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1 | /* |
2 | * it87.c - Part of lm_sensors, Linux kernel modules for hardware |
3 | * monitoring. |
4 | * |
5 | * The IT8705F is an LPC-based Super I/O part that contains UARTs, a |
6 | * parallel port, an IR port, a MIDI port, a floppy controller, etc., in |
7 | * addition to an Environment Controller (Enhanced Hardware Monitor and |
8 | * Fan Controller) |
9 | * |
10 | * This driver supports only the Environment Controller in the IT8705F and |
11 | * similar parts. The other devices are supported by different drivers. |
12 | * |
13 | * Supports: IT8705F Super I/O chip w/LPC interface |
14 | * IT8712F Super I/O chip w/LPC interface |
15 | * IT8716F Super I/O chip w/LPC interface |
16 | * IT8718F Super I/O chip w/LPC interface |
17 | * IT8720F Super I/O chip w/LPC interface |
18 | * IT8721F Super I/O chip w/LPC interface |
19 | * IT8726F Super I/O chip w/LPC interface |
20 | * IT8728F Super I/O chip w/LPC interface |
21 | * IT8758E Super I/O chip w/LPC interface |
22 | * IT8771E Super I/O chip w/LPC interface |
23 | * IT8772E Super I/O chip w/LPC interface |
24 | * IT8782F Super I/O chip w/LPC interface |
25 | * IT8783E/F Super I/O chip w/LPC interface |
26 | * Sis950 A clone of the IT8705F |
27 | * |
28 | * Copyright (C) 2001 Chris Gauthron |
29 | * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> |
30 | * |
31 | * This program is free software; you can redistribute it and/or modify |
32 | * it under the terms of the GNU General Public License as published by |
33 | * the Free Software Foundation; either version 2 of the License, or |
34 | * (at your option) any later version. |
35 | * |
36 | * This program is distributed in the hope that it will be useful, |
37 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
38 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
39 | * GNU General Public License for more details. |
40 | * |
41 | * You should have received a copy of the GNU General Public License |
42 | * along with this program; if not, write to the Free Software |
43 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
44 | */ |
45 | |
46 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
47 | |
48 | #include <linux/module.h> |
49 | #include <linux/init.h> |
50 | #include <linux/slab.h> |
51 | #include <linux/jiffies.h> |
52 | #include <linux/platform_device.h> |
53 | #include <linux/hwmon.h> |
54 | #include <linux/hwmon-sysfs.h> |
55 | #include <linux/hwmon-vid.h> |
56 | #include <linux/err.h> |
57 | #include <linux/mutex.h> |
58 | #include <linux/sysfs.h> |
59 | #include <linux/string.h> |
60 | #include <linux/dmi.h> |
61 | #include <linux/acpi.h> |
62 | #include <linux/io.h> |
63 | |
64 | #define DRVNAME "it87" |
65 | |
66 | enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771, |
67 | it8772, it8782, it8783 }; |
68 | |
69 | static unsigned short force_id; |
70 | module_param(force_id, ushort, 0); |
71 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); |
72 | |
73 | static struct platform_device *pdev; |
74 | |
75 | #define REG 0x2e /* The register to read/write */ |
76 | #define DEV 0x07 /* Register: Logical device select */ |
77 | #define VAL 0x2f /* The value to read/write */ |
78 | #define PME 0x04 /* The device with the fan registers in it */ |
79 | |
80 | /* The device with the IT8718F/IT8720F VID value in it */ |
81 | #define GPIO 0x07 |
82 | |
83 | #define DEVID 0x20 /* Register: Device ID */ |
84 | #define DEVREV 0x22 /* Register: Device Revision */ |
85 | |
86 | static inline int superio_inb(int reg) |
87 | { |
88 | outb(reg, REG); |
89 | return inb(VAL); |
90 | } |
91 | |
92 | static inline void superio_outb(int reg, int val) |
93 | { |
94 | outb(reg, REG); |
95 | outb(val, VAL); |
96 | } |
97 | |
98 | static int superio_inw(int reg) |
99 | { |
100 | int val; |
101 | outb(reg++, REG); |
102 | val = inb(VAL) << 8; |
103 | outb(reg, REG); |
104 | val |= inb(VAL); |
105 | return val; |
106 | } |
107 | |
108 | static inline void superio_select(int ldn) |
109 | { |
110 | outb(DEV, REG); |
111 | outb(ldn, VAL); |
112 | } |
113 | |
114 | static inline int superio_enter(void) |
115 | { |
116 | /* |
117 | * Try to reserve REG and REG + 1 for exclusive access. |
118 | */ |
119 | if (!request_muxed_region(REG, 2, DRVNAME)) |
120 | return -EBUSY; |
121 | |
122 | outb(0x87, REG); |
123 | outb(0x01, REG); |
124 | outb(0x55, REG); |
125 | outb(0x55, REG); |
126 | return 0; |
127 | } |
128 | |
129 | static inline void superio_exit(void) |
130 | { |
131 | outb(0x02, REG); |
132 | outb(0x02, VAL); |
133 | release_region(REG, 2); |
134 | } |
135 | |
136 | /* Logical device 4 registers */ |
137 | #define IT8712F_DEVID 0x8712 |
138 | #define IT8705F_DEVID 0x8705 |
139 | #define IT8716F_DEVID 0x8716 |
140 | #define IT8718F_DEVID 0x8718 |
141 | #define IT8720F_DEVID 0x8720 |
142 | #define IT8721F_DEVID 0x8721 |
143 | #define IT8726F_DEVID 0x8726 |
144 | #define IT8728F_DEVID 0x8728 |
145 | #define IT8771E_DEVID 0x8771 |
146 | #define IT8772E_DEVID 0x8772 |
147 | #define IT8782F_DEVID 0x8782 |
148 | #define IT8783E_DEVID 0x8783 |
149 | #define IT87_ACT_REG 0x30 |
150 | #define IT87_BASE_REG 0x60 |
151 | |
152 | /* Logical device 7 registers (IT8712F and later) */ |
153 | #define IT87_SIO_GPIO1_REG 0x25 |
154 | #define IT87_SIO_GPIO3_REG 0x27 |
155 | #define IT87_SIO_GPIO5_REG 0x29 |
156 | #define IT87_SIO_PINX1_REG 0x2a /* Pin selection */ |
157 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
158 | #define IT87_SIO_SPI_REG 0xef /* SPI function pin select */ |
159 | #define IT87_SIO_VID_REG 0xfc /* VID value */ |
160 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
161 | |
162 | /* Update battery voltage after every reading if true */ |
163 | static bool update_vbat; |
164 | |
165 | /* Not all BIOSes properly configure the PWM registers */ |
166 | static bool fix_pwm_polarity; |
167 | |
168 | /* Many IT87 constants specified below */ |
169 | |
170 | /* Length of ISA address segment */ |
171 | #define IT87_EXTENT 8 |
172 | |
173 | /* Length of ISA address segment for Environmental Controller */ |
174 | #define IT87_EC_EXTENT 2 |
175 | |
176 | /* Offset of EC registers from ISA base address */ |
177 | #define IT87_EC_OFFSET 5 |
178 | |
179 | /* Where are the ISA address/data registers relative to the EC base address */ |
180 | #define IT87_ADDR_REG_OFFSET 0 |
181 | #define IT87_DATA_REG_OFFSET 1 |
182 | |
183 | /*----- The IT87 registers -----*/ |
184 | |
185 | #define IT87_REG_CONFIG 0x00 |
186 | |
187 | #define IT87_REG_ALARM1 0x01 |
188 | #define IT87_REG_ALARM2 0x02 |
189 | #define IT87_REG_ALARM3 0x03 |
190 | |
191 | /* |
192 | * The IT8718F and IT8720F have the VID value in a different register, in |
193 | * Super-I/O configuration space. |
194 | */ |
195 | #define IT87_REG_VID 0x0a |
196 | /* |
197 | * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
198 | * for fan divisors. Later IT8712F revisions must use 16-bit tachometer |
199 | * mode. |
200 | */ |
201 | #define IT87_REG_FAN_DIV 0x0b |
202 | #define IT87_REG_FAN_16BIT 0x0c |
203 | |
204 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ |
205 | |
206 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
207 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; |
208 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; |
209 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; |
210 | static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 }; |
211 | |
212 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
213 | #define IT87_REG_FAN_CTL 0x14 |
214 | #define IT87_REG_PWM(nr) (0x15 + (nr)) |
215 | #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
216 | |
217 | #define IT87_REG_VIN(nr) (0x20 + (nr)) |
218 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) |
219 | |
220 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) |
221 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) |
222 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) |
223 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) |
224 | |
225 | #define IT87_REG_VIN_ENABLE 0x50 |
226 | #define IT87_REG_TEMP_ENABLE 0x51 |
227 | #define IT87_REG_TEMP_EXTRA 0x55 |
228 | #define IT87_REG_BEEP_ENABLE 0x5c |
229 | |
230 | #define IT87_REG_CHIPID 0x58 |
231 | |
232 | #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
233 | #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) |
234 | |
235 | struct it87_devices { |
236 | const char *name; |
237 | u16 features; |
238 | u8 peci_mask; |
239 | u8 old_peci_mask; |
240 | }; |
241 | |
242 | #define FEAT_12MV_ADC (1 << 0) |
243 | #define FEAT_NEWER_AUTOPWM (1 << 1) |
244 | #define FEAT_OLD_AUTOPWM (1 << 2) |
245 | #define FEAT_16BIT_FANS (1 << 3) |
246 | #define FEAT_TEMP_OFFSET (1 << 4) |
247 | #define FEAT_TEMP_PECI (1 << 5) |
248 | #define FEAT_TEMP_OLD_PECI (1 << 6) |
249 | |
250 | static const struct it87_devices it87_devices[] = { |
251 | [it87] = { |
252 | .name = "it87", |
253 | .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */ |
254 | }, |
255 | [it8712] = { |
256 | .name = "it8712", |
257 | .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */ |
258 | }, |
259 | [it8716] = { |
260 | .name = "it8716", |
261 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET, |
262 | }, |
263 | [it8718] = { |
264 | .name = "it8718", |
265 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
266 | | FEAT_TEMP_OLD_PECI, |
267 | .old_peci_mask = 0x4, |
268 | }, |
269 | [it8720] = { |
270 | .name = "it8720", |
271 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
272 | | FEAT_TEMP_OLD_PECI, |
273 | .old_peci_mask = 0x4, |
274 | }, |
275 | [it8721] = { |
276 | .name = "it8721", |
277 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
278 | | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI, |
279 | .peci_mask = 0x05, |
280 | .old_peci_mask = 0x02, /* Actually reports PCH */ |
281 | }, |
282 | [it8728] = { |
283 | .name = "it8728", |
284 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
285 | | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, |
286 | .peci_mask = 0x07, |
287 | }, |
288 | [it8771] = { |
289 | .name = "it8771", |
290 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
291 | | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, |
292 | /* PECI: guesswork */ |
293 | /* 12mV ADC (OHM) */ |
294 | /* 16 bit fans (OHM) */ |
295 | .peci_mask = 0x07, |
296 | }, |
297 | [it8772] = { |
298 | .name = "it8772", |
299 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
300 | | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, |
301 | /* PECI (coreboot) */ |
302 | /* 12mV ADC (HWSensors4, OHM) */ |
303 | /* 16 bit fans (HWSensors4, OHM) */ |
304 | .peci_mask = 0x07, |
305 | }, |
306 | [it8782] = { |
307 | .name = "it8782", |
308 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
309 | | FEAT_TEMP_OLD_PECI, |
310 | .old_peci_mask = 0x4, |
311 | }, |
312 | [it8783] = { |
313 | .name = "it8783", |
314 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
315 | | FEAT_TEMP_OLD_PECI, |
316 | .old_peci_mask = 0x4, |
317 | }, |
318 | }; |
319 | |
320 | #define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS) |
321 | #define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC) |
322 | #define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM) |
323 | #define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM) |
324 | #define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET) |
325 | #define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \ |
326 | ((data)->peci_mask & (1 << nr))) |
327 | #define has_temp_old_peci(data, nr) \ |
328 | (((data)->features & FEAT_TEMP_OLD_PECI) && \ |
329 | ((data)->old_peci_mask & (1 << nr))) |
330 | |
331 | struct it87_sio_data { |
332 | enum chips type; |
333 | /* Values read from Super-I/O config space */ |
334 | u8 revision; |
335 | u8 vid_value; |
