |
329 | */ |
330 | for (i = 0; i < min(data->innr, ARRAY_SIZE(data->in)); i++) { |
331 | data->in_status[i] = pc87360_read_value(data, LD_IN, bank: i, |
332 | PC87365_REG_IN_STATUS); |
333 | /* Clear bits */ |
334 | pc87360_write_value(data, LD_IN, bank: i, |
335 | PC87365_REG_IN_STATUS, |
336 | value: data->in_status[i]); |
337 | if ((data->in_status[i] & CHAN_READY) == CHAN_READY) { |
338 | data->in[i] = pc87360_read_value(data, LD_IN, |
339 | bank: i, PC87365_REG_IN); |
340 | } |
341 | if (data->in_status[i] & CHAN_ENA) { |
342 | data->in_min[i] = pc87360_read_value(data, |
343 | LD_IN, bank: i, |
344 | PC87365_REG_IN_MIN); |
345 | data->in_max[i] = pc87360_read_value(data, |
346 | LD_IN, bank: i, |
347 | PC87365_REG_IN_MAX); |
348 | if (i >= 11) |
349 | data->in_crit[i-11] = |
350 | pc87360_read_value(data, LD_IN, |
351 | bank: i, PC87365_REG_TEMP_CRIT); |
352 | } |
353 | } |
354 | if (data->innr) { |
355 | data->in_alarms = pc87360_read_value(data, LD_IN, |
356 | NO_BANK, PC87365_REG_IN_ALARMS1) |
357 | | ((pc87360_read_value(data, LD_IN, |
358 | NO_BANK, PC87365_REG_IN_ALARMS2) |
359 | & 0x07) << 8); |
360 | data->vid = (data->vid_conf & 0xE0) ? |
361 | pc87360_read_value(data, LD_IN, |
362 | NO_BANK, PC87365_REG_VID) : 0x1F; |
363 | } |
364 | |
365 | /* Temperatures */ |
366 | for (i = 0; i < data->tempnr; i++) { |
367 | data->temp_status[i] = pc87360_read_value(data, |
368 | LD_TEMP, bank: i, |
369 | PC87365_REG_TEMP_STATUS); |
370 | /* Clear bits */ |
371 | pc87360_write_value(data, LD_TEMP, bank: i, |
372 | PC87365_REG_TEMP_STATUS, |
373 | value: data->temp_status[i]); |
374 | if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) { |
375 | data->temp[i] = pc87360_read_value(data, |
376 | LD_TEMP, bank: i, |
377 | PC87365_REG_TEMP); |
378 | } |
379 | if (data->temp_status[i] & CHAN_ENA) { |
380 | data->temp_min[i] = pc87360_read_value(data, |
381 | LD_TEMP, bank: i, |
382 | PC87365_REG_TEMP_MIN); |
383 | data->temp_max[i] = pc87360_read_value(data, |
384 | LD_TEMP, bank: i, |
385 | PC87365_REG_TEMP_MAX); |
386 | data->temp_crit[i] = pc87360_read_value(data, |
387 | LD_TEMP, bank: i, |
388 | PC87365_REG_TEMP_CRIT); |
389 | } |
390 | } |
391 | if (data->tempnr) { |
392 | data->temp_alarms = pc87360_read_value(data, LD_TEMP, |
393 | NO_BANK, PC87365_REG_TEMP_ALARMS) |
394 | & 0x3F; |
395 | } |
396 | |
397 | data->last_updated = jiffies; |
398 | data->valid = true; |
399 | } |
400 | |
401 | mutex_unlock(lock: &data->update_lock); |
402 | |
403 | return data; |
404 | } |
405 | |
406 | static ssize_t in_input_show(struct device *dev, |
407 | struct device_attribute *devattr, char *buf) |
408 | { |
409 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
410 | struct pc87360_data *data = pc87360_update_device(dev); |
411 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in[attr->index], |
412 | data->in_vref)); |
413 | } |
414 | |
415 | static struct sensor_device_attribute in_input[] = { |
416 | SENSOR_ATTR_RO(in0_input, in_input, 0), |
417 | SENSOR_ATTR_RO(in1_input, in_input, 1), |
418 | SENSOR_ATTR_RO(in2_input, in_input, 2), |
419 | SENSOR_ATTR_RO(in3_input, in_input, 3), |
420 | SENSOR_ATTR_RO(in4_input, in_input, 4), |
421 | SENSOR_ATTR_RO(in5_input, in_input, 5), |
422 | SENSOR_ATTR_RO(in6_input, in_input, 6), |
423 | SENSOR_ATTR_RO(in7_input, in_input, 7), |
424 | SENSOR_ATTR_RO(in8_input, in_input, 8), |
425 | SENSOR_ATTR_RO(in9_input, in_input, 9), |
426 | SENSOR_ATTR_RO(in10_input, in_input, 10), |
427 | }; |
428 | |
429 | static ssize_t in_status_show(struct device *dev, |
430 | struct device_attribute *devattr, char *buf) |
431 | { |
432 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
433 | struct pc87360_data *data = pc87360_update_device(dev); |
434 | return sprintf(buf, fmt: "%u\n" , data->in_status[attr->index]); |
435 | } |
436 | |
437 | static struct sensor_device_attribute in_status[] = { |
438 | SENSOR_ATTR_RO(in0_status, in_status, 0), |
439 | SENSOR_ATTR_RO(in1_status, in_status, 1), |
440 | SENSOR_ATTR_RO(in2_status, in_status, 2), |
441 | SENSOR_ATTR_RO(in3_status, in_status, 3), |
442 | SENSOR_ATTR_RO(in4_status, in_status, 4), |
443 | SENSOR_ATTR_RO(in5_status, in_status, 5), |
444 | SENSOR_ATTR_RO(in6_status, in_status, 6), |
445 | SENSOR_ATTR_RO(in7_status, in_status, 7), |
446 | SENSOR_ATTR_RO(in8_status, in_status, 8), |
447 | SENSOR_ATTR_RO(in9_status, in_status, 9), |
448 | SENSOR_ATTR_RO(in10_status, in_status, 10), |
449 | }; |
450 | |
451 | static ssize_t in_min_show(struct device *dev, |
452 | struct device_attribute *devattr, char *buf) |
453 | { |
454 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
455 | struct pc87360_data *data = pc87360_update_device(dev); |
456 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in_min[attr->index], |
457 | data->in_vref)); |
458 | } |
459 | |
460 | static ssize_t in_min_store(struct device *dev, |
461 | struct device_attribute *devattr, const char *buf, |
462 | size_t count) |
463 | { |
464 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
465 | struct pc87360_data *data = dev_get_drvdata(dev); |
466 | long val; |
467 | int err; |
468 | |
469 | err = kstrtol(s: buf, base: 10, res: &val); |
470 | if (err) |
471 | return err; |
472 | |
473 | mutex_lock(&data->update_lock); |
474 | data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); |
475 | pc87360_write_value(data, LD_IN, bank: attr->index, PC87365_REG_IN_MIN, |
476 | value: data->in_min[attr->index]); |
477 | mutex_unlock(lock: &data->update_lock); |
478 | return count; |
479 | } |
480 | |
481 | static struct sensor_device_attribute in_min[] = { |
482 | SENSOR_ATTR_RW(in0_min, in_min, 0), |
483 | SENSOR_ATTR_RW(in1_min, in_min, 1), |
484 | SENSOR_ATTR_RW(in2_min, in_min, 2), |
485 | SENSOR_ATTR_RW(in3_min, in_min, 3), |
486 | SENSOR_ATTR_RW(in4_min, in_min, 4), |
487 | SENSOR_ATTR_RW(in5_min, in_min, 5), |
488 | SENSOR_ATTR_RW(in6_min, in_min, 6), |
489 | SENSOR_ATTR_RW(in7_min, in_min, 7), |
490 | SENSOR_ATTR_RW(in8_min, in_min, 8), |
491 | SENSOR_ATTR_RW(in9_min, in_min, 9), |
492 | SENSOR_ATTR_RW(in10_min, in_min, 10), |
493 | }; |
494 | |
495 | static ssize_t in_max_show(struct device *dev, |
496 | struct device_attribute *devattr, char *buf) |
497 | { |
498 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
499 | struct pc87360_data *data = pc87360_update_device(dev); |
500 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in_max[attr->index], |
501 | data->in_vref)); |
502 | } |
503 | |
504 | static ssize_t in_max_store(struct device *dev, |
505 | struct device_attribute *devattr, const char *buf, |
506 | size_t count) |
507 | { |
