Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
5f2dc798 JD |
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 | |
44c1bcd4 | 18 | * IT8721F Super I/O chip w/LPC interface |
5f2dc798 | 19 | * IT8726F Super I/O chip w/LPC interface |
16b5dda2 | 20 | * IT8728F Super I/O chip w/LPC interface |
44c1bcd4 | 21 | * IT8758E Super I/O chip w/LPC interface |
0531d98b GR |
22 | * IT8782F Super I/O chip w/LPC interface |
23 | * IT8783E/F Super I/O chip w/LPC interface | |
5f2dc798 JD |
24 | * Sis950 A clone of the IT8705F |
25 | * | |
26 | * Copyright (C) 2001 Chris Gauthron | |
27 | * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> | |
28 | * | |
29 | * This program is free software; you can redistribute it and/or modify | |
30 | * it under the terms of the GNU General Public License as published by | |
31 | * the Free Software Foundation; either version 2 of the License, or | |
32 | * (at your option) any later version. | |
33 | * | |
34 | * This program is distributed in the hope that it will be useful, | |
35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
37 | * GNU General Public License for more details. | |
38 | * | |
39 | * You should have received a copy of the GNU General Public License | |
40 | * along with this program; if not, write to the Free Software | |
41 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
42 | */ | |
1da177e4 | 43 | |
a8ca1037 JP |
44 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
45 | ||
1da177e4 LT |
46 | #include <linux/module.h> |
47 | #include <linux/init.h> | |
48 | #include <linux/slab.h> | |
49 | #include <linux/jiffies.h> | |
b74f3fdd | 50 | #include <linux/platform_device.h> |
943b0830 | 51 | #include <linux/hwmon.h> |
303760b4 JD |
52 | #include <linux/hwmon-sysfs.h> |
53 | #include <linux/hwmon-vid.h> | |
943b0830 | 54 | #include <linux/err.h> |
9a61bf63 | 55 | #include <linux/mutex.h> |
87808be4 | 56 | #include <linux/sysfs.h> |
98dd22c3 JD |
57 | #include <linux/string.h> |
58 | #include <linux/dmi.h> | |
b9acb64a | 59 | #include <linux/acpi.h> |
6055fae8 | 60 | #include <linux/io.h> |
1da177e4 | 61 | |
b74f3fdd | 62 | #define DRVNAME "it87" |
1da177e4 | 63 | |
0531d98b GR |
64 | enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8782, |
65 | it8783 }; | |
1da177e4 | 66 | |
67b671bc JD |
67 | static unsigned short force_id; |
68 | module_param(force_id, ushort, 0); | |
69 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
70 | ||
b74f3fdd | 71 | static struct platform_device *pdev; |
72 | ||
1da177e4 LT |
73 | #define REG 0x2e /* The register to read/write */ |
74 | #define DEV 0x07 /* Register: Logical device select */ | |
75 | #define VAL 0x2f /* The value to read/write */ | |
76 | #define PME 0x04 /* The device with the fan registers in it */ | |
b4da93e4 JMS |
77 | |
78 | /* The device with the IT8718F/IT8720F VID value in it */ | |
79 | #define GPIO 0x07 | |
80 | ||
1da177e4 LT |
81 | #define DEVID 0x20 /* Register: Device ID */ |
82 | #define DEVREV 0x22 /* Register: Device Revision */ | |
83 | ||
5b0380c9 | 84 | static inline int superio_inb(int reg) |
1da177e4 LT |
85 | { |
86 | outb(reg, REG); | |
87 | return inb(VAL); | |
88 | } | |
89 | ||
5b0380c9 | 90 | static inline void superio_outb(int reg, int val) |
436cad2a JD |
91 | { |
92 | outb(reg, REG); | |
93 | outb(val, VAL); | |
94 | } | |
95 | ||
1da177e4 LT |
96 | static int superio_inw(int reg) |
97 | { | |
98 | int val; | |
99 | outb(reg++, REG); | |
100 | val = inb(VAL) << 8; | |
101 | outb(reg, REG); | |
102 | val |= inb(VAL); | |
103 | return val; | |
104 | } | |
105 | ||
5b0380c9 | 106 | static inline void superio_select(int ldn) |
1da177e4 LT |
107 | { |
108 | outb(DEV, REG); | |
87673dd7 | 109 | outb(ldn, VAL); |
1da177e4 LT |
110 | } |
111 | ||
5b0380c9 | 112 | static inline int superio_enter(void) |
1da177e4 | 113 | { |
5b0380c9 NG |
114 | /* |
115 | * Try to reserve REG and REG + 1 for exclusive access. | |
116 | */ | |
117 | if (!request_muxed_region(REG, 2, DRVNAME)) | |
118 | return -EBUSY; | |
119 | ||
1da177e4 LT |
120 | outb(0x87, REG); |
121 | outb(0x01, REG); | |
122 | outb(0x55, REG); | |
123 | outb(0x55, REG); | |
5b0380c9 | 124 | return 0; |
1da177e4 LT |
125 | } |
126 | ||
5b0380c9 | 127 | static inline void superio_exit(void) |
1da177e4 LT |
128 | { |
129 | outb(0x02, REG); | |
130 | outb(0x02, VAL); | |
5b0380c9 | 131 | release_region(REG, 2); |
1da177e4 LT |
132 | } |
133 | ||
87673dd7 | 134 | /* Logical device 4 registers */ |
1da177e4 LT |
135 | #define IT8712F_DEVID 0x8712 |