336 | u8 beep_pin; |
337 | u8 internal; /* Internal sensors can be labeled */ |
338 | /* Features skipped based on config or DMI */ |
339 | u16 skip_in; |
340 | u8 skip_vid; |
341 | u8 skip_fan; |
342 | u8 skip_pwm; |
343 | u8 skip_temp; |
344 | }; |
345 | |
346 | /* |
347 | * For each registered chip, we need to keep some data in memory. |
348 | * The structure is dynamically allocated. |
349 | */ |
350 | struct it87_data { |
351 | struct device *hwmon_dev; |
352 | enum chips type; |
353 | u16 features; |
354 | u8 peci_mask; |
355 | u8 old_peci_mask; |
356 | |
357 | unsigned short addr; |
358 | const char *name; |
359 | struct mutex update_lock; |
360 | char valid; /* !=0 if following fields are valid */ |
361 | unsigned long last_updated; /* In jiffies */ |
362 | |
363 | u16 in_scaled; /* Internal voltage sensors are scaled */ |
364 | u8 in[9][3]; /* [nr][0]=in, [1]=min, [2]=max */ |
365 | u8 has_fan; /* Bitfield, fans enabled */ |
366 | u16 fan[5][2]; /* Register values, [nr][0]=fan, [1]=min */ |
367 | u8 has_temp; /* Bitfield, temp sensors enabled */ |
368 | s8 temp[3][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */ |
369 | u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */ |
370 | u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */ |
371 | u8 fan_div[3]; /* Register encoding, shifted right */ |
372 | u8 vid; /* Register encoding, combined */ |
373 | u8 vrm; |
374 | u32 alarms; /* Register encoding, combined */ |
375 | u8 beeps; /* Register encoding */ |
376 | u8 fan_main_ctrl; /* Register value */ |
377 | u8 fan_ctl; /* Register value */ |
378 | |
379 | /* |
380 | * The following 3 arrays correspond to the same registers up to |
381 | * the IT8720F. The meaning of bits 6-0 depends on the value of bit |
382 | * 7, and we want to preserve settings on mode changes, so we have |
383 | * to track all values separately. |
384 | * Starting with the IT8721F, the manual PWM duty cycles are stored |
385 | * in separate registers (8-bit values), so the separate tracking |
386 | * is no longer needed, but it is still done to keep the driver |
387 | * simple. |
388 | */ |
389 | u8 pwm_ctrl[3]; /* Register value */ |
390 | u8 pwm_duty[3]; /* Manual PWM value set by user */ |
391 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
392 | |
393 | /* Automatic fan speed control registers */ |
394 | u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ |
395 | s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ |
396 | }; |
397 | |
398 | static int adc_lsb(const struct it87_data *data, int nr) |
399 | { |
400 | int lsb = has_12mv_adc(data) ? 12 : 16; |
401 | if (data->in_scaled & (1 << nr)) |
402 | lsb <<= 1; |
403 | return lsb; |
404 | } |
405 | |
406 | static u8 in_to_reg(const struct it87_data *data, int nr, long val) |
407 | { |
408 | val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr)); |
409 | return clamp_val(val, 0, 255); |
410 | } |
411 | |
412 | static int in_from_reg(const struct it87_data *data, int nr, int val) |
413 | { |
414 | return val * adc_lsb(data, nr); |
415 | } |
416 | |
417 | static inline u8 FAN_TO_REG(long rpm, int div) |
418 | { |
419 | if (rpm == 0) |
420 | return 255; |
421 | rpm = clamp_val(rpm, 1, 1000000); |
422 | return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); |
423 | } |
424 | |
425 | static inline u16 FAN16_TO_REG(long rpm) |
426 | { |
427 | if (rpm == 0) |
428 | return 0xffff; |
429 | return clamp_val((1350000 + rpm) / (rpm * 2), 1, 0xfffe); |
430 | } |
431 | |
432 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ |
433 | 1350000 / ((val) * (div))) |
434 | /* The divider is fixed to 2 in 16-bit mode */ |
435 | #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
436 | 1350000 / ((val) * 2)) |
437 | |
438 | #define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (((val) - 500) / 1000) : \ |
439 | ((val) + 500) / 1000), -128, 127)) |
440 | #define TEMP_FROM_REG(val) ((val) * 1000) |
441 | |
442 | static u8 pwm_to_reg(const struct it87_data *data, long val) |
443 | { |
444 | if (has_newer_autopwm(data)) |
445 | return val; |
446 | else |
447 | return val >> 1; |
448 | } |
449 | |
450 | static int pwm_from_reg(const struct it87_data *data, u8 reg) |
451 | { |
452 | if (has_newer_autopwm(data)) |
453 | return reg; |
454 | else |
455 | return (reg & 0x7f) << 1; |
456 | } |
457 | |
458 | |
459 | static int DIV_TO_REG(int val) |
460 | { |
461 | int answer = 0; |
462 | while (answer < 7 && (val >>= 1)) |
463 | answer++; |
464 | return answer; |
465 | } |
466 | #define DIV_FROM_REG(val) (1 << (val)) |
467 | |
468 | static const unsigned int pwm_freq[8] = { |
469 | 48000000 / 128, |
470 | 24000000 / 128, |
471 | 12000000 / 128, |
472 | 8000000 / 128, |
473 | 6000000 / 128, |
474 | 3000000 / 128, |
475 | 1500000 / 128, |
476 | 750000 / 128, |
477 | }; |
478 | |
479 | static int it87_probe(struct platform_device *pdev); |
480 | static int it87_remove(struct platform_device *pdev); |
481 | |
482 | static int it87_read_value(struct it87_data *data, u8 reg); |
483 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); |
484 | static struct it87_data *it87_update_device(struct device *dev); |
485 | static int it87_check_pwm(struct device *dev); |
486 | static void it87_init_device(struct platform_device *pdev); |
487 | |
488 | |
489 | static struct platform_driver it87_driver = { |
490 | .driver = { |
491 | .owner = THIS_MODULE, |
492 | .name = DRVNAME, |
493 | }, |
494 | .probe = it87_probe, |
495 | .remove = it87_remove, |
496 | }; |
497 | |
498 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
499 | char *buf) |
500 | { |
501 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
502 | int nr = sattr->nr; |
503 | int index = sattr->index; |
504 | |
505 | struct it87_data *data = it87_update_device(dev); |
506 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index])); |
507 | } |
508 | |
509 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, |
510 | const char *buf, size_t count) |
511 | { |
512 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
513 | int nr = sattr->nr; |
514 | int index = sattr->index; |
515 | |
516 | struct it87_data *data = dev_get_drvdata(dev); |
517 | unsigned long val; |
518 | |
519 | if (kstrtoul(buf, 10, &val) < 0) |
520 | return -EINVAL; |
521 | |
522 | mutex_lock(&data->update_lock); |
523 | data->in[nr][index] = in_to_reg(data, nr, val); |
524 | it87_write_value(data, |
525 | index == 1 ? IT87_REG_VIN_MIN(nr) |
526 | : IT87_REG_VIN_MAX(nr), |
527 | data->in[nr][index]); |
528 | mutex_unlock(&data->update_lock); |
529 | return count; |
530 | } |
531 | |
532 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0); |
533 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in, |
534 | 0, 1); |
535 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in, |
536 | 0, 2); |
537 | |
538 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0); |
539 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in, |
540 | 1, 1); |
541 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in, |
542 | 1, 2); |
543 | |
544 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0); |
545 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in, |
546 | 2, 1); |
547 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in, |
548 | 2, 2); |
549 | |
550 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0); |
551 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in, |
552 | 3, 1); |
553 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in, |
554 | 3, 2); |
555 | |
556 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0); |
557 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in, |
558 | 4, 1); |
559 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in, |
560 | 4, 2); |
561 | |
562 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0); |
563 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in, |
564 | 5, 1); |
565 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in, |
566 | 5, 2); |
567 | |
568 | static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0); |
569 | static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in, |
570 | 6, 1); |
571 | static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in, |
572 | 6, 2); |
573 | |
574 | static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0); |
575 | static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in, |
576 | 7, 1); |
577 | static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in, |
578 | 7, 2); |
579 | |
580 | static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0); |
581 | |
582 | /* 3 temperatures */ |
583 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
584 | char *buf) |
585 | { |
586 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
587 | int nr = sattr->nr; |
588 | int index = sattr->index; |
589 | struct it87_data *data = it87_update_device(dev); |
590 | |
591 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index])); |
592 | } |
593 | |
594 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, |
595 | const char *buf, size_t count) |
596 | { |
597 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
598 | int nr = sattr->nr; |
599 | int index = sattr->index; |
600 | struct it87_data *data = dev_get_drvdata(dev); |
601 | long val; |
602 | u8 reg, regval; |
603 | |
604 | if (kstrtol(buf, 10, &val) < 0) |
605 | return -EINVAL; |
606 | |
607 | mutex_lock(&data->update_lock); |
608 | |
609 | switch (index) { |
610 | default: |
611 | case 1: |
612 | reg = IT87_REG_TEMP_LOW(nr); |
613 | break; |
614 | case 2: |
615 | reg = IT87_REG_TEMP_HIGH(nr); |
616 | break; |
617 | case 3: |
618 | regval = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
619 | if (!(regval & 0x80)) { |
620 | regval |= 0x80; |
621 | it87_write_value(data, IT87_REG_BEEP_ENABLE, regval); |
622 | } |
623 | data->valid = 0; |
624 | reg = IT87_REG_TEMP_OFFSET[nr]; |
625 | break; |
626 | } |
627 | |
628 | data->temp[nr][index] = TEMP_TO_REG(val); |
629 | it87_write_value(data, reg, data->temp[nr][index]); |
630 | mutex_unlock(&data->update_lock); |
631 | return count; |
632 | } |
633 | |
634 | static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0); |
635 | static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
636 | 0, 1); |
637 | static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
638 | 0, 2); |
639 | static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, |
640 | set_temp, 0, 3); |
641 | static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0); |
642 | static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
643 | 1, 1); |
644 | static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
645 | 1, 2); |
646 | static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, |
647 | set_temp, 1, 3); |
648 | static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0); |
649 | static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
650 | 2, 1); |
651 | static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
652 | 2, 2); |
653 | static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, |
654 | set_temp, 2, 3); |
655 | |
656 | static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr, |
657 | char *buf) |
658 | { |
659 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
660 | int nr = sensor_attr->index; |
661 | struct it87_data *data = it87_update_device(dev); |
662 | u8 reg = data->sensor; /* In case value is updated while used */ |
663 | u8 extra = data->extra; |
664 | |
665 | if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1)) |
666 | || (has_temp_old_peci(data, nr) && (extra & 0x80))) |
667 | return sprintf(buf, "6\n"); /* Intel PECI */ |
668 | if (reg & (1 << nr)) |
669 | return sprintf(buf, "3\n"); /* thermal diode */ |
670 | if (reg & (8 << nr)) |
671 | return sprintf(buf, "4\n"); /* thermistor */ |
672 | return sprintf(buf, "0\n"); /* disabled */ |
673 | } |
674 | |
