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