136 | #define IT8705F_DEVID 0x8705 | |
17d648bf | 137 | #define IT8716F_DEVID 0x8716 |
87673dd7 | 138 | #define IT8718F_DEVID 0x8718 |
b4da93e4 | 139 | #define IT8720F_DEVID 0x8720 |
44c1bcd4 | 140 | #define IT8721F_DEVID 0x8721 |
08a8f6e9 | 141 | #define IT8726F_DEVID 0x8726 |
16b5dda2 | 142 | #define IT8728F_DEVID 0x8728 |
0531d98b GR |
143 | #define IT8782F_DEVID 0x8782 |
144 | #define IT8783E_DEVID 0x8783 | |
1da177e4 LT |
145 | #define IT87_ACT_REG 0x30 |
146 | #define IT87_BASE_REG 0x60 | |
147 | ||
87673dd7 | 148 | /* Logical device 7 registers (IT8712F and later) */ |
0531d98b | 149 | #define IT87_SIO_GPIO1_REG 0x25 |
895ff267 | 150 | #define IT87_SIO_GPIO3_REG 0x27 |
591ec650 | 151 | #define IT87_SIO_GPIO5_REG 0x29 |
0531d98b | 152 | #define IT87_SIO_PINX1_REG 0x2a /* Pin selection */ |
87673dd7 | 153 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
0531d98b | 154 | #define IT87_SIO_SPI_REG 0xef /* SPI function pin select */ |
87673dd7 | 155 | #define IT87_SIO_VID_REG 0xfc /* VID value */ |
d9b327c3 | 156 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
87673dd7 | 157 | |
1da177e4 | 158 | /* Update battery voltage after every reading if true */ |
90ab5ee9 | 159 | static bool update_vbat; |
1da177e4 LT |
160 | |
161 | /* Not all BIOSes properly configure the PWM registers */ | |
90ab5ee9 | 162 | static bool fix_pwm_polarity; |
1da177e4 | 163 | |
1da177e4 LT |
164 | /* Many IT87 constants specified below */ |
165 | ||
166 | /* Length of ISA address segment */ | |
167 | #define IT87_EXTENT 8 | |
168 | ||
87b4b663 BH |
169 | /* Length of ISA address segment for Environmental Controller */ |
170 | #define IT87_EC_EXTENT 2 | |
171 | ||
172 | /* Offset of EC registers from ISA base address */ | |
173 | #define IT87_EC_OFFSET 5 | |
174 | ||
175 | /* Where are the ISA address/data registers relative to the EC base address */ | |
176 | #define IT87_ADDR_REG_OFFSET 0 | |
177 | #define IT87_DATA_REG_OFFSET 1 | |
1da177e4 LT |
178 | |
179 | /*----- The IT87 registers -----*/ | |
180 | ||
181 | #define IT87_REG_CONFIG 0x00 | |
182 | ||
183 | #define IT87_REG_ALARM1 0x01 | |
184 | #define IT87_REG_ALARM2 0x02 | |
185 | #define IT87_REG_ALARM3 0x03 | |
186 | ||
4a0d71cf GR |
187 | /* |
188 | * The IT8718F and IT8720F have the VID value in a different register, in | |
189 | * Super-I/O configuration space. | |
190 | */ | |
1da177e4 | 191 | #define IT87_REG_VID 0x0a |
4a0d71cf GR |
192 | /* |
193 | * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b | |
194 | * for fan divisors. Later IT8712F revisions must use 16-bit tachometer | |
195 | * mode. | |
196 | */ | |
1da177e4 | 197 | #define IT87_REG_FAN_DIV 0x0b |
17d648bf | 198 | #define IT87_REG_FAN_16BIT 0x0c |
1da177e4 LT |
199 | |
200 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ | |
201 | ||
c7f1f716 JD |
202 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
203 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; | |
204 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; | |
205 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; | |
1da177e4 LT |
206 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
207 | #define IT87_REG_FAN_CTL 0x14 | |
208 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
6229cdb2 | 209 | #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
1da177e4 LT |
210 | |
211 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
212 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
213 | ||
214 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
215 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
216 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
217 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
218 | ||
1da177e4 LT |
219 | #define IT87_REG_VIN_ENABLE 0x50 |
220 | #define IT87_REG_TEMP_ENABLE 0x51 | |
d9b327c3 | 221 | #define IT87_REG_BEEP_ENABLE 0x5c |
1da177e4 LT |
222 | |
223 | #define IT87_REG_CHIPID 0x58 | |
224 | ||
4f3f51bc JD |
225 | #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
226 | #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) | |
227 | ||
1da177e4 | 228 | |
b74f3fdd | 229 | struct it87_sio_data { |
230 | enum chips type; | |
231 | /* Values read from Super-I/O config space */ | |
0475169c | 232 | u8 revision; |
b74f3fdd | 233 | u8 vid_value; |
d9b327c3 | 234 | u8 beep_pin; |
738e5e05 | 235 | u8 internal; /* Internal sensors can be labeled */ |
591ec650 | 236 | /* Features skipped based on config or DMI */ |
895ff267 | 237 | u8 skip_vid; |