675 | static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr, |
676 | const char *buf, size_t count) |
677 | { |
678 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
679 | int nr = sensor_attr->index; |
680 | |
681 | struct it87_data *data = dev_get_drvdata(dev); |
682 | long val; |
683 | u8 reg, extra; |
684 | |
685 | if (kstrtol(buf, 10, &val) < 0) |
686 | return -EINVAL; |
687 | |
688 | reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
689 | reg &= ~(1 << nr); |
690 | reg &= ~(8 << nr); |
691 | if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6)) |
692 | reg &= 0x3f; |
693 | extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); |
694 | if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6)) |
695 | extra &= 0x7f; |
696 | if (val == 2) { /* backwards compatibility */ |
697 | dev_warn(dev, |
698 | "Sensor type 2 is deprecated, please use 4 instead\n"); |
699 | val = 4; |
700 | } |
701 | /* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */ |
702 | if (val == 3) |
703 | reg |= 1 << nr; |
704 | else if (val == 4) |
705 | reg |= 8 << nr; |
706 | else if (has_temp_peci(data, nr) && val == 6) |
707 | reg |= (nr + 1) << 6; |
708 | else if (has_temp_old_peci(data, nr) && val == 6) |
709 | extra |= 0x80; |
710 | else if (val != 0) |
711 | return -EINVAL; |
712 | |
713 | mutex_lock(&data->update_lock); |
714 | data->sensor = reg; |
715 | data->extra = extra; |
716 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
717 | if (has_temp_old_peci(data, nr)) |
718 | it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra); |
719 | data->valid = 0; /* Force cache refresh */ |
720 | mutex_unlock(&data->update_lock); |
721 | return count; |
722 | } |
723 | |
724 | static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, |
725 | set_temp_type, 0); |
726 | static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, |
727 | set_temp_type, 1); |
728 | static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, |
729 | set_temp_type, 2); |
730 | |
731 | /* 3 Fans */ |
732 | |
733 | static int pwm_mode(const struct it87_data *data, int nr) |
734 | { |
735 | int ctrl = data->fan_main_ctrl & (1 << nr); |
736 | |
737 | if (ctrl == 0) /* Full speed */ |
738 | return 0; |
739 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
740 | return 2; |
741 | else /* Manual mode */ |
742 | return 1; |
743 | } |
744 | |
745 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
746 | char *buf) |
747 | { |
748 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
749 | int nr = sattr->nr; |
750 | int index = sattr->index; |
751 | int speed; |
752 | struct it87_data *data = it87_update_device(dev); |
753 | |
754 | speed = has_16bit_fans(data) ? |
755 | FAN16_FROM_REG(data->fan[nr][index]) : |
756 | FAN_FROM_REG(data->fan[nr][index], |
757 | DIV_FROM_REG(data->fan_div[nr])); |
758 | return sprintf(buf, "%d\n", speed); |
759 | } |
760 | |
761 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
762 | char *buf) |
763 | { |
764 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
765 | int nr = sensor_attr->index; |
766 | |
767 | struct it87_data *data = it87_update_device(dev); |
768 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); |
769 | } |
770 | static ssize_t show_pwm_enable(struct device *dev, |
771 | struct device_attribute *attr, char *buf) |
772 | { |
773 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
774 | int nr = sensor_attr->index; |
775 | |
776 | struct it87_data *data = it87_update_device(dev); |
777 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
778 | } |
779 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
780 | char *buf) |
781 | { |
782 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
783 | int nr = sensor_attr->index; |
784 | |
785 | struct it87_data *data = it87_update_device(dev); |
786 | return sprintf(buf, "%d\n", |
787 | pwm_from_reg(data, data->pwm_duty[nr])); |
788 | } |
789 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
790 | char *buf) |
791 | { |
792 | struct it87_data *data = it87_update_device(dev); |
793 | int index = (data->fan_ctl >> 4) & 0x07; |
794 | |
795 | return sprintf(buf, "%u\n", pwm_freq[index]); |
796 | } |
797 | |
798 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, |
799 | const char *buf, size_t count) |
800 | { |
801 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
802 | int nr = sattr->nr; |
803 | int index = sattr->index; |
804 | |
805 | struct it87_data *data = dev_get_drvdata(dev); |
806 | long val; |
807 | u8 reg; |
808 | |
809 | if (kstrtol(buf, 10, &val) < 0) |
810 | return -EINVAL; |
811 | |
812 | mutex_lock(&data->update_lock); |
813 | |
814 | if (has_16bit_fans(data)) { |
815 | data->fan[nr][index] = FAN16_TO_REG(val); |
816 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
817 | data->fan[nr][index] & 0xff); |
818 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
819 | data->fan[nr][index] >> 8); |
820 | } else { |
821 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
822 | switch (nr) { |
823 | case 0: |
824 | data->fan_div[nr] = reg & 0x07; |
825 | break; |
826 | case 1: |
827 | data->fan_div[nr] = (reg >> 3) & 0x07; |
828 | break; |
829 | case 2: |
830 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; |
831 | break; |
832 | } |
833 | data->fan[nr][index] = |
834 | FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
835 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
836 | data->fan[nr][index]); |
837 | } |
838 | |
839 | mutex_unlock(&data->update_lock); |
840 | return count; |
841 | } |
842 | |
843 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
844 | const char *buf, size_t count) |
845 | { |
846 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
847 | int nr = sensor_attr->index; |
848 | |
849 | struct it87_data *data = dev_get_drvdata(dev); |
850 | unsigned long val; |
851 | int min; |
852 | u8 old; |
853 | |
854 | if (kstrtoul(buf, 10, &val) < 0) |
855 | return -EINVAL; |
856 | |
857 | mutex_lock(&data->update_lock); |
858 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
859 | |
860 | /* Save fan min limit */ |
861 | min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr])); |
862 | |
863 | switch (nr) { |
864 | case 0: |
865 | case 1: |
866 | data->fan_div[nr] = DIV_TO_REG(val); |
867 | break; |
868 | case 2: |
869 | if (val < 8) |
870 | data->fan_div[nr] = 1; |
871 | else |
872 | data->fan_div[nr] = 3; |
873 | } |
874 | val = old & 0x80; |
875 | val |= (data->fan_div[0] & 0x07); |
876 | val |= (data->fan_div[1] & 0x07) << 3; |
877 | if (data->fan_div[2] == 3) |
878 | val |= 0x1 << 6; |
879 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
880 | |
881 | /* Restore fan min limit */ |
882 | data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
883 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]); |
884 | |
885 | mutex_unlock(&data->update_lock); |
886 | return count; |
887 | } |
888 | |
889 | /* Returns 0 if OK, -EINVAL otherwise */ |
890 | static int check_trip_points(struct device *dev, int nr) |
891 | { |
892 | const struct it87_data *data = dev_get_drvdata(dev); |
893 | int i, err = 0; |
894 | |
895 | if (has_old_autopwm(data)) { |
896 | for (i = 0; i < 3; i++) { |
897 | if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) |
898 | err = -EINVAL; |
899 | } |
900 | for (i = 0; i < 2; i++) { |
901 | if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) |
902 | err = -EINVAL; |
903 | } |
904 | } |
905 | |
906 | if (err) { |
907 | dev_err(dev, |
908 | "Inconsistent trip points, not switching to automatic mode\n"); |
909 | dev_err(dev, "Adjust the trip points and try again\n"); |
910 | } |
911 | return err; |
912 | } |
913 | |
914 | static ssize_t set_pwm_enable(struct device *dev, |
915 | struct device_attribute *attr, const char *buf, size_t count) |
916 | { |
917 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
918 | int nr = sensor_attr->index; |
919 | |
920 | struct it87_data *data = dev_get_drvdata(dev); |
921 | long val; |
922 | |
923 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
924 | return -EINVAL; |
925 | |
926 | /* Check trip points before switching to automatic mode */ |
927 | if (val == 2) { |
928 | if (check_trip_points(dev, nr) < 0) |
929 | return -EINVAL; |
930 | } |
931 | |
932 | mutex_lock(&data->update_lock); |
933 | |
934 | if (val == 0) { |
935 | int tmp; |
936 | /* make sure the fan is on when in on/off mode */ |
937 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
938 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); |
939 | /* set on/off mode */ |
940 | data->fan_main_ctrl &= ~(1 << nr); |
941 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
942 | data->fan_main_ctrl); |
943 | } else { |
944 | if (val == 1) /* Manual mode */ |
945 | data->pwm_ctrl[nr] = has_newer_autopwm(data) ? |
946 | data->pwm_temp_map[nr] : |
947 | data->pwm_duty[nr]; |
948 | else /* Automatic mode */ |
949 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
950 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
951 | /* set SmartGuardian mode */ |
952 | data->fan_main_ctrl |= (1 << nr); |
953 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
954 | data->fan_main_ctrl); |
955 | } |
956 | |
957 | mutex_unlock(&data->update_lock); |
958 | return count; |
959 | } |
960 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
961 | const char *buf, size_t count) |
962 | { |
963 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
964 | int nr = sensor_attr->index; |
965 | |
966 | struct it87_data *data = dev_get_drvdata(dev); |
967 | long val; |
968 | |
969 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
970 | return -EINVAL; |
971 | |
972 | mutex_lock(&data->update_lock); |
973 | if (has_newer_autopwm(data)) { |
974 | /* |
975 | * If we are in automatic mode, the PWM duty cycle register |
976 | * is read-only so we can't write the value. |
977 | */ |
978 | if (data->pwm_ctrl[nr] & 0x80) { |
979 | mutex_unlock(&data->update_lock); |
980 | return -EBUSY; |
981 | } |
982 | data->pwm_duty[nr] = pwm_to_reg(data, val); |
983 | it87_write_value(data, IT87_REG_PWM_DUTY(nr), |
984 | data->pwm_duty[nr]); |
985 | } else { |
986 | data->pwm_duty[nr] = pwm_to_reg(data, val); |
987 | /* |
988 | * If we are in manual mode, write the duty cycle immediately; |
989 | * otherwise, just store it for later use. |
990 | */ |
991 | if (!(data->pwm_ctrl[nr] & 0x80)) { |
992 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; |
993 | it87_write_value(data, IT87_REG_PWM(nr), |
994 | data->pwm_ctrl[nr]); |
995 | } |
996 | } |
997 | mutex_unlock(&data->update_lock); |
998 | return count; |
999 | } |
1000 | static ssize_t set_pwm_freq(struct device *dev, |
1001 | struct device_attribute *attr, const char *buf, size_t count) |
1002 | { |
1003 | struct it87_data *data = dev_get_drvdata(dev); |
1004 | unsigned long val; |
1005 | int i; |
1006 | |
1007 | if (kstrtoul(buf, 10, &val) < 0) |
1008 | return -EINVAL; |
1009 | |
1010 | /* Search for the nearest available frequency */ |
1011 | for (i = 0; i < 7; i++) { |
1012 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) |
1013 | break; |
1014 | } |
1015 | |
1016 | mutex_lock(&data->update_lock); |
1017 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
1018 | data->fan_ctl |= i << 4; |
1019 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
1020 | mutex_unlock(&data->update_lock); |
1021 | |
1022 | return count; |
1023 | } |
1024 | static ssize_t show_pwm_temp_map(struct device *dev, |
1025 | struct device_attribute *attr, char *buf) |
1026 | { |
1027 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
1028 | int nr = sensor_attr->index; |
1029 | |
1030 | struct it87_data *data = it87_update_device(dev); |
1031 | int map; |
1032 | |
1033 | if (data->pwm_temp_map[nr] < 3) |
1034 | map = 1 << data->pwm_temp_map[nr]; |
1035 | else |
1036 | map = 0; /* Should never happen */ |