508 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
509 | struct pc87360_data *data = dev_get_drvdata(dev); |
510 | long val; |
511 | int err; |
512 | |
513 | err = kstrtol(s: buf, base: 10, res: &val); |
514 | if (err) |
515 | return err; |
516 | |
517 | mutex_lock(&data->update_lock); |
518 | data->in_max[attr->index] = IN_TO_REG(val, |
519 | data->in_vref); |
520 | pc87360_write_value(data, LD_IN, bank: attr->index, PC87365_REG_IN_MAX, |
521 | value: data->in_max[attr->index]); |
522 | mutex_unlock(lock: &data->update_lock); |
523 | return count; |
524 | } |
525 | |
526 | static struct sensor_device_attribute in_max[] = { |
527 | SENSOR_ATTR_RW(in0_max, in_max, 0), |
528 | SENSOR_ATTR_RW(in1_max, in_max, 1), |
529 | SENSOR_ATTR_RW(in2_max, in_max, 2), |
530 | SENSOR_ATTR_RW(in3_max, in_max, 3), |
531 | SENSOR_ATTR_RW(in4_max, in_max, 4), |
532 | SENSOR_ATTR_RW(in5_max, in_max, 5), |
533 | SENSOR_ATTR_RW(in6_max, in_max, 6), |
534 | SENSOR_ATTR_RW(in7_max, in_max, 7), |
535 | SENSOR_ATTR_RW(in8_max, in_max, 8), |
536 | SENSOR_ATTR_RW(in9_max, in_max, 9), |
537 | SENSOR_ATTR_RW(in10_max, in_max, 10), |
538 | }; |
539 | |
540 | /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */ |
541 | #define CHAN_ALM_MIN 0x02 /* min limit crossed */ |
542 | #define CHAN_ALM_MAX 0x04 /* max limit exceeded */ |
543 | #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */ |
544 | |
545 | /* |
546 | * show_in_min/max_alarm() reads data from the per-channel status |
547 | * register (sec 11.5.12), not the vin event status registers (sec |
548 | * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) |
549 | */ |
550 | |
551 | static ssize_t in_min_alarm_show(struct device *dev, |
552 | struct device_attribute *devattr, char *buf) |
553 | { |
554 | struct pc87360_data *data = pc87360_update_device(dev); |
555 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
556 | |
557 | return sprintf(buf, fmt: "%u\n" , !!(data->in_status[nr] & CHAN_ALM_MIN)); |
558 | } |
559 | |
560 | static struct sensor_device_attribute in_min_alarm[] = { |
561 | SENSOR_ATTR_RO(in0_min_alarm, in_min_alarm, 0), |
562 | SENSOR_ATTR_RO(in1_min_alarm, in_min_alarm, 1), |
563 | SENSOR_ATTR_RO(in2_min_alarm, in_min_alarm, 2), |
564 | SENSOR_ATTR_RO(in3_min_alarm, in_min_alarm, 3), |
565 | SENSOR_ATTR_RO(in4_min_alarm, in_min_alarm, 4), |
566 | SENSOR_ATTR_RO(in5_min_alarm, in_min_alarm, 5), |
567 | SENSOR_ATTR_RO(in6_min_alarm, in_min_alarm, 6), |
568 | SENSOR_ATTR_RO(in7_min_alarm, in_min_alarm, 7), |
569 | SENSOR_ATTR_RO(in8_min_alarm, in_min_alarm, 8), |
570 | SENSOR_ATTR_RO(in9_min_alarm, in_min_alarm, 9), |
571 | SENSOR_ATTR_RO(in10_min_alarm, in_min_alarm, 10), |
572 | }; |
573 | |
574 | static ssize_t in_max_alarm_show(struct device *dev, |
575 | struct device_attribute *devattr, char *buf) |
576 | { |
577 | struct pc87360_data *data = pc87360_update_device(dev); |
578 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
579 | |
580 | return sprintf(buf, fmt: "%u\n" , !!(data->in_status[nr] & CHAN_ALM_MAX)); |
581 | } |
582 | |
583 | static struct sensor_device_attribute in_max_alarm[] = { |
584 | SENSOR_ATTR_RO(in0_max_alarm, in_max_alarm, 0), |
585 | SENSOR_ATTR_RO(in1_max_alarm, in_max_alarm, 1), |
586 | SENSOR_ATTR_RO(in2_max_alarm, in_max_alarm, 2), |
587 | SENSOR_ATTR_RO(in3_max_alarm, in_max_alarm, 3), |
588 | SENSOR_ATTR_RO(in4_max_alarm, in_max_alarm, 4), |
589 | SENSOR_ATTR_RO(in5_max_alarm, in_max_alarm, 5), |
590 | SENSOR_ATTR_RO(in6_max_alarm, in_max_alarm, 6), |
591 | SENSOR_ATTR_RO(in7_max_alarm, in_max_alarm, 7), |
592 | SENSOR_ATTR_RO(in8_max_alarm, in_max_alarm, 8), |
593 | SENSOR_ATTR_RO(in9_max_alarm, in_max_alarm, 9), |
594 | SENSOR_ATTR_RO(in10_max_alarm, in_max_alarm, 10), |
595 | }; |
596 | |
597 | #define VIN_UNIT_ATTRS(X) \ |
598 | &in_input[X].dev_attr.attr, \ |
599 | &in_status[X].dev_attr.attr, \ |
600 | &in_min[X].dev_attr.attr, \ |
601 | &in_max[X].dev_attr.attr, \ |
602 | &in_min_alarm[X].dev_attr.attr, \ |
603 | &in_max_alarm[X].dev_attr.attr |
604 | |
605 | static ssize_t cpu0_vid_show(struct device *dev, |
606 | struct device_attribute *attr, char *buf) |
607 | { |
608 | struct pc87360_data *data = pc87360_update_device(dev); |
609 | return sprintf(buf, fmt: "%u\n" , vid_from_reg(val: data->vid, vrm: data->vrm)); |
610 | } |
611 | static DEVICE_ATTR_RO(cpu0_vid); |
612 | |
613 | static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
614 | char *buf) |
615 | { |
616 | struct pc87360_data *data = dev_get_drvdata(dev); |
617 | return sprintf(buf, fmt: "%u\n" , data->vrm); |
618 | } |
619 | |
620 | static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
621 | const char *buf, size_t count) |
622 | { |
623 | struct pc87360_data *data = dev_get_drvdata(dev); |
624 | unsigned long val; |
625 | int err; |
626 | |
627 | err = kstrtoul(s: buf, base: 10, res: &val); |
628 | if (err) |
629 | return err; |
630 | |
631 | if (val > 255) |
632 | return -EINVAL; |
633 | |
634 | data->vrm = val; |
635 | return count; |
636 | } |
637 | static DEVICE_ATTR_RW(vrm); |
638 | |
639 | static ssize_t alarms_in_show(struct device *dev, |
640 | struct device_attribute *attr, char *buf) |
641 | { |
642 | struct pc87360_data *data = pc87360_update_device(dev); |
643 | return sprintf(buf, fmt: "%u\n" , data->in_alarms); |
644 | } |
645 | static DEVICE_ATTR_RO(alarms_in); |
646 | |
647 | static struct attribute *pc8736x_vin_attr_array[] = { |
648 | VIN_UNIT_ATTRS(0), |
649 | VIN_UNIT_ATTRS(1), |
650 | VIN_UNIT_ATTRS(2), |
651 | VIN_UNIT_ATTRS(3), |
652 | VIN_UNIT_ATTRS(4), |
653 | VIN_UNIT_ATTRS(5), |
654 | VIN_UNIT_ATTRS(6), |
655 | VIN_UNIT_ATTRS(7), |
656 | VIN_UNIT_ATTRS(8), |
657 | VIN_UNIT_ATTRS(9), |
658 | VIN_UNIT_ATTRS(10), |
659 | &dev_attr_cpu0_vid.attr, |
660 | &dev_attr_vrm.attr, |
661 | &dev_attr_alarms_in.attr, |
662 | NULL |
663 | }; |
664 | static const struct attribute_group pc8736x_vin_group = { |
665 | .attrs = pc8736x_vin_attr_array, |
666 | }; |
667 | |
668 | static ssize_t therm_input_show(struct device *dev, |
669 | struct device_attribute *devattr, char *buf) |
670 | { |
671 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
672 | struct pc87360_data *data = pc87360_update_device(dev); |
673 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in[attr->index], |
674 | data->in_vref)); |
675 | } |
676 | |
677 | /* |
678 | * the +11 term below reflects the fact that VLM units 11,12,13 are |
679 | * used in the chip to measure voltage across the thermistors |
680 | */ |
681 | static struct sensor_device_attribute therm_input[] = { |
682 | SENSOR_ATTR_RO(temp4_input, therm_input, 0 + 11), |
683 | SENSOR_ATTR_RO(temp5_input, therm_input, 1 + 11), |