591ec650 | 238 | u8 skip_fan; |
98dd22c3 | 239 | u8 skip_pwm; |
b74f3fdd | 240 | }; |
241 | ||
4a0d71cf GR |
242 | /* |
243 | * For each registered chip, we need to keep some data in memory. | |
244 | * The structure is dynamically allocated. | |
245 | */ | |
1da177e4 | 246 | struct it87_data { |
1beeffe4 | 247 | struct device *hwmon_dev; |
1da177e4 | 248 | enum chips type; |
0475169c | 249 | u8 revision; |
1da177e4 | 250 | |
b74f3fdd | 251 | unsigned short addr; |
252 | const char *name; | |
9a61bf63 | 253 | struct mutex update_lock; |
1da177e4 LT |
254 | char valid; /* !=0 if following fields are valid */ |
255 | unsigned long last_updated; /* In jiffies */ | |
256 | ||
44c1bcd4 | 257 | u16 in_scaled; /* Internal voltage sensors are scaled */ |
1da177e4 | 258 | u8 in[9]; /* Register value */ |
3543a53f JD |
259 | u8 in_max[8]; /* Register value */ |
260 | u8 in_min[8]; /* Register value */ | |
9060f8bd | 261 | u8 has_fan; /* Bitfield, fans enabled */ |
c7f1f716 JD |
262 | u16 fan[5]; /* Register values, possibly combined */ |
263 | u16 fan_min[5]; /* Register values, possibly combined */ | |
e267d250 JD |
264 | s8 temp[3]; /* Register value */ |
265 | s8 temp_high[3]; /* Register value */ | |
266 | s8 temp_low[3]; /* Register value */ | |
1da177e4 LT |
267 | u8 sensor; /* Register value */ |
268 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
269 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 270 | u8 vrm; |
1da177e4 | 271 | u32 alarms; /* Register encoding, combined */ |
d9b327c3 | 272 | u8 beeps; /* Register encoding */ |
1da177e4 | 273 | u8 fan_main_ctrl; /* Register value */ |
f8d0c19a | 274 | u8 fan_ctl; /* Register value */ |
b99883dc | 275 | |
4a0d71cf GR |
276 | /* |
277 | * The following 3 arrays correspond to the same registers up to | |
6229cdb2 JD |
278 | * the IT8720F. The meaning of bits 6-0 depends on the value of bit |
279 | * 7, and we want to preserve settings on mode changes, so we have | |
280 | * to track all values separately. | |
281 | * Starting with the IT8721F, the manual PWM duty cycles are stored | |
282 | * in separate registers (8-bit values), so the separate tracking | |
283 | * is no longer needed, but it is still done to keep the driver | |
4a0d71cf GR |
284 | * simple. |
285 | */ | |
b99883dc | 286 | u8 pwm_ctrl[3]; /* Register value */ |
6229cdb2 | 287 | u8 pwm_duty[3]; /* Manual PWM value set by user */ |
b99883dc | 288 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
4f3f51bc JD |
289 | |
290 | /* Automatic fan speed control registers */ | |
291 | u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ | |
292 | s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ | |
1da177e4 | 293 | }; |
0df6454d | 294 | |
16b5dda2 JD |
295 | static inline int has_12mv_adc(const struct it87_data *data) |
296 | { | |
297 | /* | |
298 | * IT8721F and later have a 12 mV ADC, also with internal scaling | |
299 | * on selected inputs. | |
300 | */ | |
301 | return data->type == it8721 | |
302 | || data->type == it8728; | |
303 | } | |
304 | ||
305 | static inline int has_newer_autopwm(const struct it87_data *data) | |
306 | { | |
307 | /* | |
308 | * IT8721F and later have separate registers for the temperature | |
309 | * mapping and the manual duty cycle. | |
310 | */ | |
311 | return data->type == it8721 | |
312 | || data->type == it8728; | |
313 | } | |
314 | ||
0531d98b | 315 | static int adc_lsb(const struct it87_data *data, int nr) |
44c1bcd4 | 316 | { |
0531d98b GR |
317 | int lsb = has_12mv_adc(data) ? 12 : 16; |
318 | if (data->in_scaled & (1 << nr)) | |
319 | lsb <<= 1; | |
320 | return lsb; | |
321 | } | |
44c1bcd4 | 322 | |
0531d98b GR |
323 | static u8 in_to_reg(const struct it87_data *data, int nr, long val) |
324 | { | |
325 | val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr)); | |
44c1bcd4 JD |
326 | return SENSORS_LIMIT(val, 0, 255); |
327 | } | |
328 | ||
329 | static int in_from_reg(const struct it87_data *data, int nr, int val) | |
330 | { | |
0531d98b | 331 | return val * adc_lsb(data, nr); |
44c1bcd4 | 332 | } |
0df6454d JD |
333 | |
334 | static inline u8 FAN_TO_REG(long rpm, int div) | |
335 | { | |
336 | if (rpm == 0) | |
337 | return 255; | |
338 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
339 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
340 | 254); | |
341 | } | |
342 | ||
343 | static inline u16 FAN16_TO_REG(long rpm) | |
344 | { | |
345 | if (rpm == 0) | |
346 | return 0xffff; | |
347 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