1037 | return sprintf(buf, "%d\n", map); |
1038 | } |
1039 | static ssize_t set_pwm_temp_map(struct device *dev, |
1040 | struct device_attribute *attr, const char *buf, size_t count) |
1041 | { |
1042 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
1043 | int nr = sensor_attr->index; |
1044 | |
1045 | struct it87_data *data = dev_get_drvdata(dev); |
1046 | long val; |
1047 | u8 reg; |
1048 | |
1049 | /* |
1050 | * This check can go away if we ever support automatic fan speed |
1051 | * control on newer chips. |
1052 | */ |
1053 | if (!has_old_autopwm(data)) { |
1054 | dev_notice(dev, "Mapping change disabled for safety reasons\n"); |
1055 | return -EINVAL; |
1056 | } |
1057 | |
1058 | if (kstrtol(buf, 10, &val) < 0) |
1059 | return -EINVAL; |
1060 | |
1061 | switch (val) { |
1062 | case (1 << 0): |
1063 | reg = 0x00; |
1064 | break; |
1065 | case (1 << 1): |
1066 | reg = 0x01; |
1067 | break; |
1068 | case (1 << 2): |
1069 | reg = 0x02; |
1070 | break; |
1071 | default: |
1072 | return -EINVAL; |
1073 | } |
1074 | |
1075 | mutex_lock(&data->update_lock); |
1076 | data->pwm_temp_map[nr] = reg; |
1077 | /* |
1078 | * If we are in automatic mode, write the temp mapping immediately; |
1079 | * otherwise, just store it for later use. |
1080 | */ |
1081 | if (data->pwm_ctrl[nr] & 0x80) { |
1082 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
1083 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
1084 | } |
1085 | mutex_unlock(&data->update_lock); |
1086 | return count; |
1087 | } |
1088 | |
1089 | static ssize_t show_auto_pwm(struct device *dev, |
1090 | struct device_attribute *attr, char *buf) |
1091 | { |
1092 | struct it87_data *data = it87_update_device(dev); |
1093 | struct sensor_device_attribute_2 *sensor_attr = |
1094 | to_sensor_dev_attr_2(attr); |
1095 | int nr = sensor_attr->nr; |
1096 | int point = sensor_attr->index; |
1097 | |
1098 | return sprintf(buf, "%d\n", |
1099 | pwm_from_reg(data, data->auto_pwm[nr][point])); |
1100 | } |
1101 | |
1102 | static ssize_t set_auto_pwm(struct device *dev, |
1103 | struct device_attribute *attr, const char *buf, size_t count) |
1104 | { |
1105 | struct it87_data *data = dev_get_drvdata(dev); |
1106 | struct sensor_device_attribute_2 *sensor_attr = |
1107 | to_sensor_dev_attr_2(attr); |
1108 | int nr = sensor_attr->nr; |
1109 | int point = sensor_attr->index; |
1110 | long val; |
1111 | |
1112 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1113 | return -EINVAL; |
1114 | |
1115 | mutex_lock(&data->update_lock); |
1116 | data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
1117 | it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
1118 | data->auto_pwm[nr][point]); |
1119 | mutex_unlock(&data->update_lock); |
1120 | return count; |
1121 | } |
1122 | |
1123 | static ssize_t show_auto_temp(struct device *dev, |
1124 | struct device_attribute *attr, char *buf) |
1125 | { |
1126 | struct it87_data *data = it87_update_device(dev); |
1127 | struct sensor_device_attribute_2 *sensor_attr = |
1128 | to_sensor_dev_attr_2(attr); |
1129 | int nr = sensor_attr->nr; |
1130 | int point = sensor_attr->index; |
1131 | |
1132 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); |
1133 | } |
1134 | |
1135 | static ssize_t set_auto_temp(struct device *dev, |
1136 | struct device_attribute *attr, const char *buf, size_t count) |
1137 | { |
1138 | struct it87_data *data = dev_get_drvdata(dev); |
1139 | struct sensor_device_attribute_2 *sensor_attr = |
1140 | to_sensor_dev_attr_2(attr); |
1141 | int nr = sensor_attr->nr; |
1142 | int point = sensor_attr->index; |
1143 | long val; |
1144 | |
1145 | if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) |
1146 | return -EINVAL; |
1147 | |
1148 | mutex_lock(&data->update_lock); |
1149 | data->auto_temp[nr][point] = TEMP_TO_REG(val); |
1150 | it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), |
1151 | data->auto_temp[nr][point]); |
1152 | mutex_unlock(&data->update_lock); |
1153 | return count; |
1154 | } |
1155 | |
1156 | static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0); |
1157 | static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
1158 | 0, 1); |
1159 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, |
1160 | set_fan_div, 0); |
1161 | |
1162 | static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0); |
1163 | static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
1164 | 1, 1); |
1165 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, |
1166 | set_fan_div, 1); |
1167 | |
1168 | static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0); |
1169 | static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
1170 | 2, 1); |
1171 | static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div, |
1172 | set_fan_div, 2); |
1173 | |
1174 | static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0); |
1175 | static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
1176 | 3, 1); |
1177 | |
1178 | static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0); |
1179 | static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
1180 | 4, 1); |
1181 | |
1182 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, |
1183 | show_pwm_enable, set_pwm_enable, 0); |
1184 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); |
1185 | static DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq); |
1186 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, |
1187 | show_pwm_temp_map, set_pwm_temp_map, 0); |
1188 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, |
1189 | show_auto_pwm, set_auto_pwm, 0, 0); |
1190 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, |
1191 | show_auto_pwm, set_auto_pwm, 0, 1); |
1192 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR, |
1193 | show_auto_pwm, set_auto_pwm, 0, 2); |
1194 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO, |
1195 | show_auto_pwm, NULL, 0, 3); |
1196 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, |
1197 | show_auto_temp, set_auto_temp, 0, 1); |
1198 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
1199 | show_auto_temp, set_auto_temp, 0, 0); |
1200 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, |
1201 | show_auto_temp, set_auto_temp, 0, 2); |
1202 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, |
1203 | show_auto_temp, set_auto_temp, 0, 3); |
1204 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR, |
1205 | show_auto_temp, set_auto_temp, 0, 4); |
1206 | |
1207 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, |
1208 | show_pwm_enable, set_pwm_enable, 1); |
1209 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); |
1210 | static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL); |
1211 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, |
1212 | show_pwm_temp_map, set_pwm_temp_map, 1); |
1213 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, |
1214 | show_auto_pwm, set_auto_pwm, 1, 0); |
1215 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, |
1216 | show_auto_pwm, set_auto_pwm, 1, 1); |
1217 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR, |
1218 | show_auto_pwm, set_auto_pwm, 1, 2); |
1219 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO, |
1220 | show_auto_pwm, NULL, 1, 3); |
1221 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, |
1222 | show_auto_temp, set_auto_temp, 1, 1); |
1223 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
1224 | show_auto_temp, set_auto_temp, 1, 0); |
1225 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, |
1226 | show_auto_temp, set_auto_temp, 1, 2); |
1227 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, |
1228 | show_auto_temp, set_auto_temp, 1, 3); |
1229 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR, |
1230 | show_auto_temp, set_auto_temp, 1, 4); |
1231 | |
1232 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, |
1233 | show_pwm_enable, set_pwm_enable, 2); |
1234 | static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2); |
1235 | static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL); |
1236 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, |
1237 | show_pwm_temp_map, set_pwm_temp_map, 2); |
1238 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, |
1239 | show_auto_pwm, set_auto_pwm, 2, 0); |
1240 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, |
1241 | show_auto_pwm, set_auto_pwm, 2, 1); |
1242 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR, |
1243 | show_auto_pwm, set_auto_pwm, 2, 2); |
1244 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO, |
1245 | show_auto_pwm, NULL, 2, 3); |
1246 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, |
1247 | show_auto_temp, set_auto_temp, 2, 1); |
1248 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
1249 | show_auto_temp, set_auto_temp, 2, 0); |
1250 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, |
1251 | show_auto_temp, set_auto_temp, 2, 2); |
1252 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, |
1253 | show_auto_temp, set_auto_temp, 2, 3); |
1254 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR, |
1255 | show_auto_temp, set_auto_temp, 2, 4); |
1256 | |
1257 | /* Alarms */ |
1258 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
1259 | char *buf) |
1260 | { |
1261 | struct it87_data *data = it87_update_device(dev); |
1262 | return sprintf(buf, "%u\n", data->alarms); |
1263 | } |
1264 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1265 | |
1266 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
1267 | char *buf) |
1268 | { |
1269 | int bitnr = to_sensor_dev_attr(attr)->index; |
1270 | struct it87_data *data = it87_update_device(dev); |
1271 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); |
1272 | } |
1273 | |
1274 | static ssize_t clear_intrusion(struct device *dev, struct device_attribute |
1275 | *attr, const char *buf, size_t count) |
1276 | { |
1277 | struct it87_data *data = dev_get_drvdata(dev); |
1278 | long val; |
1279 | int config; |
1280 | |
1281 | if (kstrtol(buf, 10, &val) < 0 || val != 0) |
1282 | return -EINVAL; |
1283 | |
1284 | mutex_lock(&data->update_lock); |
1285 | config = it87_read_value(data, IT87_REG_CONFIG); |
1286 | if (config < 0) { |
1287 | count = config; |
1288 | } else { |
1289 | config |= 1 << 5; |
1290 | it87_write_value(data, IT87_REG_CONFIG, config); |
1291 | /* Invalidate cache to force re-read */ |
1292 | data->valid = 0; |
1293 | } |
1294 | mutex_unlock(&data->update_lock); |
1295 | |
1296 | return count; |
1297 | } |
1298 | |
1299 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
1300 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); |
1301 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); |
1302 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); |
1303 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); |
1304 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); |
1305 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); |
1306 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); |
1307 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); |
1308 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); |
1309 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); |
1310 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); |
1311 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); |
1312 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); |
1313 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); |
1314 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); |
1315 | static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, |
1316 | show_alarm, clear_intrusion, 4); |
1317 | |
1318 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
1319 | char *buf) |
1320 | { |
1321 | int bitnr = to_sensor_dev_attr(attr)->index; |
1322 | struct it87_data *data = it87_update_device(dev); |
1323 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); |
1324 | } |