684 | SENSOR_ATTR_RO(temp6_input, therm_input, 2 + 11), |
685 | }; |
686 | |
687 | static ssize_t therm_status_show(struct device *dev, |
688 | struct device_attribute *devattr, char *buf) |
689 | { |
690 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
691 | struct pc87360_data *data = pc87360_update_device(dev); |
692 | return sprintf(buf, fmt: "%u\n" , data->in_status[attr->index]); |
693 | } |
694 | |
695 | static struct sensor_device_attribute therm_status[] = { |
696 | SENSOR_ATTR_RO(temp4_status, therm_status, 0 + 11), |
697 | SENSOR_ATTR_RO(temp5_status, therm_status, 1 + 11), |
698 | SENSOR_ATTR_RO(temp6_status, therm_status, 2 + 11), |
699 | }; |
700 | |
701 | static ssize_t therm_min_show(struct device *dev, |
702 | struct device_attribute *devattr, char *buf) |
703 | { |
704 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
705 | struct pc87360_data *data = pc87360_update_device(dev); |
706 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in_min[attr->index], |
707 | data->in_vref)); |
708 | } |
709 | |
710 | static ssize_t therm_min_store(struct device *dev, |
711 | struct device_attribute *devattr, |
712 | const char *buf, size_t count) |
713 | { |
714 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
715 | struct pc87360_data *data = dev_get_drvdata(dev); |
716 | long val; |
717 | int err; |
718 | |
719 | err = kstrtol(s: buf, base: 10, res: &val); |
720 | if (err) |
721 | return err; |
722 | |
723 | mutex_lock(&data->update_lock); |
724 | data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); |
725 | pc87360_write_value(data, LD_IN, bank: attr->index, PC87365_REG_TEMP_MIN, |
726 | value: data->in_min[attr->index]); |
727 | mutex_unlock(lock: &data->update_lock); |
728 | return count; |
729 | } |
730 | |
731 | static struct sensor_device_attribute therm_min[] = { |
732 | SENSOR_ATTR_RW(temp4_min, therm_min, 0 + 11), |
733 | SENSOR_ATTR_RW(temp5_min, therm_min, 1 + 11), |
734 | SENSOR_ATTR_RW(temp6_min, therm_min, 2 + 11), |
735 | }; |
736 | |
737 | static ssize_t therm_max_show(struct device *dev, |
738 | struct device_attribute *devattr, char *buf) |
739 | { |
740 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
741 | struct pc87360_data *data = pc87360_update_device(dev); |
742 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in_max[attr->index], |
743 | data->in_vref)); |
744 | } |
745 | |
746 | static ssize_t therm_max_store(struct device *dev, |
747 | struct device_attribute *devattr, |
748 | const char *buf, size_t count) |
749 | { |
750 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
751 | struct pc87360_data *data = dev_get_drvdata(dev); |
752 | long val; |
753 | int err; |
754 | |
755 | err = kstrtol(s: buf, base: 10, res: &val); |
756 | if (err) |
757 | return err; |
758 | |
759 | mutex_lock(&data->update_lock); |
760 | data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); |
761 | pc87360_write_value(data, LD_IN, bank: attr->index, PC87365_REG_TEMP_MAX, |
762 | value: data->in_max[attr->index]); |
763 | mutex_unlock(lock: &data->update_lock); |
764 | return count; |
765 | } |
766 | |
767 | static struct sensor_device_attribute therm_max[] = { |
768 | SENSOR_ATTR_RW(temp4_max, therm_max, 0 + 11), |
769 | SENSOR_ATTR_RW(temp5_max, therm_max, 1 + 11), |
770 | SENSOR_ATTR_RW(temp6_max, therm_max, 2 + 11), |
771 | }; |
772 | |
773 | static ssize_t therm_crit_show(struct device *dev, |
774 | struct device_attribute *devattr, char *buf) |
775 | { |
776 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
777 | struct pc87360_data *data = pc87360_update_device(dev); |
778 | return sprintf(buf, fmt: "%u\n" , IN_FROM_REG(data->in_crit[attr->index-11], |
779 | data->in_vref)); |
780 | } |
781 | |
782 | static ssize_t therm_crit_store(struct device *dev, |
783 | struct device_attribute *devattr, |
784 | const char *buf, size_t count) |
785 | { |
786 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
787 | struct pc87360_data *data = dev_get_drvdata(dev); |
788 | long val; |
789 | int err; |
790 | |
791 | err = kstrtol(s: buf, base: 10, res: &val); |
792 | if (err) |
793 | return err; |
794 | |
795 | mutex_lock(&data->update_lock); |
796 | data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); |
797 | pc87360_write_value(data, LD_IN, bank: attr->index, PC87365_REG_TEMP_CRIT, |
798 | value: data->in_crit[attr->index-11]); |
799 | mutex_unlock(lock: &data->update_lock); |
800 | return count; |
801 | } |
802 | |
803 | static struct sensor_device_attribute therm_crit[] = { |
804 | SENSOR_ATTR_RW(temp4_crit, therm_crit, 0 + 11), |
805 | SENSOR_ATTR_RW(temp5_crit, therm_crit, 1 + 11), |
806 | SENSOR_ATTR_RW(temp6_crit, therm_crit, 2 + 11), |
807 | }; |
808 | |
809 | /* |
810 | * show_therm_min/max_alarm() reads data from the per-channel voltage |
811 | * status register (sec 11.5.12) |
812 | */ |
813 | static ssize_t therm_min_alarm_show(struct device *dev, |
814 | struct device_attribute *devattr, |
815 | char *buf) |
816 | { |
817 | struct pc87360_data *data = pc87360_update_device(dev); |
818 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
819 | |
820 | return sprintf(buf, fmt: "%u\n" , !!(data->in_status[nr] & CHAN_ALM_MIN)); |
821 | } |
822 | |
823 | static struct sensor_device_attribute therm_min_alarm[] = { |
824 | SENSOR_ATTR_RO(temp4_min_alarm, therm_min_alarm, 0 + 11), |
825 | SENSOR_ATTR_RO(temp5_min_alarm, therm_min_alarm, 1 + 11), |
826 | SENSOR_ATTR_RO(temp6_min_alarm, therm_min_alarm, 2 + 11), |
827 | }; |
828 | |
829 | static ssize_t therm_max_alarm_show(struct device *dev, |
830 | struct device_attribute *devattr, |
831 | char *buf) |
832 | { |
833 | struct pc87360_data *data = pc87360_update_device(dev); |
834 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
835 | |
836 | return sprintf(buf, fmt: "%u\n" , !!(data->in_status[nr] & CHAN_ALM_MAX)); |
837 | } |
838 | |
839 | static struct sensor_device_attribute therm_max_alarm[] = { |
840 | SENSOR_ATTR_RO(temp4_max_alarm, therm_max_alarm, 0 + 11), |
841 | SENSOR_ATTR_RO(temp5_max_alarm, therm_max_alarm, 1 + 11), |
842 | SENSOR_ATTR_RO(temp6_max_alarm, therm_max_alarm, 2 + 11), |
843 | }; |
844 | |
845 | static ssize_t therm_crit_alarm_show(struct device *dev, |
846 | struct device_attribute *devattr, |
847 | char *buf) |
848 | { |
849 | struct pc87360_data *data = pc87360_update_device(dev); |
850 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
851 | |
852 | return sprintf(buf, fmt: "%u\n" , !!(data->in_status[nr] & TEMP_ALM_CRIT)); |
853 | } |
854 | |
855 | static struct sensor_device_attribute therm_crit_alarm[] = { |
856 | SENSOR_ATTR_RO(temp4_crit_alarm, therm_crit_alarm, 0 + 11), |