348 | } | |
349 | ||
350 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ | |
351 | 1350000 / ((val) * (div))) | |
352 | /* The divider is fixed to 2 in 16-bit mode */ | |
353 | #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ | |
354 | 1350000 / ((val) * 2)) | |
355 | ||
356 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \ | |
357 | ((val) + 500) / 1000), -128, 127)) | |
358 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
359 | ||
44c1bcd4 JD |
360 | static u8 pwm_to_reg(const struct it87_data *data, long val) |
361 | { | |
16b5dda2 | 362 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
363 | return val; |
364 | else | |
365 | return val >> 1; | |
366 | } | |
367 | ||
368 | static int pwm_from_reg(const struct it87_data *data, u8 reg) | |
369 | { | |
16b5dda2 | 370 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
371 | return reg; |
372 | else | |
373 | return (reg & 0x7f) << 1; | |
374 | } | |
375 | ||
0df6454d JD |
376 | |
377 | static int DIV_TO_REG(int val) | |
378 | { | |
379 | int answer = 0; | |
380 | while (answer < 7 && (val >>= 1)) | |
381 | answer++; | |
382 | return answer; | |
383 | } | |
384 | #define DIV_FROM_REG(val) (1 << (val)) | |
385 | ||
386 | static const unsigned int pwm_freq[8] = { | |
387 | 48000000 / 128, | |
388 | 24000000 / 128, | |
389 | 12000000 / 128, | |
390 | 8000000 / 128, | |
391 | 6000000 / 128, | |
392 | 3000000 / 128, | |
393 | 1500000 / 128, | |
394 | 750000 / 128, | |
395 | }; | |
1da177e4 | 396 | |
0475169c AP |
397 | static inline int has_16bit_fans(const struct it87_data *data) |
398 | { | |
4a0d71cf GR |
399 | /* |
400 | * IT8705F Datasheet 0.4.1, 3h == Version G. | |
401 | * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. | |
402 | * These are the first revisions with 16-bit tachometer support. | |
403 | */ | |
816d8c6a | 404 | return (data->type == it87 && data->revision >= 0x03) |
859b9ef3 | 405 | || (data->type == it8712 && data->revision >= 0x08) |
0475169c | 406 | || data->type == it8716 |
b4da93e4 | 407 | || data->type == it8718 |
44c1bcd4 | 408 | || data->type == it8720 |
16b5dda2 | 409 | || data->type == it8721 |
0531d98b GR |
410 | || data->type == it8728 |
411 | || data->type == it8782 | |
412 | || data->type == it8783; | |
0475169c | 413 | } |
1da177e4 | 414 | |
4f3f51bc JD |
415 | static inline int has_old_autopwm(const struct it87_data *data) |
416 | { | |
4a0d71cf GR |
417 | /* |
418 | * The old automatic fan speed control interface is implemented | |
419 | * by IT8705F chips up to revision F and IT8712F chips up to | |
420 | * revision G. | |
421 | */ | |
4f3f51bc JD |
422 | return (data->type == it87 && data->revision < 0x03) |
423 | || (data->type == it8712 && data->revision < 0x08); | |
424 | } | |
425 | ||
b74f3fdd | 426 | static int it87_probe(struct platform_device *pdev); |
d0546128 | 427 | static int __devexit it87_remove(struct platform_device *pdev); |
1da177e4 | 428 | |
b74f3fdd | 429 | static int it87_read_value(struct it87_data *data, u8 reg); |
430 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 431 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 432 | static int it87_check_pwm(struct device *dev); |
433 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
434 | |
435 | ||
b74f3fdd | 436 | static struct platform_driver it87_driver = { |
cdaf7934 | 437 | .driver = { |
87218842 | 438 | .owner = THIS_MODULE, |
b74f3fdd | 439 | .name = DRVNAME, |
cdaf7934 | 440 | }, |
b74f3fdd | 441 | .probe = it87_probe, |
442 | .remove = __devexit_p(it87_remove), | |
fde09509 JD |
443 | }; |
444 | ||
20ad93d4 JD |
445 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
446 | char *buf) | |
1da177e4 | 447 | { |
20ad93d4 JD |
448 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
449 | int nr = sensor_attr->index; | |
450 | ||
1da177e4 | 451 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 452 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr])); |
1da177e4 LT |
453 | } |
454 | ||
20ad93d4 JD |
455 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
456 | char *buf) | |
1da177e4 | 457 | { |
20ad93d4 JD |
458 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
459 | int nr = sensor_attr->index; | |
460 | ||
1da177e4 | 461 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 462 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_min[nr])); |
1da177e4 LT |
463 | } |
464 | ||
20ad93d4 JD |
465 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
466 | char *buf) | |
1da177e4 | 467 | { |
20ad93d4 JD |