1325 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, |
1326 | const char *buf, size_t count) |
1327 | { |
1328 | int bitnr = to_sensor_dev_attr(attr)->index; |
1329 | struct it87_data *data = dev_get_drvdata(dev); |
1330 | long val; |
1331 | |
1332 | if (kstrtol(buf, 10, &val) < 0 |
1333 | || (val != 0 && val != 1)) |
1334 | return -EINVAL; |
1335 | |
1336 | mutex_lock(&data->update_lock); |
1337 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
1338 | if (val) |
1339 | data->beeps |= (1 << bitnr); |
1340 | else |
1341 | data->beeps &= ~(1 << bitnr); |
1342 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); |
1343 | mutex_unlock(&data->update_lock); |
1344 | return count; |
1345 | } |
1346 | |
1347 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, |
1348 | show_beep, set_beep, 1); |
1349 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); |
1350 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); |
1351 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); |
1352 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); |
1353 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); |
1354 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); |
1355 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); |
1356 | /* fanX_beep writability is set later */ |
1357 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); |
1358 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); |
1359 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); |
1360 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); |
1361 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); |
1362 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, |
1363 | show_beep, set_beep, 2); |
1364 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); |
1365 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); |
1366 | |
1367 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1368 | char *buf) |
1369 | { |
1370 | struct it87_data *data = dev_get_drvdata(dev); |
1371 | return sprintf(buf, "%u\n", data->vrm); |
1372 | } |
1373 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1374 | const char *buf, size_t count) |
1375 | { |
1376 | struct it87_data *data = dev_get_drvdata(dev); |
1377 | unsigned long val; |
1378 | |
1379 | if (kstrtoul(buf, 10, &val) < 0) |
1380 | return -EINVAL; |
1381 | |
1382 | data->vrm = val; |
1383 | |
1384 | return count; |
1385 | } |
1386 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); |
1387 | |
1388 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1389 | char *buf) |
1390 | { |
1391 | struct it87_data *data = it87_update_device(dev); |
1392 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); |
1393 | } |
1394 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); |
1395 | |
1396 | static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
1397 | char *buf) |
1398 | { |
1399 | static const char * const labels[] = { |
1400 | "+5V", |
1401 | "5VSB", |
1402 | "Vbat", |
1403 | }; |
1404 | static const char * const labels_it8721[] = { |
1405 | "+3.3V", |
1406 | "3VSB", |
1407 | "Vbat", |
1408 | }; |
1409 | struct it87_data *data = dev_get_drvdata(dev); |
1410 | int nr = to_sensor_dev_attr(attr)->index; |
1411 | |
1412 | return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr] |
1413 | : labels[nr]); |
1414 | } |
1415 | static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); |
1416 | static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); |
1417 | static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); |
1418 | |
1419 | static ssize_t show_name(struct device *dev, struct device_attribute |
1420 | *devattr, char *buf) |
1421 | { |
1422 | struct it87_data *data = dev_get_drvdata(dev); |
1423 | return sprintf(buf, "%s\n", data->name); |
1424 | } |
1425 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
1426 | |
1427 | static struct attribute *it87_attributes_in[9][5] = { |
1428 | { |
1429 | &sensor_dev_attr_in0_input.dev_attr.attr, |
1430 | &sensor_dev_attr_in0_min.dev_attr.attr, |
1431 | &sensor_dev_attr_in0_max.dev_attr.attr, |
1432 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1433 | NULL |
1434 | }, { |
1435 | &sensor_dev_attr_in1_input.dev_attr.attr, |
1436 | &sensor_dev_attr_in1_min.dev_attr.attr, |
1437 | &sensor_dev_attr_in1_max.dev_attr.attr, |
1438 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1439 | NULL |
1440 | }, { |
1441 | &sensor_dev_attr_in2_input.dev_attr.attr, |
1442 | &sensor_dev_attr_in2_min.dev_attr.attr, |
1443 | &sensor_dev_attr_in2_max.dev_attr.attr, |
1444 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1445 | NULL |
1446 | }, { |
1447 | &sensor_dev_attr_in3_input.dev_attr.attr, |
1448 | &sensor_dev_attr_in3_min.dev_attr.attr, |
1449 | &sensor_dev_attr_in3_max.dev_attr.attr, |
1450 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1451 | NULL |
1452 | }, { |
1453 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1454 | &sensor_dev_attr_in4_min.dev_attr.attr, |
1455 | &sensor_dev_attr_in4_max.dev_attr.attr, |
1456 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
1457 | NULL |
1458 | }, { |
1459 | &sensor_dev_attr_in5_input.dev_attr.attr, |
1460 | &sensor_dev_attr_in5_min.dev_attr.attr, |
1461 | &sensor_dev_attr_in5_max.dev_attr.attr, |
1462 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1463 | NULL |
1464 | }, { |
1465 | &sensor_dev_attr_in6_input.dev_attr.attr, |
1466 | &sensor_dev_attr_in6_min.dev_attr.attr, |
1467 | &sensor_dev_attr_in6_max.dev_attr.attr, |
1468 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
1469 | NULL |
1470 | }, { |
1471 | &sensor_dev_attr_in7_input.dev_attr.attr, |
1472 | &sensor_dev_attr_in7_min.dev_attr.attr, |
1473 | &sensor_dev_attr_in7_max.dev_attr.attr, |
1474 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
1475 | NULL |
1476 | }, { |
1477 | &sensor_dev_attr_in8_input.dev_attr.attr, |
1478 | NULL |
1479 | } }; |
1480 | |
1481 | static const struct attribute_group it87_group_in[9] = { |
1482 | { .attrs = it87_attributes_in[0] }, |
1483 | { .attrs = it87_attributes_in[1] }, |
1484 | { .attrs = it87_attributes_in[2] }, |
1485 | { .attrs = it87_attributes_in[3] }, |
1486 | { .attrs = it87_attributes_in[4] }, |
1487 | { .attrs = it87_attributes_in[5] }, |
1488 | { .attrs = it87_attributes_in[6] }, |
1489 | { .attrs = it87_attributes_in[7] }, |
1490 | { .attrs = it87_attributes_in[8] }, |
1491 | }; |
1492 | |
1493 | static struct attribute *it87_attributes_temp[3][6] = { |
1494 | { |
1495 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
1496 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1497 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
1498 | &sensor_dev_attr_temp1_type.dev_attr.attr, |
1499 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1500 | NULL |
1501 | } , { |
1502 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
1503 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
1504 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
1505 | &sensor_dev_attr_temp2_type.dev_attr.attr, |
1506 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
1507 | NULL |
1508 | } , { |
1509 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
1510 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
1511 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
1512 | &sensor_dev_attr_temp3_type.dev_attr.attr, |
1513 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
1514 | NULL |
1515 | } }; |
1516 | |
1517 | static const struct attribute_group it87_group_temp[3] = { |
1518 | { .attrs = it87_attributes_temp[0] }, |
1519 | { .attrs = it87_attributes_temp[1] }, |
1520 | { .attrs = it87_attributes_temp[2] }, |
1521 | }; |
1522 | |
1523 | static struct attribute *it87_attributes_temp_offset[] = { |
1524 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
1525 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
1526 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
1527 | }; |
1528 | |
1529 | static struct attribute *it87_attributes[] = { |
1530 | &dev_attr_alarms.attr, |
1531 | &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
1532 | &dev_attr_name.attr, |
1533 | NULL |
1534 | }; |
1535 | |
1536 | static const struct attribute_group it87_group = { |
1537 | .attrs = it87_attributes, |
1538 | }; |
1539 | |
1540 | static struct attribute *it87_attributes_in_beep[] = { |
1541 | &sensor_dev_attr_in0_beep.dev_attr.attr, |
1542 | &sensor_dev_attr_in1_beep.dev_attr.attr, |
1543 | &sensor_dev_attr_in2_beep.dev_attr.attr, |
1544 | &sensor_dev_attr_in3_beep.dev_attr.attr, |
1545 | &sensor_dev_attr_in4_beep.dev_attr.attr, |
1546 | &sensor_dev_attr_in5_beep.dev_attr.attr, |
1547 | &sensor_dev_attr_in6_beep.dev_attr.attr, |
1548 | &sensor_dev_attr_in7_beep.dev_attr.attr, |
1549 | NULL |
1550 | }; |
1551 | |
1552 | static struct attribute *it87_attributes_temp_beep[] = { |
1553 | &sensor_dev_attr_temp1_beep.dev_attr.attr, |
1554 | &sensor_dev_attr_temp2_beep.dev_attr.attr, |
1555 | &sensor_dev_attr_temp3_beep.dev_attr.attr, |
1556 | }; |
1557 | |
1558 | static struct attribute *it87_attributes_fan[5][3+1] = { { |
1559 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1560 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
1561 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1562 | NULL |
1563 | }, { |
1564 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1565 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
1566 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1567 | NULL |
1568 | }, { |
1569 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1570 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
1571 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1572 | NULL |
1573 | }, { |
1574 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1575 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
1576 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1577 | NULL |
1578 | }, { |
1579 | &sensor_dev_attr_fan5_input.dev_attr.attr, |
1580 | &sensor_dev_attr_fan5_min.dev_attr.attr, |
1581 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1582 | NULL |
1583 | } }; |
1584 | |
1585 | static const struct attribute_group it87_group_fan[5] = { |
1586 | { .attrs = it87_attributes_fan[0] }, |
1587 | { .attrs = it87_attributes_fan[1] }, |
1588 | { .attrs = it87_attributes_fan[2] }, |
1589 | { .attrs = it87_attributes_fan[3] }, |
1590 | { .attrs = it87_attributes_fan[4] }, |
1591 | }; |
1592 | |
1593 | static const struct attribute *it87_attributes_fan_div[] = { |
1594 | &sensor_dev_attr_fan1_div.dev_attr.attr, |
1595 | &sensor_dev_attr_fan2_div.dev_attr.attr, |
1596 | &sensor_dev_attr_fan3_div.dev_attr.attr, |
1597 | }; |
1598 | |
1599 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
1600 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
1601 | &sensor_dev_attr_pwm1.dev_attr.attr, |
1602 | &dev_attr_pwm1_freq.attr, |
1603 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
1604 | NULL |
1605 | }, { |
1606 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
1607 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1608 | &dev_attr_pwm2_freq.attr, |
1609 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
1610 | NULL |
1611 | }, { |
1612 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
1613 | &sensor_dev_attr_pwm3.dev_attr.attr, |
1614 | &dev_attr_pwm3_freq.attr, |
1615 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
1616 | NULL |
1617 | } }; |
1618 | |
1619 | static const struct attribute_group it87_group_pwm[3] = { |
1620 | { .attrs = it87_attributes_pwm[0] }, |
1621 | { .attrs = it87_attributes_pwm[1] }, |
1622 | { .attrs = it87_attributes_pwm[2] }, |
1623 | }; |
1624 | |
1625 | static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
1626 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
1627 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
1628 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, |