857 | SENSOR_ATTR_RO(temp5_crit_alarm, therm_crit_alarm, 1 + 11), |
858 | SENSOR_ATTR_RO(temp6_crit_alarm, therm_crit_alarm, 2 + 11), |
859 | }; |
860 | |
861 | #define THERM_UNIT_ATTRS(X) \ |
862 | &therm_input[X].dev_attr.attr, \ |
863 | &therm_status[X].dev_attr.attr, \ |
864 | &therm_min[X].dev_attr.attr, \ |
865 | &therm_max[X].dev_attr.attr, \ |
866 | &therm_crit[X].dev_attr.attr, \ |
867 | &therm_min_alarm[X].dev_attr.attr, \ |
868 | &therm_max_alarm[X].dev_attr.attr, \ |
869 | &therm_crit_alarm[X].dev_attr.attr |
870 | |
871 | static struct attribute *pc8736x_therm_attr_array[] = { |
872 | THERM_UNIT_ATTRS(0), |
873 | THERM_UNIT_ATTRS(1), |
874 | THERM_UNIT_ATTRS(2), |
875 | NULL |
876 | }; |
877 | static const struct attribute_group pc8736x_therm_group = { |
878 | .attrs = pc8736x_therm_attr_array, |
879 | }; |
880 | |
881 | static ssize_t temp_input_show(struct device *dev, |
882 | struct device_attribute *devattr, char *buf) |
883 | { |
884 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
885 | struct pc87360_data *data = pc87360_update_device(dev); |
886 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->temp[attr->index])); |
887 | } |
888 | |
889 | static struct sensor_device_attribute temp_input[] = { |
890 | SENSOR_ATTR_RO(temp1_input, temp_input, 0), |
891 | SENSOR_ATTR_RO(temp2_input, temp_input, 1), |
892 | SENSOR_ATTR_RO(temp3_input, temp_input, 2), |
893 | }; |
894 | |
895 | static ssize_t temp_status_show(struct device *dev, |
896 | struct device_attribute *devattr, char *buf) |
897 | { |
898 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
899 | struct pc87360_data *data = pc87360_update_device(dev); |
900 | return sprintf(buf, fmt: "%d\n" , data->temp_status[attr->index]); |
901 | } |
902 | |
903 | static struct sensor_device_attribute temp_status[] = { |
904 | SENSOR_ATTR_RO(temp1_status, temp_status, 0), |
905 | SENSOR_ATTR_RO(temp2_status, temp_status, 1), |
906 | SENSOR_ATTR_RO(temp3_status, temp_status, 2), |
907 | }; |
908 | |
909 | static ssize_t temp_min_show(struct device *dev, |
910 | struct device_attribute *devattr, char *buf) |
911 | { |
912 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
913 | struct pc87360_data *data = pc87360_update_device(dev); |
914 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->temp_min[attr->index])); |
915 | } |
916 | |
917 | static ssize_t temp_min_store(struct device *dev, |
918 | struct device_attribute *devattr, |
919 | const char *buf, size_t count) |
920 | { |
921 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
922 | struct pc87360_data *data = dev_get_drvdata(dev); |
923 | long val; |
924 | int err; |
925 | |
926 | err = kstrtol(s: buf, base: 10, res: &val); |
927 | if (err) |
928 | return err; |
929 | |
930 | mutex_lock(&data->update_lock); |
931 | data->temp_min[attr->index] = TEMP_TO_REG(val); |
932 | pc87360_write_value(data, LD_TEMP, bank: attr->index, PC87365_REG_TEMP_MIN, |
933 | value: data->temp_min[attr->index]); |
934 | mutex_unlock(lock: &data->update_lock); |
935 | return count; |
936 | } |
937 | |
938 | static struct sensor_device_attribute temp_min[] = { |
939 | SENSOR_ATTR_RW(temp1_min, temp_min, 0), |
940 | SENSOR_ATTR_RW(temp2_min, temp_min, 1), |
941 | SENSOR_ATTR_RW(temp3_min, temp_min, 2), |
942 | }; |
943 | |
944 | static ssize_t temp_max_show(struct device *dev, |
945 | struct device_attribute *devattr, char *buf) |
946 | { |
947 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
948 | struct pc87360_data *data = pc87360_update_device(dev); |
949 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->temp_max[attr->index])); |
950 | } |
951 | |
952 | static ssize_t temp_max_store(struct device *dev, |
953 | struct device_attribute *devattr, |
954 | const char *buf, size_t count) |
955 | { |
956 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
957 | struct pc87360_data *data = dev_get_drvdata(dev); |
958 | long val; |
959 | int err; |
960 | |
961 | err = kstrtol(s: buf, base: 10, res: &val); |
962 | if (err) |
963 | return err; |
964 | |
965 | mutex_lock(&data->update_lock); |
966 | data->temp_max[attr->index] = TEMP_TO_REG(val); |
967 | pc87360_write_value(data, LD_TEMP, bank: attr->index, PC87365_REG_TEMP_MAX, |
968 | value: data->temp_max[attr->index]); |
969 | mutex_unlock(lock: &data->update_lock); |
970 | return count; |
971 | } |
972 | |
973 | static struct sensor_device_attribute temp_max[] = { |
974 | SENSOR_ATTR_RW(temp1_max, temp_max, 0), |
975 | SENSOR_ATTR_RW(temp2_max, temp_max, 1), |
976 | SENSOR_ATTR_RW(temp3_max, temp_max, 2), |
977 | }; |
978 | |
979 | static ssize_t temp_crit_show(struct device *dev, |
980 | struct device_attribute *devattr, char *buf) |
981 | { |
982 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
983 | struct pc87360_data *data = pc87360_update_device(dev); |
984 | return sprintf(buf, fmt: "%d\n" , |
985 | TEMP_FROM_REG(data->temp_crit[attr->index])); |
986 | } |
987 | |
988 | static ssize_t temp_crit_store(struct device *dev, |
989 | struct device_attribute *devattr, |
990 | const char *buf, size_t count) |
991 | { |
992 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
993 | struct pc87360_data *data = dev_get_drvdata(dev); |
994 | long val; |
995 | int err; |
996 | |
997 | err = kstrtol(s: buf, base: 10, res: &val); |
998 | if (err) |
999 | return err; |
1000 | |
1001 | mutex_lock(&data->update_lock); |
1002 | data->temp_crit[attr->index] = TEMP_TO_REG(val); |
1003 | pc87360_write_value(data, LD_TEMP, bank: attr->index, PC87365_REG_TEMP_CRIT, |
1004 | value: data->temp_crit[attr->index]); |
1005 | mutex_unlock(lock: &data->update_lock); |
1006 | return count; |
1007 | } |
1008 | |
1009 | static struct sensor_device_attribute temp_crit[] = { |
1010 | SENSOR_ATTR_RW(temp1_crit, temp_crit, 0), |
1011 | SENSOR_ATTR_RW(temp2_crit, temp_crit, 1), |
1012 | SENSOR_ATTR_RW(temp3_crit, temp_crit, 2), |
1013 | }; |
1014 | |
1015 | /* |
1016 | * temp_min/max_alarm_show() reads data from the per-channel status |
1017 | * register (sec 12.3.7), not the temp event status registers (sec |
1018 | * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) |
1019 | */ |
1020 | static ssize_t temp_min_alarm_show(struct device *dev, |
1021 | struct device_attribute *devattr, |
1022 | char *buf) |
1023 | { |
1024 | struct pc87360_data *data = pc87360_update_device(dev); |
1025 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
1026 | |
1027 | return sprintf(buf, fmt: "%u\n" , !!(data->temp_status[nr] & CHAN_ALM_MIN)); |
1028 | } |
1029 | |
1030 | static struct sensor_device_attribute temp_min_alarm[] = { |