468 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
469 | int nr = sensor_attr->index; | |
470 | ||
1da177e4 | 471 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 472 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_max[nr])); |
1da177e4 LT |
473 | } |
474 | ||
20ad93d4 JD |
475 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
476 | const char *buf, size_t count) | |
1da177e4 | 477 | { |
20ad93d4 JD |
478 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
479 | int nr = sensor_attr->index; | |
480 | ||
b74f3fdd | 481 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
482 | unsigned long val; |
483 | ||
179c4fdb | 484 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 485 | return -EINVAL; |
1da177e4 | 486 | |
9a61bf63 | 487 | mutex_lock(&data->update_lock); |
44c1bcd4 | 488 | data->in_min[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 489 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
1da177e4 | 490 | data->in_min[nr]); |
9a61bf63 | 491 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
492 | return count; |
493 | } | |
20ad93d4 JD |
494 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
495 | const char *buf, size_t count) | |
1da177e4 | 496 | { |
20ad93d4 JD |
497 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
498 | int nr = sensor_attr->index; | |
499 | ||
b74f3fdd | 500 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
501 | unsigned long val; |
502 | ||
179c4fdb | 503 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 504 | return -EINVAL; |
1da177e4 | 505 | |
9a61bf63 | 506 | mutex_lock(&data->update_lock); |
44c1bcd4 | 507 | data->in_max[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 508 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
1da177e4 | 509 | data->in_max[nr]); |
9a61bf63 | 510 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
511 | return count; |
512 | } | |
513 | ||
514 | #define show_in_offset(offset) \ | |
20ad93d4 JD |
515 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
516 | show_in, NULL, offset); | |
1da177e4 LT |
517 | |
518 | #define limit_in_offset(offset) \ | |
20ad93d4 JD |
519 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
520 | show_in_min, set_in_min, offset); \ | |
521 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
522 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
523 | |
524 | show_in_offset(0); | |
525 | limit_in_offset(0); | |
526 | show_in_offset(1); | |
527 | limit_in_offset(1); | |
528 | show_in_offset(2); | |
529 | limit_in_offset(2); | |
530 | show_in_offset(3); | |
531 | limit_in_offset(3); | |
532 | show_in_offset(4); | |
533 | limit_in_offset(4); | |
534 | show_in_offset(5); | |
535 | limit_in_offset(5); | |
536 | show_in_offset(6); | |
537 | limit_in_offset(6); | |
538 | show_in_offset(7); | |
539 | limit_in_offset(7); | |
540 | show_in_offset(8); | |
541 | ||
542 | /* 3 temperatures */ | |
20ad93d4 JD |
543 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
544 | char *buf) | |
1da177e4 | 545 | { |
20ad93d4 JD |
546 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
547 | int nr = sensor_attr->index; | |
548 | ||
1da177e4 LT |
549 | struct it87_data *data = it87_update_device(dev); |
550 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
551 | } | |
20ad93d4 JD |
552 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
553 | char *buf) | |
1da177e4 | 554 | { |
20ad93d4 JD |
555 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
556 | int nr = sensor_attr->index; | |
557 | ||
1da177e4 LT |
558 | struct it87_data *data = it87_update_device(dev); |
559 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
560 | } | |
20ad93d4 JD |
561 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
562 | char *buf) | |
1da177e4 | 563 | { |
20ad93d4 JD |
564 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
565 | int nr = sensor_attr->index; | |
566 | ||
1da177e4 LT |
567 | struct it87_data *data = it87_update_device(dev); |
568 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); | |
569 | } | |
20ad93d4 JD |
570 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
571 | const char *buf, size_t count) | |
1da177e4 | 572 | { |
20ad93d4 JD |
573 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
574 | int nr = sensor_attr->index; | |
575 | ||
b74f3fdd | 576 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
577 | long val; |
578 | ||
179c4fdb | 579 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 580 | return -EINVAL; |
1da177e4 | 581 | |