1629 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, |
1630 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, |
1631 | &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, |
1632 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, |
1633 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, |
1634 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, |
1635 | NULL |
1636 | }, { |
1637 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
1638 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
1639 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, |
1640 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, |
1641 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, |
1642 | &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, |
1643 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, |
1644 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, |
1645 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, |
1646 | NULL |
1647 | }, { |
1648 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
1649 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
1650 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, |
1651 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, |
1652 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, |
1653 | &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, |
1654 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, |
1655 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, |
1656 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, |
1657 | NULL |
1658 | } }; |
1659 | |
1660 | static const struct attribute_group it87_group_autopwm[3] = { |
1661 | { .attrs = it87_attributes_autopwm[0] }, |
1662 | { .attrs = it87_attributes_autopwm[1] }, |
1663 | { .attrs = it87_attributes_autopwm[2] }, |
1664 | }; |
1665 | |
1666 | static struct attribute *it87_attributes_fan_beep[] = { |
1667 | &sensor_dev_attr_fan1_beep.dev_attr.attr, |
1668 | &sensor_dev_attr_fan2_beep.dev_attr.attr, |
1669 | &sensor_dev_attr_fan3_beep.dev_attr.attr, |
1670 | &sensor_dev_attr_fan4_beep.dev_attr.attr, |
1671 | &sensor_dev_attr_fan5_beep.dev_attr.attr, |
1672 | }; |
1673 | |
1674 | static struct attribute *it87_attributes_vid[] = { |
1675 | &dev_attr_vrm.attr, |
1676 | &dev_attr_cpu0_vid.attr, |
1677 | NULL |
1678 | }; |
1679 | |
1680 | static const struct attribute_group it87_group_vid = { |
1681 | .attrs = it87_attributes_vid, |
1682 | }; |
1683 | |
1684 | static struct attribute *it87_attributes_label[] = { |
1685 | &sensor_dev_attr_in3_label.dev_attr.attr, |
1686 | &sensor_dev_attr_in7_label.dev_attr.attr, |
1687 | &sensor_dev_attr_in8_label.dev_attr.attr, |
1688 | NULL |
1689 | }; |
1690 | |
1691 | static const struct attribute_group it87_group_label = { |
1692 | .attrs = it87_attributes_label, |
1693 | }; |
1694 | |
1695 | /* SuperIO detection - will change isa_address if a chip is found */ |
1696 | static int __init it87_find(unsigned short *address, |
1697 | struct it87_sio_data *sio_data) |
1698 | { |
1699 | int err; |
1700 | u16 chip_type; |
1701 | const char *board_vendor, *board_name; |
1702 | |
1703 | err = superio_enter(); |
1704 | if (err) |
1705 | return err; |
1706 | |
1707 | err = -ENODEV; |
1708 | chip_type = force_id ? force_id : superio_inw(DEVID); |
1709 | |
1710 | switch (chip_type) { |
1711 | case IT8705F_DEVID: |
1712 | sio_data->type = it87; |
1713 | break; |
1714 | case IT8712F_DEVID: |
1715 | sio_data->type = it8712; |
1716 | break; |
1717 | case IT8716F_DEVID: |
1718 | case IT8726F_DEVID: |
1719 | sio_data->type = it8716; |
1720 | break; |
1721 | case IT8718F_DEVID: |
1722 | sio_data->type = it8718; |
1723 | break; |
1724 | case IT8720F_DEVID: |
1725 | sio_data->type = it8720; |
1726 | break; |
1727 | case IT8721F_DEVID: |
1728 | sio_data->type = it8721; |
1729 | break; |
1730 | case IT8728F_DEVID: |
1731 | sio_data->type = it8728; |
1732 | break; |
1733 | case IT8771E_DEVID: |
1734 | sio_data->type = it8771; |
1735 | break; |
1736 | case IT8772E_DEVID: |
1737 | sio_data->type = it8772; |
1738 | break; |
1739 | case IT8782F_DEVID: |
1740 | sio_data->type = it8782; |
1741 | break; |
1742 | case IT8783E_DEVID: |
1743 | sio_data->type = it8783; |
1744 | break; |
1745 | case 0xffff: /* No device at all */ |
1746 | goto exit; |
1747 | default: |
1748 | pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
1749 | goto exit; |
1750 | } |
1751 | |
1752 | superio_select(PME); |
1753 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
1754 | pr_info("Device not activated, skipping\n"); |
1755 | goto exit; |
1756 | } |
1757 | |
1758 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); |
1759 | if (*address == 0) { |
1760 | pr_info("Base address not set, skipping\n"); |
1761 | goto exit; |
1762 | } |
1763 | |
1764 | err = 0; |
1765 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
1766 | pr_info("Found IT%04xF chip at 0x%x, revision %d\n", |
1767 | chip_type, *address, sio_data->revision); |
1768 | |
1769 | /* in8 (Vbat) is always internal */ |
1770 | sio_data->internal = (1 << 2); |
1771 | |
1772 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
1773 | if (sio_data->type == it87) { |
1774 | /* The IT8705F doesn't have VID pins at all */ |
1775 | sio_data->skip_vid = 1; |
1776 | |
1777 | /* The IT8705F has a different LD number for GPIO */ |
1778 | superio_select(5); |
1779 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
1780 | } else if (sio_data->type == it8783) { |
1781 | int reg25, reg27, reg2A, reg2C, regEF; |
1782 | |
1783 | sio_data->skip_vid = 1; /* No VID */ |
1784 | |
1785 | superio_select(GPIO); |
1786 | |
1787 | reg25 = superio_inb(IT87_SIO_GPIO1_REG); |
1788 | reg27 = superio_inb(IT87_SIO_GPIO3_REG); |
1789 | reg2A = superio_inb(IT87_SIO_PINX1_REG); |
1790 | reg2C = superio_inb(IT87_SIO_PINX2_REG); |
1791 | regEF = superio_inb(IT87_SIO_SPI_REG); |
1792 | |
1793 | /* Check if fan3 is there or not */ |
1794 | if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2))) |
1795 | sio_data->skip_fan |= (1 << 2); |
1796 | if ((reg25 & (1 << 4)) |
1797 | || (!(reg2A & (1 << 1)) && (regEF & (1 << 0)))) |
1798 | sio_data->skip_pwm |= (1 << 2); |
1799 | |
1800 | /* Check if fan2 is there or not */ |
1801 | if (reg27 & (1 << 7)) |
1802 | sio_data->skip_fan |= (1 << 1); |
1803 | if (reg27 & (1 << 3)) |
1804 | sio_data->skip_pwm |= (1 << 1); |
1805 | |
1806 | /* VIN5 */ |
1807 | if ((reg27 & (1 << 0)) || (reg2C & (1 << 2))) |
1808 | sio_data->skip_in |= (1 << 5); /* No VIN5 */ |
1809 | |
1810 | /* VIN6 */ |
1811 | if (reg27 & (1 << 1)) |
1812 | sio_data->skip_in |= (1 << 6); /* No VIN6 */ |
1813 | |
1814 | /* |
1815 | * VIN7 |
1816 | * Does not depend on bit 2 of Reg2C, contrary to datasheet. |
1817 | */ |
1818 | if (reg27 & (1 << 2)) { |
1819 | /* |
1820 | * The data sheet is a bit unclear regarding the |
1821 | * internal voltage divider for VCCH5V. It says |
1822 | * "This bit enables and switches VIN7 (pin 91) to the |
1823 | * internal voltage divider for VCCH5V". |
1824 | * This is different to other chips, where the internal |
1825 | * voltage divider would connect VIN7 to an internal |
1826 | * voltage source. Maybe that is the case here as well. |
1827 | * |
1828 | * Since we don't know for sure, re-route it if that is |
1829 | * not the case, and ask the user to report if the |
1830 | * resulting voltage is sane. |
1831 | */ |
1832 | if (!(reg2C & (1 << 1))) { |
1833 | reg2C |= (1 << 1); |
1834 | superio_outb(IT87_SIO_PINX2_REG, reg2C); |
1835 | pr_notice("Routing internal VCCH5V to in7.\n"); |
1836 | } |
1837 | pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n"); |
1838 | pr_notice("Please report if it displays a reasonable voltage.\n"); |
1839 | } |
1840 | |
1841 | if (reg2C & (1 << 0)) |
1842 | sio_data->internal |= (1 << 0); |
1843 | if (reg2C & (1 << 1)) |
1844 | sio_data->internal |= (1 << 1); |
1845 | |
1846 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
1847 | |
1848 | } else { |
1849 | int reg; |
1850 | bool uart6; |
1851 | |
1852 | superio_select(GPIO); |
1853 | |
1854 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
1855 | if (sio_data->type == it8721 || sio_data->type == it8728 || |
1856 | sio_data->type == it8771 || sio_data->type == it8772 || |
1857 | sio_data->type == it8782) { |
1858 | /* |
1859 | * IT8721F/IT8758E, and IT8782F don't have VID pins |
1860 | * at all, not sure about the IT8728F and compatibles. |
1861 | */ |
1862 | sio_data->skip_vid = 1; |
1863 | } else { |
1864 | /* We need at least 4 VID pins */ |
1865 | if (reg & 0x0f) { |
1866 | pr_info("VID is disabled (pins used for GPIO)\n"); |
1867 | sio_data->skip_vid = 1; |
1868 | } |
1869 | } |
1870 | |
1871 | /* Check if fan3 is there or not */ |
1872 | if (reg & (1 << 6)) |
1873 | sio_data->skip_pwm |= (1 << 2); |
1874 | if (reg & (1 << 7)) |
1875 | sio_data->skip_fan |= (1 << 2); |
1876 | |
1877 | /* Check if fan2 is there or not */ |
1878 | reg = superio_inb(IT87_SIO_GPIO5_REG); |
1879 | if (reg & (1 << 1)) |
1880 | sio_data->skip_pwm |= (1 << 1); |
1881 | if (reg & (1 << 2)) |
1882 | sio_data->skip_fan |= (1 << 1); |
1883 | |
1884 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1885 | && !(sio_data->skip_vid)) |
1886 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
1887 | |
1888 | reg = superio_inb(IT87_SIO_PINX2_REG); |
1889 | |
1890 | uart6 = sio_data->type == it8782 && (reg & (1 << 2)); |
1891 | |
1892 | /* |
1893 | * The IT8720F has no VIN7 pin, so VCCH should always be |
1894 | * routed internally to VIN7 with an internal divider. |
1895 | * Curiously, there still is a configuration bit to control |
1896 | * this, which means it can be set incorrectly. And even |
1897 | * more curiously, many boards out there are improperly |
1898 | * configured, even though the IT8720F datasheet claims |
1899 | * that the internal routing of VCCH to VIN7 is the default |
1900 | * setting. So we force the internal routing in this case. |
1901 | * |
1902 | * On IT8782F, VIN7 is multiplexed with one of the UART6 pins. |
1903 | * If UART6 is enabled, re-route VIN7 to the internal divider |
1904 | * if that is not already the case. |
1905 | */ |
1906 | if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) { |
1907 | reg |= (1 << 1); |
1908 | superio_outb(IT87_SIO_PINX2_REG, reg); |
1909 | pr_notice("Routing internal VCCH to in7\n"); |
1910 | } |
1911 | if (reg & (1 << 0)) |
1912 | sio_data->internal |= (1 << 0); |
1913 | if ((reg & (1 << 1)) || sio_data->type == it8721 || |
1914 | sio_data->type == it8728 || |
1915 | sio_data->type == it8771 || |
1916 | sio_data->type == it8772) |
1917 | sio_data->internal |= (1 << 1); |
1918 | |
1919 | /* |
1920 | * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7. |
1921 | * While VIN7 can be routed to the internal voltage divider, |
1922 | * VIN5 and VIN6 are not available if UART6 is enabled. |
1923 | * |
1924 | * Also, temp3 is not available if UART6 is enabled and TEMPIN3 |
1925 | * is the temperature source. Since we can not read the |
1926 | * temperature source here, skip_temp is preliminary. |
1927 | */ |
1928 | if (uart6) { |
1929 | sio_data->skip_in |= (1 << 5) | (1 << 6); |
1930 | sio_data->skip_temp |= (1 << 2); |
1931 | } |
1932 | |
1933 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
1934 | } |
1935 | if (sio_data->beep_pin) |
1936 | pr_info("Beeping is supported\n"); |
1937 | |
1938 | /* Disable specific features based on DMI strings */ |
1939 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); |
1940 | board_name = dmi_get_system_info(DMI_BOARD_NAME); |
1941 | if (board_vendor && board_name) { |
1942 | if (strcmp(board_vendor, "nVIDIA") == 0 |
1943 | && strcmp(board_name, "FN68PT") == 0) { |
1944 | /* |
1945 | * On the Shuttle SN68PT, FAN_CTL2 is apparently not |
1946 | * connected to a fan, but to something else. One user |