1031 | SENSOR_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0), |
1032 | SENSOR_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1), |
1033 | SENSOR_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2), |
1034 | }; |
1035 | |
1036 | static ssize_t temp_max_alarm_show(struct device *dev, |
1037 | struct device_attribute *devattr, |
1038 | char *buf) |
1039 | { |
1040 | struct pc87360_data *data = pc87360_update_device(dev); |
1041 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
1042 | |
1043 | return sprintf(buf, fmt: "%u\n" , !!(data->temp_status[nr] & CHAN_ALM_MAX)); |
1044 | } |
1045 | |
1046 | static struct sensor_device_attribute temp_max_alarm[] = { |
1047 | SENSOR_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0), |
1048 | SENSOR_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1), |
1049 | SENSOR_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2), |
1050 | }; |
1051 | |
1052 | static ssize_t temp_crit_alarm_show(struct device *dev, |
1053 | struct device_attribute *devattr, |
1054 | char *buf) |
1055 | { |
1056 | struct pc87360_data *data = pc87360_update_device(dev); |
1057 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
1058 | |
1059 | return sprintf(buf, fmt: "%u\n" , !!(data->temp_status[nr] & TEMP_ALM_CRIT)); |
1060 | } |
1061 | |
1062 | static struct sensor_device_attribute temp_crit_alarm[] = { |
1063 | SENSOR_ATTR_RO(temp1_crit_alarm, temp_crit_alarm, 0), |
1064 | SENSOR_ATTR_RO(temp2_crit_alarm, temp_crit_alarm, 1), |
1065 | SENSOR_ATTR_RO(temp3_crit_alarm, temp_crit_alarm, 2), |
1066 | }; |
1067 | |
1068 | #define TEMP_FAULT 0x40 /* open diode */ |
1069 | static ssize_t temp_fault_show(struct device *dev, |
1070 | struct device_attribute *devattr, char *buf) |
1071 | { |
1072 | struct pc87360_data *data = pc87360_update_device(dev); |
1073 | unsigned nr = to_sensor_dev_attr(devattr)->index; |
1074 | |
1075 | return sprintf(buf, fmt: "%u\n" , !!(data->temp_status[nr] & TEMP_FAULT)); |
1076 | } |
1077 | |
1078 | static struct sensor_device_attribute temp_fault[] = { |
1079 | SENSOR_ATTR_RO(temp1_fault, temp_fault, 0), |
1080 | SENSOR_ATTR_RO(temp2_fault, temp_fault, 1), |
1081 | SENSOR_ATTR_RO(temp3_fault, temp_fault, 2), |
1082 | }; |
1083 | |
1084 | #define TEMP_UNIT_ATTRS(X) \ |
1085 | { &temp_input[X].dev_attr.attr, \ |
1086 | &temp_status[X].dev_attr.attr, \ |
1087 | &temp_min[X].dev_attr.attr, \ |
1088 | &temp_max[X].dev_attr.attr, \ |
1089 | &temp_crit[X].dev_attr.attr, \ |
1090 | &temp_min_alarm[X].dev_attr.attr, \ |
1091 | &temp_max_alarm[X].dev_attr.attr, \ |
1092 | &temp_crit_alarm[X].dev_attr.attr, \ |
1093 | &temp_fault[X].dev_attr.attr, \ |
1094 | NULL \ |
1095 | } |
1096 | |
1097 | static struct attribute *pc8736x_temp_attr[][10] = { |
1098 | TEMP_UNIT_ATTRS(0), |
1099 | TEMP_UNIT_ATTRS(1), |
1100 | TEMP_UNIT_ATTRS(2) |
1101 | }; |
1102 | |
1103 | static const struct attribute_group pc8736x_temp_attr_group[] = { |
1104 | { .attrs = pc8736x_temp_attr[0] }, |
1105 | { .attrs = pc8736x_temp_attr[1] }, |
1106 | { .attrs = pc8736x_temp_attr[2] } |
1107 | }; |
1108 | |
1109 | static ssize_t alarms_temp_show(struct device *dev, |
1110 | struct device_attribute *attr, char *buf) |
1111 | { |
1112 | struct pc87360_data *data = pc87360_update_device(dev); |
1113 | return sprintf(buf, fmt: "%u\n" , data->temp_alarms); |
1114 | } |
1115 | |
1116 | static DEVICE_ATTR_RO(alarms_temp); |
1117 | |
1118 | static ssize_t fan_input_show(struct device *dev, |
1119 | struct device_attribute *devattr, char *buf) |
1120 | { |
1121 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1122 | struct pc87360_data *data = pc87360_update_device(dev); |
1123 | return sprintf(buf, fmt: "%u\n" , FAN_FROM_REG(data->fan[attr->index], |
1124 | FAN_DIV_FROM_REG(data->fan_status[attr->index]))); |
1125 | } |
1126 | |
1127 | static struct sensor_device_attribute fan_input[] = { |
1128 | SENSOR_ATTR_RO(fan1_input, fan_input, 0), |
1129 | SENSOR_ATTR_RO(fan2_input, fan_input, 1), |
1130 | SENSOR_ATTR_RO(fan3_input, fan_input, 2), |
1131 | }; |
1132 | |
1133 | static ssize_t fan_status_show(struct device *dev, |
1134 | struct device_attribute *devattr, char *buf) |
1135 | { |
1136 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1137 | struct pc87360_data *data = pc87360_update_device(dev); |
1138 | return sprintf(buf, fmt: "%u\n" , |
1139 | FAN_STATUS_FROM_REG(data->fan_status[attr->index])); |
1140 | } |
1141 | |
1142 | static struct sensor_device_attribute fan_status[] = { |
1143 | SENSOR_ATTR_RO(fan1_status, fan_status, 0), |
1144 | SENSOR_ATTR_RO(fan2_status, fan_status, 1), |
1145 | SENSOR_ATTR_RO(fan3_status, fan_status, 2), |
1146 | }; |
1147 | |
1148 | static ssize_t fan_div_show(struct device *dev, |
1149 | struct device_attribute *devattr, char *buf) |
1150 | { |
1151 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1152 | struct pc87360_data *data = pc87360_update_device(dev); |
1153 | return sprintf(buf, fmt: "%u\n" , |
1154 | FAN_DIV_FROM_REG(data->fan_status[attr->index])); |
1155 | } |
1156 | |
1157 | static struct sensor_device_attribute fan_div[] = { |
1158 | SENSOR_ATTR_RO(fan1_div, fan_div, 0), |
1159 | SENSOR_ATTR_RO(fan2_div, fan_div, 1), |
1160 | SENSOR_ATTR_RO(fan3_div, fan_div, 2), |
1161 | }; |
1162 | |
1163 | static ssize_t fan_min_show(struct device *dev, |
1164 | struct device_attribute *devattr, char *buf) |
1165 | { |
1166 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1167 | struct pc87360_data *data = pc87360_update_device(dev); |
1168 | return sprintf(buf, fmt: "%u\n" , FAN_FROM_REG(data->fan_min[attr->index], |
1169 | FAN_DIV_FROM_REG(data->fan_status[attr->index]))); |
1170 | } |
1171 | |
1172 | static ssize_t fan_min_store(struct device *dev, |
1173 | struct device_attribute *devattr, |
1174 | const char *buf, size_t count) |
1175 | { |
1176 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1177 | struct pc87360_data *data = dev_get_drvdata(dev); |
1178 | long fan_min; |
1179 | int err; |
1180 | |
1181 | err = kstrtol(s: buf, base: 10, res: &fan_min); |
1182 | if (err) |
1183 | return err; |
1184 | |
1185 | mutex_lock(&data->update_lock); |
1186 | fan_min = FAN_TO_REG(fan_min, |
1187 | FAN_DIV_FROM_REG(data->fan_status[attr->index])); |
1188 | |
1189 | /* If it wouldn't fit, change clock divisor */ |
1190 | while (fan_min > 255 |
1191 | && (data->fan_status[attr->index] & 0x60) != 0x60) { |
1192 | fan_min >>= 1; |
1193 | data->fan[attr->index] >>= 1; |
1194 | data->fan_status[attr->index] += 0x20; |
1195 | } |
1196 | data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; |
1197 | pc87360_write_value(data, LD_FAN, NO_BANK, |
1198 | PC87360_REG_FAN_MIN(attr->index), |