9a61bf63 | 582 | mutex_lock(&data->update_lock); |
1da177e4 | 583 | data->temp_high[nr] = TEMP_TO_REG(val); |
b74f3fdd | 584 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
9a61bf63 | 585 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
586 | return count; |
587 | } | |
20ad93d4 JD |
588 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
589 | const char *buf, size_t count) | |
1da177e4 | 590 | { |
20ad93d4 JD |
591 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
592 | int nr = sensor_attr->index; | |
593 | ||
b74f3fdd | 594 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
595 | long val; |
596 | ||
179c4fdb | 597 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 598 | return -EINVAL; |
1da177e4 | 599 | |
9a61bf63 | 600 | mutex_lock(&data->update_lock); |
1da177e4 | 601 | data->temp_low[nr] = TEMP_TO_REG(val); |
b74f3fdd | 602 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
9a61bf63 | 603 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
604 | return count; |
605 | } | |
606 | #define show_temp_offset(offset) \ | |
20ad93d4 JD |
607 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
608 | show_temp, NULL, offset - 1); \ | |
609 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
610 | show_temp_max, set_temp_max, offset - 1); \ | |
611 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
612 | show_temp_min, set_temp_min, offset - 1); | |
1da177e4 LT |
613 | |
614 | show_temp_offset(1); | |
615 | show_temp_offset(2); | |
616 | show_temp_offset(3); | |
617 | ||
20ad93d4 JD |
618 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
619 | char *buf) | |
1da177e4 | 620 | { |
20ad93d4 JD |
621 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
622 | int nr = sensor_attr->index; | |
1da177e4 | 623 | struct it87_data *data = it87_update_device(dev); |
4a0d71cf | 624 | u8 reg = data->sensor; /* In case value is updated while used */ |
5f2dc798 | 625 | |
1da177e4 LT |
626 | if (reg & (1 << nr)) |
627 | return sprintf(buf, "3\n"); /* thermal diode */ | |
628 | if (reg & (8 << nr)) | |
4ed10779 | 629 | return sprintf(buf, "4\n"); /* thermistor */ |
1da177e4 LT |
630 | return sprintf(buf, "0\n"); /* disabled */ |
631 | } | |
20ad93d4 JD |
632 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
633 | const char *buf, size_t count) | |
1da177e4 | 634 | { |
20ad93d4 JD |
635 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
636 | int nr = sensor_attr->index; | |
637 | ||
b74f3fdd | 638 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 639 | long val; |
8acf07c5 | 640 | u8 reg; |
f5f64501 | 641 | |
179c4fdb | 642 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 643 | return -EINVAL; |
1da177e4 | 644 | |
8acf07c5 JD |
645 | reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
646 | reg &= ~(1 << nr); | |
647 | reg &= ~(8 << nr); | |
4ed10779 JD |
648 | if (val == 2) { /* backwards compatibility */ |
649 | dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " | |
650 | "instead\n"); | |
651 | val = 4; | |
652 | } | |
653 | /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ | |
1da177e4 | 654 | if (val == 3) |
8acf07c5 | 655 | reg |= 1 << nr; |
4ed10779 | 656 | else if (val == 4) |
8acf07c5 JD |
657 | reg |= 8 << nr; |
658 | else if (val != 0) | |
1da177e4 | 659 | return -EINVAL; |
8acf07c5 JD |
660 | |
661 | mutex_lock(&data->update_lock); | |
662 | data->sensor = reg; | |
b74f3fdd | 663 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
2b3d1d87 | 664 | data->valid = 0; /* Force cache refresh */ |
9a61bf63 | 665 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
666 | return count; |
667 | } | |
668 | #define show_sensor_offset(offset) \ | |
20ad93d4 JD |
669 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
670 | show_sensor, set_sensor, offset - 1); | |
1da177e4 LT |
671 | |
672 | show_sensor_offset(1); | |
673 | show_sensor_offset(2); | |
674 | show_sensor_offset(3); | |
675 | ||
676 | /* 3 Fans */ | |
b99883dc JD |
677 | |
678 | static int pwm_mode(const struct it87_data *data, int nr) | |
679 | { | |
680 | int ctrl = data->fan_main_ctrl & (1 << nr); | |
681 | ||
682 | if (ctrl == 0) /* Full speed */ | |
683 | return 0; | |
684 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
685 | return 2; | |
686 | else /* Manual mode */ | |
687 | return 1; | |
688 | } | |
689 | ||
20ad93d4 JD |
690 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
691 | char *buf) | |
1da177e4 | 692 | { |
20ad93d4 JD |
693 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
694 | int nr = sensor_attr->index; | |