1947 | * has reported instant system power-off when changing |
1948 | * the PWM2 duty cycle, so we disable it. |
1949 | * I use the board name string as the trigger in case |
1950 | * the same board is ever used in other systems. |
1951 | */ |
1952 | pr_info("Disabling pwm2 due to hardware constraints\n"); |
1953 | sio_data->skip_pwm = (1 << 1); |
1954 | } |
1955 | } |
1956 | |
1957 | exit: |
1958 | superio_exit(); |
1959 | return err; |
1960 | } |
1961 | |
1962 | static void it87_remove_files(struct device *dev) |
1963 | { |
1964 | struct it87_data *data = platform_get_drvdata(pdev); |
1965 | struct it87_sio_data *sio_data = dev->platform_data; |
1966 | int i; |
1967 | |
1968 | sysfs_remove_group(&dev->kobj, &it87_group); |
1969 | for (i = 0; i < 9; i++) { |
1970 | if (sio_data->skip_in & (1 << i)) |
1971 | continue; |
1972 | sysfs_remove_group(&dev->kobj, &it87_group_in[i]); |
1973 | if (it87_attributes_in_beep[i]) |
1974 | sysfs_remove_file(&dev->kobj, |
1975 | it87_attributes_in_beep[i]); |
1976 | } |
1977 | for (i = 0; i < 3; i++) { |
1978 | if (!(data->has_temp & (1 << i))) |
1979 | continue; |
1980 | sysfs_remove_group(&dev->kobj, &it87_group_temp[i]); |
1981 | if (has_temp_offset(data)) |
1982 | sysfs_remove_file(&dev->kobj, |
1983 | it87_attributes_temp_offset[i]); |
1984 | if (sio_data->beep_pin) |
1985 | sysfs_remove_file(&dev->kobj, |
1986 | it87_attributes_temp_beep[i]); |
1987 | } |
1988 | for (i = 0; i < 5; i++) { |
1989 | if (!(data->has_fan & (1 << i))) |
1990 | continue; |
1991 | sysfs_remove_group(&dev->kobj, &it87_group_fan[i]); |
1992 | if (sio_data->beep_pin) |
1993 | sysfs_remove_file(&dev->kobj, |
1994 | it87_attributes_fan_beep[i]); |
1995 | if (i < 3 && !has_16bit_fans(data)) |
1996 | sysfs_remove_file(&dev->kobj, |
1997 | it87_attributes_fan_div[i]); |
1998 | } |
1999 | for (i = 0; i < 3; i++) { |
2000 | if (sio_data->skip_pwm & (1 << 0)) |
2001 | continue; |
2002 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); |
2003 | if (has_old_autopwm(data)) |
2004 | sysfs_remove_group(&dev->kobj, |
2005 | &it87_group_autopwm[i]); |
2006 | } |
2007 | if (!sio_data->skip_vid) |
2008 | sysfs_remove_group(&dev->kobj, &it87_group_vid); |
2009 | sysfs_remove_group(&dev->kobj, &it87_group_label); |
2010 | } |
2011 | |
2012 | static int it87_probe(struct platform_device *pdev) |
2013 | { |
2014 | struct it87_data *data; |
2015 | struct resource *res; |
2016 | struct device *dev = &pdev->dev; |
2017 | struct it87_sio_data *sio_data = dev->platform_data; |
2018 | int err = 0, i; |
2019 | int enable_pwm_interface; |
2020 | int fan_beep_need_rw; |
2021 | |
2022 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
2023 | if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT, |
2024 | DRVNAME)) { |
2025 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
2026 | (unsigned long)res->start, |
2027 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
2028 | return -EBUSY; |
2029 | } |
2030 | |
2031 | data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL); |
2032 | if (!data) |
2033 | return -ENOMEM; |
2034 | |
2035 | data->addr = res->start; |
2036 | data->type = sio_data->type; |
2037 | data->features = it87_devices[sio_data->type].features; |
2038 | data->peci_mask = it87_devices[sio_data->type].peci_mask; |
2039 | data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask; |
2040 | data->name = it87_devices[sio_data->type].name; |
2041 | /* |
2042 | * IT8705F Datasheet 0.4.1, 3h == Version G. |
2043 | * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
2044 | * These are the first revisions with 16-bit tachometer support. |
2045 | */ |
2046 | switch (data->type) { |
2047 | case it87: |
2048 | if (sio_data->revision >= 0x03) { |
2049 | data->features &= ~FEAT_OLD_AUTOPWM; |
2050 | data->features |= FEAT_16BIT_FANS; |
2051 | } |
2052 | break; |
2053 | case it8712: |
2054 | if (sio_data->revision >= 0x08) { |
2055 | data->features &= ~FEAT_OLD_AUTOPWM; |
2056 | data->features |= FEAT_16BIT_FANS; |
2057 | } |
2058 | break; |
2059 | default: |
2060 | break; |
2061 | } |
2062 | |
2063 | /* Now, we do the remaining detection. */ |
2064 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
2065 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) |
2066 | return -ENODEV; |
2067 | |
2068 | platform_set_drvdata(pdev, data); |
2069 | |
2070 | mutex_init(&data->update_lock); |
2071 | |
2072 | /* Check PWM configuration */ |
2073 | enable_pwm_interface = it87_check_pwm(dev); |
2074 | |
2075 | /* Starting with IT8721F, we handle scaling of internal voltages */ |
2076 | if (has_12mv_adc(data)) { |
2077 | if (sio_data->internal & (1 << 0)) |
2078 | data->in_scaled |= (1 << 3); /* in3 is AVCC */ |
2079 | if (sio_data->internal & (1 << 1)) |
2080 | data->in_scaled |= (1 << 7); /* in7 is VSB */ |
2081 | if (sio_data->internal & (1 << 2)) |
2082 | data->in_scaled |= (1 << 8); /* in8 is Vbat */ |
2083 | } else if (sio_data->type == it8782 || sio_data->type == it8783) { |
2084 | if (sio_data->internal & (1 << 0)) |
2085 | data->in_scaled |= (1 << 3); /* in3 is VCC5V */ |
2086 | if (sio_data->internal & (1 << 1)) |
2087 | data->in_scaled |= (1 << 7); /* in7 is VCCH5V */ |
2088 | } |
2089 | |
2090 | data->has_temp = 0x07; |
2091 | if (sio_data->skip_temp & (1 << 2)) { |
2092 | if (sio_data->type == it8782 |
2093 | && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80)) |
2094 | data->has_temp &= ~(1 << 2); |
2095 | } |
2096 | |
2097 | /* Initialize the IT87 chip */ |
2098 | it87_init_device(pdev); |
2099 | |
2100 | /* Register sysfs hooks */ |
2101 | err = sysfs_create_group(&dev->kobj, &it87_group); |
2102 | if (err) |
2103 | return err; |
2104 | |
2105 | for (i = 0; i < 9; i++) { |
2106 | if (sio_data->skip_in & (1 << i)) |
2107 | continue; |
2108 | err = sysfs_create_group(&dev->kobj, &it87_group_in[i]); |
2109 | if (err) |
2110 | goto error; |
2111 | if (sio_data->beep_pin && it87_attributes_in_beep[i]) { |
2112 | err = sysfs_create_file(&dev->kobj, |
2113 | it87_attributes_in_beep[i]); |
2114 | if (err) |
2115 | goto error; |
2116 | } |
2117 | } |
2118 | |
2119 | for (i = 0; i < 3; i++) { |
2120 | if (!(data->has_temp & (1 << i))) |
2121 | continue; |
2122 | err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]); |
2123 | if (err) |
2124 | goto error; |
2125 | if (has_temp_offset(data)) { |
2126 | err = sysfs_create_file(&dev->kobj, |
2127 | it87_attributes_temp_offset[i]); |
2128 | if (err) |
2129 | goto error; |
2130 | } |
2131 | if (sio_data->beep_pin) { |
2132 | err = sysfs_create_file(&dev->kobj, |
2133 | it87_attributes_temp_beep[i]); |
2134 | if (err) |
2135 | goto error; |
2136 | } |
2137 | } |
2138 | |
2139 | /* Do not create fan files for disabled fans */ |
2140 | fan_beep_need_rw = 1; |
2141 | for (i = 0; i < 5; i++) { |
2142 | if (!(data->has_fan & (1 << i))) |
2143 | continue; |
2144 | err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]); |
2145 | if (err) |
2146 | goto error; |
2147 | |
2148 | if (i < 3 && !has_16bit_fans(data)) { |
2149 | err = sysfs_create_file(&dev->kobj, |
2150 | it87_attributes_fan_div[i]); |
2151 | if (err) |
2152 | goto error; |
2153 | } |
2154 | |
2155 | if (sio_data->beep_pin) { |
2156 | err = sysfs_create_file(&dev->kobj, |
2157 | it87_attributes_fan_beep[i]); |
2158 | if (err) |
2159 | goto error; |
2160 | if (!fan_beep_need_rw) |
2161 | continue; |
2162 | |
2163 | /* |
2164 | * As we have a single beep enable bit for all fans, |
2165 | * only the first enabled fan has a writable attribute |
2166 | * for it. |
2167 | */ |
2168 | if (sysfs_chmod_file(&dev->kobj, |
2169 | it87_attributes_fan_beep[i], |
2170 | S_IRUGO | S_IWUSR)) |
2171 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", |
2172 | i + 1); |
2173 | fan_beep_need_rw = 0; |
2174 | } |
2175 | } |
2176 | |
2177 | if (enable_pwm_interface) { |
2178 | for (i = 0; i < 3; i++) { |
2179 | if (sio_data->skip_pwm & (1 << i)) |
2180 | continue; |
2181 | err = sysfs_create_group(&dev->kobj, |
2182 | &it87_group_pwm[i]); |
2183 | if (err) |
2184 | goto error; |
2185 | |
2186 | if (!has_old_autopwm(data)) |
2187 | continue; |
2188 | err = sysfs_create_group(&dev->kobj, |
2189 | &it87_group_autopwm[i]); |
2190 | if (err) |
2191 | goto error; |
2192 | } |
2193 | } |
2194 | |
2195 | if (!sio_data->skip_vid) { |
2196 | data->vrm = vid_which_vrm(); |
2197 | /* VID reading from Super-I/O config space if available */ |
2198 | data->vid = sio_data->vid_value; |
2199 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
2200 | if (err) |
2201 | goto error; |
2202 | } |
2203 | |
2204 | /* Export labels for internal sensors */ |
2205 | for (i = 0; i < 3; i++) { |
2206 | if (!(sio_data->internal & (1 << i))) |
2207 | continue; |
2208 | err = sysfs_create_file(&dev->kobj, |
2209 | it87_attributes_label[i]); |
2210 | if (err) |
2211 | goto error; |
2212 | } |
2213 | |
2214 | data->hwmon_dev = hwmon_device_register(dev); |
2215 | if (IS_ERR(data->hwmon_dev)) { |
2216 | err = PTR_ERR(data->hwmon_dev); |
2217 | goto error; |
2218 | } |
2219 | |
2220 | return 0; |
2221 | |
2222 | error: |
2223 | it87_remove_files(dev); |
2224 | return err; |
2225 | } |
2226 | |
2227 | static int it87_remove(struct platform_device *pdev) |
2228 | { |
2229 | struct it87_data *data = platform_get_drvdata(pdev); |
2230 | |
2231 | hwmon_device_unregister(data->hwmon_dev); |
2232 | it87_remove_files(&pdev->dev); |
2233 | |
2234 | return 0; |
2235 | } |
2236 | |
2237 | /* |
2238 | * Must be called with data->update_lock held, except during initialization. |
2239 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
2240 | * would slow down the IT87 access and should not be necessary. |
2241 | */ |
2242 | static int it87_read_value(struct it87_data *data, u8 reg) |
2243 | { |
2244 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2245 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); |
2246 | } |
2247 | |
2248 | /* |
2249 | * Must be called with data->update_lock held, except during initialization. |
2250 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
2251 | * would slow down the IT87 access and should not be necessary. |
2252 | */ |
2253 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
2254 | { |
2255 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2256 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); |
2257 | } |
2258 | |
2259 | /* Return 1 if and only if the PWM interface is safe to use */ |
2260 | static int it87_check_pwm(struct device *dev) |
2261 | { |
2262 | struct it87_data *data = dev_get_drvdata(dev); |
2263 | /* |
2264 | * Some BIOSes fail to correctly configure the IT87 fans. All fans off |
2265 | * and polarity set to active low is sign that this is the case so we |
2266 | * disable pwm control to protect the user. |
2267 | */ |
2268 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
2269 | if ((tmp & 0x87) == 0) { |
2270 | if (fix_pwm_polarity) { |
2271 | /* |
2272 | * The user asks us to attempt a chip reconfiguration. |
2273 | * This means switching to active high polarity and |
2274 | * inverting all fan speed values. |
2275 | */ |
2276 | int i; |
2277 | u8 pwm[3]; |
2278 | |
2279 | for (i = 0; i < 3; i++) |
2280 | pwm[i] = it87_read_value(data, |
2281 | IT87_REG_PWM(i)); |
2282 | |
2283 | /* |
2284 | * If any fan is in automatic pwm mode, the polarity |
2285 | * might be correct, as suspicious as it seems, so we |
2286 | * better don't change anything (but still disable the |
2287 | * PWM interface). |
2288 | */ |
2289 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { |
2290 | dev_info(dev, |
2291 | "Reconfiguring PWM to active high polarity\n"); |
2292 | it87_write_value(data, IT87_REG_FAN_CTL, |
2293 | tmp | 0x87); |
2294 | for (i = 0; i < 3; i++) |
2295 | it87_write_value(data, |
2296 | IT87_REG_PWM(i), |
2297 | 0x7f & ~pwm[i]); |
2298 | return 1; |
2299 | } |
2300 | |
2301 | dev_info(dev, |