1199 | value: data->fan_min[attr->index]); |
1200 | |
1201 | /* Write new divider, preserve alarm bits */ |
1202 | pc87360_write_value(data, LD_FAN, NO_BANK, |
1203 | PC87360_REG_FAN_STATUS(attr->index), |
1204 | value: data->fan_status[attr->index] & 0xF9); |
1205 | mutex_unlock(lock: &data->update_lock); |
1206 | |
1207 | return count; |
1208 | } |
1209 | |
1210 | static struct sensor_device_attribute fan_min[] = { |
1211 | SENSOR_ATTR_RW(fan1_min, fan_min, 0), |
1212 | SENSOR_ATTR_RW(fan2_min, fan_min, 1), |
1213 | SENSOR_ATTR_RW(fan3_min, fan_min, 2), |
1214 | }; |
1215 | |
1216 | #define FAN_UNIT_ATTRS(X) \ |
1217 | { &fan_input[X].dev_attr.attr, \ |
1218 | &fan_status[X].dev_attr.attr, \ |
1219 | &fan_div[X].dev_attr.attr, \ |
1220 | &fan_min[X].dev_attr.attr, \ |
1221 | NULL \ |
1222 | } |
1223 | |
1224 | static struct attribute *pc8736x_fan_attr[][5] = { |
1225 | FAN_UNIT_ATTRS(0), |
1226 | FAN_UNIT_ATTRS(1), |
1227 | FAN_UNIT_ATTRS(2) |
1228 | }; |
1229 | |
1230 | static const struct attribute_group pc8736x_fan_attr_group[] = { |
1231 | { .attrs = pc8736x_fan_attr[0], }, |
1232 | { .attrs = pc8736x_fan_attr[1], }, |
1233 | { .attrs = pc8736x_fan_attr[2], }, |
1234 | }; |
1235 | |
1236 | static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr, |
1237 | char *buf) |
1238 | { |
1239 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1240 | struct pc87360_data *data = pc87360_update_device(dev); |
1241 | return sprintf(buf, fmt: "%u\n" , |
1242 | PWM_FROM_REG(data->pwm[attr->index], |
1243 | FAN_CONFIG_INVERT(data->fan_conf, |
1244 | attr->index))); |
1245 | } |
1246 | |
1247 | static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr, |
1248 | const char *buf, size_t count) |
1249 | { |
1250 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1251 | struct pc87360_data *data = dev_get_drvdata(dev); |
1252 | long val; |
1253 | int err; |
1254 | |
1255 | err = kstrtol(s: buf, base: 10, res: &val); |
1256 | if (err) |
1257 | return err; |
1258 | |
1259 | mutex_lock(&data->update_lock); |
1260 | data->pwm[attr->index] = PWM_TO_REG(val, |
1261 | FAN_CONFIG_INVERT(data->fan_conf, attr->index)); |
1262 | pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), |
1263 | value: data->pwm[attr->index]); |
1264 | mutex_unlock(lock: &data->update_lock); |
1265 | return count; |
1266 | } |
1267 | |
1268 | static struct sensor_device_attribute pwm[] = { |
1269 | SENSOR_ATTR_RW(pwm1, pwm, 0), |
1270 | SENSOR_ATTR_RW(pwm2, pwm, 1), |
1271 | SENSOR_ATTR_RW(pwm3, pwm, 2), |
1272 | }; |
1273 | |
1274 | static ssize_t name_show(struct device *dev, |
1275 | struct device_attribute *devattr, char *buf) |
1276 | { |
1277 | struct pc87360_data *data = dev_get_drvdata(dev); |
1278 | return sprintf(buf, fmt: "%s\n" , data->name); |
1279 | } |
1280 | |
1281 | static DEVICE_ATTR_RO(name); |
1282 | |
1283 | static void pc87360_remove_files(struct device *dev) |
1284 | { |
1285 | int i; |
1286 | |
1287 | device_remove_file(dev, attr: &dev_attr_name); |
1288 | device_remove_file(dev, attr: &dev_attr_alarms_temp); |
1289 | for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++) |
1290 | sysfs_remove_group(kobj: &dev->kobj, grp: &pc8736x_temp_attr_group[i]); |
1291 | for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) { |
1292 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &pc8736x_fan_attr_group[i]); |
1293 | device_remove_file(dev, attr: &pwm[i].dev_attr); |
1294 | } |
1295 | sysfs_remove_group(kobj: &dev->kobj, grp: &pc8736x_therm_group); |
1296 | sysfs_remove_group(kobj: &dev->kobj, grp: &pc8736x_vin_group); |
1297 | } |
1298 | |
1299 | static void pc87360_init_device(struct platform_device *pdev, |
1300 | int use_thermistors) |
1301 | { |
1302 | struct pc87360_data *data = platform_get_drvdata(pdev); |
1303 | int i, nr; |
1304 | const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; |
1305 | const u8 init_temp[3] = { 2, 2, 1 }; |
1306 | u8 reg; |
1307 | |
1308 | if (init >= 2 && data->innr) { |
1309 | reg = pc87360_read_value(data, LD_IN, NO_BANK, |
1310 | PC87365_REG_IN_CONVRATE); |
1311 | dev_info(&pdev->dev, |
1312 | "VLM conversion set to 1s period, 160us delay\n" ); |
1313 | pc87360_write_value(data, LD_IN, NO_BANK, |
1314 | PC87365_REG_IN_CONVRATE, |
1315 | value: (reg & 0xC0) | 0x11); |
1316 | } |
1317 | |
1318 | nr = data->innr < 11 ? data->innr : 11; |
1319 | for (i = 0; i < nr; i++) { |
1320 | reg = pc87360_read_value(data, LD_IN, bank: i, |
1321 | PC87365_REG_IN_STATUS); |
1322 | dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n" , i, reg); |
1323 | if (init >= init_in[i]) { |
1324 | /* Forcibly enable voltage channel */ |
1325 | if (!(reg & CHAN_ENA)) { |
1326 | dev_dbg(&pdev->dev, "Forcibly enabling in%d\n" , |
1327 | i); |
1328 | pc87360_write_value(data, LD_IN, bank: i, |
1329 | PC87365_REG_IN_STATUS, |
1330 | value: (reg & 0x68) | 0x87); |
1331 | } |
1332 | } |
1333 | } |
1334 | |
1335 | /* |
1336 | * We can't blindly trust the Super-I/O space configuration bit, |
1337 | * most BIOS won't set it properly |
1338 | */ |
1339 | dev_dbg(&pdev->dev, "bios thermistors:%d\n" , use_thermistors); |
1340 | for (i = 11; i < data->innr; i++) { |
1341 | reg = pc87360_read_value(data, LD_IN, bank: i, |
1342 | PC87365_REG_TEMP_STATUS); |
1343 | use_thermistors = use_thermistors || (reg & CHAN_ENA); |
1344 | /* thermistors are temp[4-6], measured on vin[11-14] */ |
1345 | dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n" , i-7, reg); |
1346 | } |
1347 | dev_dbg(&pdev->dev, "using thermistors:%d\n" , use_thermistors); |
1348 | |
1349 | i = use_thermistors ? 2 : 0; |
1350 | for (; i < data->tempnr; i++) { |
1351 | reg = pc87360_read_value(data, LD_TEMP, bank: i, |
1352 | PC87365_REG_TEMP_STATUS); |
1353 | dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n" , i + 1, reg); |
1354 | if (init >= init_temp[i]) { |
1355 | /* Forcibly enable temperature channel */ |
1356 | if (!(reg & CHAN_ENA)) { |
1357 | dev_dbg(&pdev->dev, |
1358 | "Forcibly enabling temp%d\n" , i + 1); |
1359 | pc87360_write_value(data, LD_TEMP, bank: i, |
1360 | PC87365_REG_TEMP_STATUS, |
1361 | value: 0xCF); |
1362 | } |
1363 | } |
1364 | } |
1365 | |
1366 | if (use_thermistors) { |
1367 | for (i = 11; i < data->innr; i++) { |
1368 | if (init >= init_in[i]) { |
1369 | /* |
1370 | * The pin may already be used by thermal |
1371 | * diodes |
1372 | */ |
1373 | reg = pc87360_read_value(data, LD_TEMP, |
1374 | bank: (i - 11) / 2, PC87365_REG_TEMP_STATUS); |
1375 | if (reg & CHAN_ENA) { |
1376 | dev_dbg(&pdev->dev, |
1377 | "Skipping temp%d, pin already in use by temp%d\n" , |
1378 | i - 7, (i - 11) / 2); |