695 | ||
1da177e4 | 696 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 | 697 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
1da177e4 LT |
698 | DIV_FROM_REG(data->fan_div[nr]))); |
699 | } | |
20ad93d4 JD |
700 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
701 | char *buf) | |
1da177e4 | 702 | { |
20ad93d4 JD |
703 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
704 | int nr = sensor_attr->index; | |
705 | ||
1da177e4 | 706 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
707 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
708 | DIV_FROM_REG(data->fan_div[nr]))); | |
1da177e4 | 709 | } |
20ad93d4 JD |
710 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
711 | char *buf) | |
1da177e4 | 712 | { |
20ad93d4 JD |
713 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
714 | int nr = sensor_attr->index; | |
715 | ||
1da177e4 LT |
716 | struct it87_data *data = it87_update_device(dev); |
717 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
718 | } | |
5f2dc798 JD |
719 | static ssize_t show_pwm_enable(struct device *dev, |
720 | struct device_attribute *attr, char *buf) | |
1da177e4 | 721 | { |
20ad93d4 JD |
722 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
723 | int nr = sensor_attr->index; | |
724 | ||
1da177e4 | 725 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 726 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
1da177e4 | 727 | } |
20ad93d4 JD |
728 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
729 | char *buf) | |
1da177e4 | 730 | { |
20ad93d4 JD |
731 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
732 | int nr = sensor_attr->index; | |
733 | ||
1da177e4 | 734 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 JD |
735 | return sprintf(buf, "%d\n", |
736 | pwm_from_reg(data, data->pwm_duty[nr])); | |
1da177e4 | 737 | } |
f8d0c19a JD |
738 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
739 | char *buf) | |
740 | { | |
741 | struct it87_data *data = it87_update_device(dev); | |
742 | int index = (data->fan_ctl >> 4) & 0x07; | |
743 | ||
744 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
745 | } | |
20ad93d4 JD |
746 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
747 | const char *buf, size_t count) | |
1da177e4 | 748 | { |
20ad93d4 JD |
749 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
750 | int nr = sensor_attr->index; | |
751 | ||
b74f3fdd | 752 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 753 | long val; |
7f999aa7 | 754 | u8 reg; |
1da177e4 | 755 | |
179c4fdb | 756 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 JD |
757 | return -EINVAL; |
758 | ||
9a61bf63 | 759 | mutex_lock(&data->update_lock); |
b74f3fdd | 760 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
07eab46d | 761 | switch (nr) { |
5f2dc798 JD |
762 | case 0: |
763 | data->fan_div[nr] = reg & 0x07; | |
764 | break; | |
765 | case 1: | |
766 | data->fan_div[nr] = (reg >> 3) & 0x07; | |
767 | break; | |
768 | case 2: | |
769 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; | |
770 | break; | |
07eab46d JD |
771 | } |
772 | ||
1da177e4 | 773 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
c7f1f716 | 774 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
9a61bf63 | 775 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
776 | return count; |
777 | } | |
20ad93d4 JD |
778 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
779 | const char *buf, size_t count) | |
1da177e4 | 780 | { |
20ad93d4 JD |
781 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
782 | int nr = sensor_attr->index; | |
783 | ||
b74f3fdd | 784 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 785 | unsigned long val; |
8ab4ec3e | 786 | int min; |
1da177e4 LT |
787 | u8 old; |
788 | ||
179c4fdb | 789 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
790 | return -EINVAL; |
791 | ||
9a61bf63 | 792 | mutex_lock(&data->update_lock); |
b74f3fdd | 793 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 794 | |
8ab4ec3e JD |
795 | /* Save fan min limit */ |
796 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
1da177e4 LT |
797 | |
798 | switch (nr) { | |
799 | case 0: | |
800 | case 1: | |
801 | data->fan_div[nr] = DIV_TO_REG(val); | |
802 | break; | |
803 | case 2: | |
804 | if (val < 8) | |
805 | data->fan_div[nr] = 1; | |
806 | else | |
807 | data->fan_div[nr] = 3; | |
808 | } | |
809 | val = old & 0x80; | |
810 | val |= (data->fan_div[0] & 0x07); | |
811 | val |= (data->fan_div[1] & 0x07) << 3; | |