2302 | "PWM configuration is too broken to be fixed\n"); |
2303 | } |
2304 | |
2305 | dev_info(dev, |
2306 | "Detected broken BIOS defaults, disabling PWM interface\n"); |
2307 | return 0; |
2308 | } else if (fix_pwm_polarity) { |
2309 | dev_info(dev, |
2310 | "PWM configuration looks sane, won't touch\n"); |
2311 | } |
2312 | |
2313 | return 1; |
2314 | } |
2315 | |
2316 | /* Called when we have found a new IT87. */ |
2317 | static void it87_init_device(struct platform_device *pdev) |
2318 | { |
2319 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
2320 | struct it87_data *data = platform_get_drvdata(pdev); |
2321 | int tmp, i; |
2322 | u8 mask; |
2323 | |
2324 | /* |
2325 | * For each PWM channel: |
2326 | * - If it is in automatic mode, setting to manual mode should set |
2327 | * the fan to full speed by default. |
2328 | * - If it is in manual mode, we need a mapping to temperature |
2329 | * channels to use when later setting to automatic mode later. |
2330 | * Use a 1:1 mapping by default (we are clueless.) |
2331 | * In both cases, the value can (and should) be changed by the user |
2332 | * prior to switching to a different mode. |
2333 | * Note that this is no longer needed for the IT8721F and later, as |
2334 | * these have separate registers for the temperature mapping and the |
2335 | * manual duty cycle. |
2336 | */ |
2337 | for (i = 0; i < 3; i++) { |
2338 | data->pwm_temp_map[i] = i; |
2339 | data->pwm_duty[i] = 0x7f; /* Full speed */ |
2340 | data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
2341 | } |
2342 | |
2343 | /* |
2344 | * Some chips seem to have default value 0xff for all limit |
2345 | * registers. For low voltage limits it makes no sense and triggers |
2346 | * alarms, so change to 0 instead. For high temperature limits, it |
2347 | * means -1 degree C, which surprisingly doesn't trigger an alarm, |
2348 | * but is still confusing, so change to 127 degrees C. |
2349 | */ |
2350 | for (i = 0; i < 8; i++) { |
2351 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
2352 | if (tmp == 0xff) |
2353 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
2354 | } |
2355 | for (i = 0; i < 3; i++) { |
2356 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
2357 | if (tmp == 0xff) |
2358 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
2359 | } |
2360 | |
2361 | /* |
2362 | * Temperature channels are not forcibly enabled, as they can be |
2363 | * set to two different sensor types and we can't guess which one |
2364 | * is correct for a given system. These channels can be enabled at |
2365 | * run-time through the temp{1-3}_type sysfs accessors if needed. |
2366 | */ |
2367 | |
2368 | /* Check if voltage monitors are reset manually or by some reason */ |
2369 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
2370 | if ((tmp & 0xff) == 0) { |
2371 | /* Enable all voltage monitors */ |
2372 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
2373 | } |
2374 | |
2375 | /* Check if tachometers are reset manually or by some reason */ |
2376 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
2377 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
2378 | if ((data->fan_main_ctrl & mask) == 0) { |
2379 | /* Enable all fan tachometers */ |
2380 | data->fan_main_ctrl |= mask; |
2381 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
2382 | data->fan_main_ctrl); |
2383 | } |
2384 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
2385 | |
2386 | /* Set tachometers to 16-bit mode if needed */ |
2387 | if (has_16bit_fans(data)) { |
2388 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
2389 | if (~tmp & 0x07 & data->has_fan) { |
2390 | dev_dbg(&pdev->dev, |
2391 | "Setting fan1-3 to 16-bit mode\n"); |
2392 | it87_write_value(data, IT87_REG_FAN_16BIT, |
2393 | tmp | 0x07); |
2394 | } |
2395 | /* IT8705F, IT8782F, and IT8783E/F only support three fans. */ |
2396 | if (data->type != it87 && data->type != it8782 && |
2397 | data->type != it8783) { |
2398 | if (tmp & (1 << 4)) |
2399 | data->has_fan |= (1 << 3); /* fan4 enabled */ |
2400 | if (tmp & (1 << 5)) |
2401 | data->has_fan |= (1 << 4); /* fan5 enabled */ |
2402 | } |
2403 | } |
2404 | |
2405 | /* Fan input pins may be used for alternative functions */ |
2406 | data->has_fan &= ~sio_data->skip_fan; |
2407 | |
2408 | /* Start monitoring */ |
2409 | it87_write_value(data, IT87_REG_CONFIG, |
2410 | (it87_read_value(data, IT87_REG_CONFIG) & 0x3e) |
2411 | | (update_vbat ? 0x41 : 0x01)); |
2412 | } |
2413 | |
2414 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
2415 | { |
2416 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); |
2417 | if (has_newer_autopwm(data)) { |
2418 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
2419 | data->pwm_duty[nr] = it87_read_value(data, |
2420 | IT87_REG_PWM_DUTY(nr)); |
2421 | } else { |
2422 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
2423 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
2424 | else /* Manual mode */ |
2425 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; |
2426 | } |
2427 | |
2428 | if (has_old_autopwm(data)) { |
2429 | int i; |
2430 | |
2431 | for (i = 0; i < 5 ; i++) |
2432 | data->auto_temp[nr][i] = it87_read_value(data, |
2433 | IT87_REG_AUTO_TEMP(nr, i)); |
2434 | for (i = 0; i < 3 ; i++) |
2435 | data->auto_pwm[nr][i] = it87_read_value(data, |
2436 | IT87_REG_AUTO_PWM(nr, i)); |
2437 | } |
2438 | } |
2439 | |
2440 | static struct it87_data *it87_update_device(struct device *dev) |
2441 | { |
2442 | struct it87_data *data = dev_get_drvdata(dev); |
2443 | int i; |
2444 | |
2445 | mutex_lock(&data->update_lock); |
2446 | |
2447 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) |
2448 | || !data->valid) { |
2449 | if (update_vbat) { |
2450 | /* |
2451 | * Cleared after each update, so reenable. Value |
2452 | * returned by this read will be previous value |
2453 | */ |
2454 | it87_write_value(data, IT87_REG_CONFIG, |
2455 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
2456 | } |
2457 | for (i = 0; i <= 7; i++) { |
2458 | data->in[i][0] = |
2459 | it87_read_value(data, IT87_REG_VIN(i)); |
2460 | data->in[i][1] = |
2461 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
2462 | data->in[i][2] = |
2463 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
2464 | } |
2465 | /* in8 (battery) has no limit registers */ |
2466 | data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8)); |
2467 | |
2468 | for (i = 0; i < 5; i++) { |
2469 | /* Skip disabled fans */ |
2470 | if (!(data->has_fan & (1 << i))) |
2471 | continue; |
2472 | |
2473 | data->fan[i][1] = |
2474 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
2475 | data->fan[i][0] = it87_read_value(data, |
2476 | IT87_REG_FAN[i]); |
2477 | /* Add high byte if in 16-bit mode */ |
2478 | if (has_16bit_fans(data)) { |
2479 | data->fan[i][0] |= it87_read_value(data, |
2480 | IT87_REG_FANX[i]) << 8; |
2481 | data->fan[i][1] |= it87_read_value(data, |
2482 | IT87_REG_FANX_MIN[i]) << 8; |
2483 | } |
2484 | } |
2485 | for (i = 0; i < 3; i++) { |
2486 | if (!(data->has_temp & (1 << i))) |
2487 | continue; |
2488 | data->temp[i][0] = |
2489 | it87_read_value(data, IT87_REG_TEMP(i)); |
2490 | data->temp[i][1] = |
2491 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
2492 | data->temp[i][2] = |
2493 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
2494 | if (has_temp_offset(data)) |
2495 | data->temp[i][3] = |
2496 | it87_read_value(data, |
2497 | IT87_REG_TEMP_OFFSET[i]); |
2498 | } |
2499 | |
2500 | /* Newer chips don't have clock dividers */ |
2501 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
2502 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
2503 | data->fan_div[0] = i & 0x07; |
2504 | data->fan_div[1] = (i >> 3) & 0x07; |
2505 | data->fan_div[2] = (i & 0x40) ? 3 : 1; |
2506 | } |
2507 | |
2508 | data->alarms = |
2509 | it87_read_value(data, IT87_REG_ALARM1) | |
2510 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | |
2511 | (it87_read_value(data, IT87_REG_ALARM3) << 16); |
2512 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
2513 | |
2514 | data->fan_main_ctrl = it87_read_value(data, |
2515 | IT87_REG_FAN_MAIN_CTRL); |
2516 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); |
2517 | for (i = 0; i < 3; i++) |
2518 | it87_update_pwm_ctrl(data, i); |
2519 | |
2520 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
2521 | data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); |
2522 | /* |
2523 | * The IT8705F does not have VID capability. |
2524 | * The IT8718F and later don't use IT87_REG_VID for the |
2525 | * same purpose. |
2526 | */ |
2527 | if (data->type == it8712 || data->type == it8716) { |
2528 | data->vid = it87_read_value(data, IT87_REG_VID); |
2529 | /* |
2530 | * The older IT8712F revisions had only 5 VID pins, |
2531 | * but we assume it is always safe to read 6 bits. |
2532 | */ |
2533 | data->vid &= 0x3f; |
2534 | } |
2535 | data->last_updated = jiffies; |
2536 | data->valid = 1; |
2537 | } |
2538 | |
2539 | mutex_unlock(&data->update_lock); |
2540 | |
2541 | return data; |
2542 | } |
2543 | |
2544 | static int __init it87_device_add(unsigned short address, |
2545 | const struct it87_sio_data *sio_data) |
2546 | { |
2547 | struct resource res = { |
2548 | .start = address + IT87_EC_OFFSET, |
2549 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, |
2550 | .name = DRVNAME, |
2551 | .flags = IORESOURCE_IO, |
2552 | }; |
2553 | int err; |
2554 | |
2555 | err = acpi_check_resource_conflict(&res); |
2556 | if (err) |
2557 | goto exit; |
2558 | |
2559 | pdev = platform_device_alloc(DRVNAME, address); |
2560 | if (!pdev) { |
2561 | err = -ENOMEM; |
2562 | pr_err("Device allocation failed\n"); |
2563 | goto exit; |
2564 | } |
2565 | |
2566 | err = platform_device_add_resources(pdev, &res, 1); |
2567 | if (err) { |
2568 | pr_err("Device resource addition failed (%d)\n", err); |
2569 | goto exit_device_put; |
2570 | } |
2571 | |
2572 | err = platform_device_add_data(pdev, sio_data, |
2573 | sizeof(struct it87_sio_data)); |
2574 | if (err) { |
2575 | pr_err("Platform data allocation failed\n"); |
2576 | goto exit_device_put; |
2577 | } |
2578 | |
2579 | err = platform_device_add(pdev); |
2580 | if (err) { |
2581 | pr_err("Device addition failed (%d)\n", err); |
2582 | goto exit_device_put; |
2583 | } |
2584 | |
2585 | return 0; |
2586 | |
2587 | exit_device_put: |
2588 | platform_device_put(pdev); |
2589 | exit: |
2590 | return err; |
2591 | } |
2592 | |
2593 | static int __init sm_it87_init(void) |
2594 | { |
2595 | int err; |
2596 | unsigned short isa_address = 0; |
2597 | struct it87_sio_data sio_data; |
2598 | |
2599 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
2600 | err = it87_find(&isa_address, &sio_data); |
2601 | if (err) |
2602 | return err; |
2603 | err = platform_driver_register(&it87_driver); |
2604 | if (err) |
2605 | return err; |
2606 | |
2607 | err = it87_device_add(isa_address, &sio_data); |
2608 | if (err) { |
2609 | platform_driver_unregister(&it87_driver); |
2610 | return err; |
2611 | } |
2612 | |
2613 | return 0; |
2614 | } |
2615 | |
2616 | static void __exit sm_it87_exit(void) |
2617 | { |
2618 | platform_device_unregister(pdev); |
2619 | platform_driver_unregister(&it87_driver); |
2620 | } |
2621 | |
2622 | |
2623 | MODULE_AUTHOR("Chris Gauthron, Jean Delvare <khali@linux-fr.org>"); |
2624 | MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); |
2625 | module_param(update_vbat, bool, 0); |
2626 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); |
2627 | module_param(fix_pwm_polarity, bool, 0); |
2628 | MODULE_PARM_DESC(fix_pwm_polarity, |
2629 | "Force PWM polarity to active high (DANGEROUS)"); |
2630 | MODULE_LICENSE("GPL"); |
2631 | |
2632 | module_init(sm_it87_init); |
2633 | module_exit(sm_it87_exit); |
2634 |
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