1379 | continue; |
1380 | } |
1381 | |
1382 | /* Forcibly enable thermistor channel */ |
1383 | reg = pc87360_read_value(data, LD_IN, bank: i, |
1384 | PC87365_REG_IN_STATUS); |
1385 | if (!(reg & CHAN_ENA)) { |
1386 | dev_dbg(&pdev->dev, |
1387 | "Forcibly enabling temp%d\n" , |
1388 | i - 7); |
1389 | pc87360_write_value(data, LD_IN, bank: i, |
1390 | PC87365_REG_TEMP_STATUS, |
1391 | value: (reg & 0x60) | 0x8F); |
1392 | } |
1393 | } |
1394 | } |
1395 | } |
1396 | |
1397 | if (data->innr) { |
1398 | reg = pc87360_read_value(data, LD_IN, NO_BANK, |
1399 | PC87365_REG_IN_CONFIG); |
1400 | dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n" , reg); |
1401 | if (reg & CHAN_ENA) { |
1402 | dev_dbg(&pdev->dev, |
1403 | "Forcibly enabling monitoring (VLM)\n" ); |
1404 | pc87360_write_value(data, LD_IN, NO_BANK, |
1405 | PC87365_REG_IN_CONFIG, |
1406 | value: reg & 0xFE); |
1407 | } |
1408 | } |
1409 | |
1410 | if (data->tempnr) { |
1411 | reg = pc87360_read_value(data, LD_TEMP, NO_BANK, |
1412 | PC87365_REG_TEMP_CONFIG); |
1413 | dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n" , reg); |
1414 | if (reg & CHAN_ENA) { |
1415 | dev_dbg(&pdev->dev, |
1416 | "Forcibly enabling monitoring (TMS)\n" ); |
1417 | pc87360_write_value(data, LD_TEMP, NO_BANK, |
1418 | PC87365_REG_TEMP_CONFIG, |
1419 | value: reg & 0xFE); |
1420 | } |
1421 | |
1422 | if (init >= 2) { |
1423 | /* Chip config as documented by National Semi. */ |
1424 | pc87360_write_value(data, LD_TEMP, bank: 0xF, reg: 0xA, value: 0x08); |
1425 | /* |
1426 | * We voluntarily omit the bank here, in case the |
1427 | * sequence itself matters. It shouldn't be a problem, |
1428 | * since nobody else is supposed to access the |
1429 | * device at that point. |
1430 | */ |
1431 | pc87360_write_value(data, LD_TEMP, NO_BANK, reg: 0xB, value: 0x04); |
1432 | pc87360_write_value(data, LD_TEMP, NO_BANK, reg: 0xC, value: 0x35); |
1433 | pc87360_write_value(data, LD_TEMP, NO_BANK, reg: 0xD, value: 0x05); |
1434 | pc87360_write_value(data, LD_TEMP, NO_BANK, reg: 0xE, value: 0x05); |
1435 | } |
1436 | } |
1437 | } |
1438 | |
1439 | static int pc87360_probe(struct platform_device *pdev) |
1440 | { |
1441 | int i; |
1442 | struct pc87360_data *data; |
1443 | int err = 0; |
1444 | const char *name; |
1445 | int use_thermistors = 0; |
1446 | struct device *dev = &pdev->dev; |
1447 | |
1448 | data = devm_kzalloc(dev, size: sizeof(struct pc87360_data), GFP_KERNEL); |
1449 | if (!data) |
1450 | return -ENOMEM; |
1451 | |
1452 | switch (devid) { |
1453 | default: |
1454 | name = "pc87360" ; |
1455 | data->fannr = 2; |
1456 | break; |
1457 | case 0xe8: |
1458 | name = "pc87363" ; |
1459 | data->fannr = 2; |
1460 | break; |
1461 | case 0xe4: |
1462 | name = "pc87364" ; |
1463 | data->fannr = 3; |
1464 | break; |
1465 | case 0xe5: |
1466 | name = "pc87365" ; |
1467 | data->fannr = extra_isa[0] ? 3 : 0; |
1468 | data->innr = extra_isa[1] ? 11 : 0; |
1469 | data->tempnr = extra_isa[2] ? 2 : 0; |
1470 | break; |
1471 | case 0xe9: |
1472 | name = "pc87366" ; |
1473 | data->fannr = extra_isa[0] ? 3 : 0; |
1474 | data->innr = extra_isa[1] ? 14 : 0; |
1475 | data->tempnr = extra_isa[2] ? 3 : 0; |
1476 | break; |
1477 | } |
1478 | |
1479 | data->name = name; |
1480 | mutex_init(&data->lock); |
1481 | mutex_init(&data->update_lock); |
1482 | platform_set_drvdata(pdev, data); |
1483 | |
1484 | for (i = 0; i < LDNI_MAX; i++) { |
1485 | data->address[i] = extra_isa[i]; |
1486 | if (data->address[i] |
1487 | && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, |
1488 | DRIVER_NAME)) { |
1489 | dev_err(dev, |
1490 | "Region 0x%x-0x%x already in use!\n" , |
1491 | extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); |
1492 | return -EBUSY; |
1493 | } |
1494 | } |
1495 | |
1496 | /* Retrieve the fans configuration from Super-I/O space */ |
1497 | if (data->fannr) |
1498 | data->fan_conf = confreg[0] | (confreg[1] << 8); |
1499 | |
1500 | /* |
1501 | * Use the correct reference voltage |
1502 | * Unless both the VLM and the TMS logical devices agree to |
1503 | * use an external Vref, the internal one is used. |
1504 | */ |
1505 | if (data->innr) { |
1506 | i = pc87360_read_value(data, LD_IN, NO_BANK, |
1507 | PC87365_REG_IN_CONFIG); |
1508 | if (data->tempnr) { |
1509 | i &= pc87360_read_value(data, LD_TEMP, NO_BANK, |
1510 | PC87365_REG_TEMP_CONFIG); |
1511 | } |
1512 | data->in_vref = (i&0x02) ? 3025 : 2966; |
1513 | dev_dbg(dev, "Using %s reference voltage\n" , |
1514 | (i&0x02) ? "external" : "internal" ); |
1515 | |
1516 | data->vid_conf = confreg[3]; |
1517 | data->vrm = vid_which_vrm(); |
1518 | } |
1519 | |
1520 | /* Fan clock dividers may be needed before any data is read */ |
1521 | for (i = 0; i < data->fannr; i++) { |
1522 | if (FAN_CONFIG_MONITOR(data->fan_conf, i)) |
1523 | data->fan_status[i] = pc87360_read_value(data, |
1524 | LD_FAN, NO_BANK, |
1525 | PC87360_REG_FAN_STATUS(i)); |
1526 | } |
1527 | |
1528 | if (init > 0) { |
1529 | if (devid == 0xe9 && data->address[1]) /* PC87366 */ |
1530 | use_thermistors = confreg[2] & 0x40; |
1531 | |
1532 | pc87360_init_device(pdev, use_thermistors); |
1533 | } |
1534 | |
1535 | /* Register all-or-nothing sysfs groups */ |
1536 | |
1537 | if (data->innr) { |
1538 | err = sysfs_create_group(kobj: &dev->kobj, grp: &pc8736x_vin_group); |
1539 | if (err) |
1540 | goto error; |
1541 | } |
1542 | |
1543 | if (data->innr == 14) { |
1544 | err = sysfs_create_group(kobj: &dev->kobj, grp: &pc8736x_therm_group); |
1545 | if (err) |
1546 | goto error; |
1547 | } |
1548 | |
1549 | /* create device attr-files for varying sysfs groups */ |
1550 | |
1551 | if (data->tempnr) { |
1552 | for (i = 0; i < data->tempnr; i++) { |
1553 | err = sysfs_create_group(kobj: &dev->kobj, |
1554 | grp: &pc8736x_temp_attr_group[i]); |
1555 | if (err) |
1556 | goto error; |
1557 | } |
1558 | err = device_create_file(device: dev, entry: &dev_attr_alarms_temp); |
1559 | if (err) |
1560 | goto error; |
1561 | } |
1562 | |
1563 | for (i = 0; i < data->fannr; i++) { |
1564 | if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { |
1565 | err = sysfs_create_group(kobj: &dev->kobj, |
1566 | grp: &pc8736x_fan_attr_group[i]); |
1567 | if (err) |
1568 | goto error; |
1569 | } |
1570 | if (FAN_CONFIG_CONTROL(data->fan_conf, i)) { |
1571 | err = device_create_file(device: dev, entry: &pwm[i].dev_attr); |
1572 | if (err) |
1573 | goto error; |
1574 | } |
1575 | } |
1576 | |
1577 | err = device_create_file(device: dev, entry: &dev_attr_name); |
1578 | if (err) |
1579 | goto error; |
1580 | |
1581 | data->hwmon_dev = hwmon_device_register(dev); |
1582 | if (IS_ERR(ptr: data->hwmon_dev)) { |
1583 | err = PTR_ERR(ptr: data->hwmon_dev); |
1584 | goto error; |
1585 | } |
1586 | return 0; |
1587 | |
1588 | error: |
1589 | pc87360_remove_files(dev); |
1590 | return err; |
1591 | } |
1592 | |
1593 | static void pc87360_remove(struct platform_device *pdev) |
1594 | { |
1595 | struct pc87360_data *data = platform_get_drvdata(pdev); |
1596 | |
1597 | hwmon_device_unregister(dev: data->hwmon_dev); |
1598 | pc87360_remove_files(dev: &pdev->dev); |
1599 | } |
1600 | |
1601 | /* |
1602 | * Driver data |
1603 | */ |
1604 | static struct platform_driver pc87360_driver = { |
1605 | .driver = { |
1606 | .name = DRIVER_NAME, |
1607 | }, |
1608 | .probe = pc87360_probe, |
1609 | .remove_new = pc87360_remove, |
1610 | }; |
1611 | |
1612 | /* |
1613 | * Device detection, registration and update |
1614 | */ |
1615 | |
1616 | static int __init pc87360_find(int sioaddr, u8 *devid, |
1617 | unsigned short *addresses) |
1618 | { |
1619 | u16 val; |
1620 | int i; |
1621 | int nrdev; /* logical device count */ |
1622 | |
1623 | /* No superio_enter */ |
1624 | |
1625 | /* Identify device */ |
1626 | val = force_id ? force_id : superio_inb(sioaddr, DEVID); |
1627 | switch (val) { |
1628 | case 0xE1: /* PC87360 */ |
1629 | case 0xE8: /* PC87363 */ |
1630 | case 0xE4: /* PC87364 */ |
1631 | nrdev = 1; |
1632 | break; |
1633 | case 0xE5: /* PC87365 */ |
1634 | case 0xE9: /* PC87366 */ |
1635 | nrdev = 3; |
1636 | break; |
1637 | default: |
1638 | superio_exit(sioaddr); |
1639 | return -ENODEV; |
1640 | } |
1641 | /* Remember the device id */ |
1642 | *devid = val; |
1643 | |
1644 | for (i = 0; i < nrdev; i++) { |
1645 | /* select logical device */ |
1646 | superio_outb(sioaddr, DEV, val: logdev[i]); |
1647 | |
1648 | val = superio_inb(sioaddr, ACT); |
1649 | if (!(val & 0x01)) { |
1650 | pr_info("Device 0x%02x not activated\n" , logdev[i]); |
1651 | continue; |
1652 | } |
1653 | |
1654 | val = (superio_inb(sioaddr, BASE) << 8) |
1655 | | superio_inb(sioaddr, BASE + 1); |
1656 | if (!val) { |
1657 | pr_info("Base address not set for device 0x%02x\n" , |
1658 | logdev[i]); |
1659 | continue; |
1660 | } |
1661 | |
1662 | addresses[i] = val; |
1663 | |
1664 | if (i == 0) { /* Fans */ |
1665 | confreg[0] = superio_inb(sioaddr, reg: 0xF0); |
1666 | confreg[1] = superio_inb(sioaddr, reg: 0xF1); |
1667 | |
1668 | pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n" , 1, |
1669 | (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1, |
1670 | (confreg[0] >> 4) & 1); |
1671 | pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n" , 2, |
1672 | (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1, |
1673 | (confreg[0] >> 7) & 1); |
1674 | pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n" , 3, |
1675 | confreg[1] & 1, (confreg[1] >> 1) & 1, |
1676 | (confreg[1] >> 2) & 1); |
1677 | } else if (i == 1) { /* Voltages */ |
1678 | /* Are we using thermistors? */ |
1679 | if (*devid == 0xE9) { /* PC87366 */ |
1680 | /* |
1681 | * These registers are not logical-device |
1682 | * specific, just that we won't need them if |
1683 | * we don't use the VLM device |
1684 | */ |
1685 | confreg[2] = superio_inb(sioaddr, reg: 0x2B); |
1686 | confreg[3] = superio_inb(sioaddr, reg: 0x25); |
1687 | |
1688 | if (confreg[2] & 0x40) { |
1689 | pr_info("Using thermistors for temperature monitoring\n" ); |
1690 | } |
1691 | if (confreg[3] & 0xE0) { |
1692 | pr_info("VID inputs routed (mode %u)\n" , |
1693 | confreg[3] >> 5); |
1694 | } |
1695 | } |
1696 | } |
1697 | } |
1698 | |
1699 | superio_exit(sioaddr); |
1700 | return 0; |
1701 | } |
1702 | |
1703 | static int __init pc87360_device_add(unsigned short address) |
1704 | { |
1705 | struct resource res[3]; |
1706 | int err, i, res_count; |
1707 | |
1708 | pdev = platform_device_alloc(name: "pc87360" , id: address); |
1709 | if (!pdev) { |
1710 | err = -ENOMEM; |
1711 | pr_err("Device allocation failed\n" ); |
1712 | goto exit; |
1713 | } |
1714 | |
1715 | memset(res, 0, 3 * sizeof(struct resource)); |
1716 | res_count = 0; |
1717 | for (i = 0; i < 3; i++) { |
1718 | if (!extra_isa[i]) |
1719 | continue; |
1720 | res[res_count].start = extra_isa[i]; |
1721 | res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; |
1722 | res[res_count].name = "pc87360" ; |
1723 | res[res_count].flags = IORESOURCE_IO; |
1724 | |
1725 | err = acpi_check_resource_conflict(res: &res[res_count]); |
1726 | if (err) |
1727 | goto exit_device_put; |
1728 | |
1729 | res_count++; |
1730 | } |
1731 | |
1732 | err = platform_device_add_resources(pdev, res, num: res_count); |
1733 | if (err) { |
1734 | pr_err("Device resources addition failed (%d)\n" , err); |
1735 | goto exit_device_put; |
1736 | } |
1737 | |
1738 | err = platform_device_add(pdev); |
1739 | if (err) { |
1740 | pr_err("Device addition failed (%d)\n" , err); |
1741 | goto exit_device_put; |
1742 | } |
1743 | |
1744 | return 0; |
1745 | |
1746 | exit_device_put: |
1747 | platform_device_put(pdev); |
1748 | exit: |
1749 | return err; |
1750 | } |
1751 | |
1752 | static int __init pc87360_init(void) |
1753 | { |
1754 | int err, i; |
1755 | unsigned short address = 0; |
1756 | |
1757 | if (pc87360_find(sioaddr: 0x2e, devid: &devid, addresses: extra_isa) |
1758 | && pc87360_find(sioaddr: 0x4e, devid: &devid, addresses: extra_isa)) { |
1759 | pr_warn("PC8736x not detected, module not inserted\n" ); |
1760 | return -ENODEV; |
1761 | } |
1762 | |
1763 | /* Arbitrarily pick one of the addresses */ |
1764 | for (i = 0; i < 3; i++) { |
1765 | if (extra_isa[i] != 0x0000) { |
1766 | address = extra_isa[i]; |
1767 | break; |
1768 | } |
1769 | } |
1770 | |
1771 | if (address == 0x0000) { |
1772 | pr_warn("No active logical device, module not inserted\n" ); |
1773 | return -ENODEV; |
1774 | } |
1775 | |
1776 | err = platform_driver_register(&pc87360_driver); |
1777 | if (err) |
1778 | goto exit; |
1779 | |
1780 | /* Sets global pdev as a side effect */ |
1781 | err = pc87360_device_add(address); |
1782 | if (err) |
1783 | goto exit_driver; |
1784 | |
1785 | return 0; |
1786 | |
1787 | exit_driver: |
1788 | platform_driver_unregister(&pc87360_driver); |
1789 | exit: |
1790 | return err; |
1791 | } |
1792 | |
1793 | static void __exit pc87360_exit(void) |
1794 | { |
1795 | platform_device_unregister(pdev); |
1796 | platform_driver_unregister(&pc87360_driver); |
1797 | } |
1798 | |
1799 | MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>" ); |
1800 | MODULE_DESCRIPTION("PC8736x hardware monitor" ); |
1801 | MODULE_LICENSE("GPL" ); |
1802 | MODULE_ALIAS("platform:" DRIVER_NAME); |
1803 | |
1804 | module_init(pc87360_init); |
1805 | module_exit(pc87360_exit); |
1806 | |