812 | if (data->fan_div[2] == 3) | |
813 | val |= 0x1 << 6; | |
b74f3fdd | 814 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 815 | |
8ab4ec3e JD |
816 | /* Restore fan min limit */ |
817 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
c7f1f716 | 818 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
8ab4ec3e | 819 | |
9a61bf63 | 820 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
821 | return count; |
822 | } | |
cccfc9c4 JD |
823 | |
824 | /* Returns 0 if OK, -EINVAL otherwise */ | |
825 | static int check_trip_points(struct device *dev, int nr) | |
826 | { | |
827 | const struct it87_data *data = dev_get_drvdata(dev); | |
828 | int i, err = 0; | |
829 | ||
830 | if (has_old_autopwm(data)) { | |
831 | for (i = 0; i < 3; i++) { | |
832 | if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) | |
833 | err = -EINVAL; | |
834 | } | |
835 | for (i = 0; i < 2; i++) { | |
836 | if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) | |
837 | err = -EINVAL; | |
838 | } | |
839 | } | |
840 | ||
841 | if (err) { | |
842 | dev_err(dev, "Inconsistent trip points, not switching to " | |
843 | "automatic mode\n"); | |
844 | dev_err(dev, "Adjust the trip points and try again\n"); | |
845 | } | |
846 | return err; | |
847 | } | |
848 | ||
20ad93d4 JD |
849 | static ssize_t set_pwm_enable(struct device *dev, |
850 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 851 | { |
20ad93d4 JD |
852 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
853 | int nr = sensor_attr->index; | |
854 | ||
b74f3fdd | 855 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 856 | long val; |
1da177e4 | 857 | |
179c4fdb | 858 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
b99883dc JD |
859 | return -EINVAL; |
860 | ||
cccfc9c4 JD |
861 | /* Check trip points before switching to automatic mode */ |
862 | if (val == 2) { | |
863 | if (check_trip_points(dev, nr) < 0) | |
864 | return -EINVAL; | |
865 | } | |
866 | ||
9a61bf63 | 867 | mutex_lock(&data->update_lock); |
1da177e4 LT |
868 | |
869 | if (val == 0) { | |
870 | int tmp; | |
871 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 872 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
873 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
874 | /* set on/off mode */ |
875 | data->fan_main_ctrl &= ~(1 << nr); | |
5f2dc798 JD |
876 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
877 | data->fan_main_ctrl); | |
b99883dc JD |
878 | } else { |
879 | if (val == 1) /* Manual mode */ | |
16b5dda2 | 880 | data->pwm_ctrl[nr] = has_newer_autopwm(data) ? |
6229cdb2 JD |
881 | data->pwm_temp_map[nr] : |
882 | data->pwm_duty[nr]; | |
b99883dc JD |
883 | else /* Automatic mode */ |
884 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
885 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1da177e4 LT |
886 | /* set SmartGuardian mode */ |
887 | data->fan_main_ctrl |= (1 << nr); | |
5f2dc798 JD |
888 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
889 | data->fan_main_ctrl); | |
1da177e4 LT |
890 | } |
891 | ||
9a61bf63 | 892 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
893 | return count; |
894 | } | |
20ad93d4 JD |
895 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
896 | const char *buf, size_t count) | |
1da177e4 | 897 | { |
20ad93d4 JD |
898 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
899 | int nr = sensor_attr->index; | |
900 | ||
b74f3fdd | 901 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 902 | long val; |
1da177e4 | 903 | |
179c4fdb | 904 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1da177e4 LT |
905 | return -EINVAL; |
906 | ||
9a61bf63 | 907 | mutex_lock(&data->update_lock); |
16b5dda2 | 908 | if (has_newer_autopwm(data)) { |
4a0d71cf GR |
909 | /* |
910 | * If we are in automatic mode, the PWM duty cycle register | |
911 | * is read-only so we can't write the value. | |
912 | */ | |
6229cdb2 JD |
913 | if (data->pwm_ctrl[nr] & 0x80) { |
914 | mutex_unlock(&data->update_lock); | |
915 | return -EBUSY; | |
916 | } | |
917 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
918 | it87_write_value(data, IT87_REG_PWM_DUTY(nr), | |
919 | data->pwm_duty[nr]); | |
920 | } else { | |
921 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
4a0d71cf GR |
922 | /* |
923 | * If we are in manual mode, write the duty cycle immediately; | |
924 | * otherwise, just store it for later use. | |
925 | */ | |
6229cdb2 JD |
926 | if (!(data->pwm_ctrl[nr] & 0x80)) { |
927 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
928 | it87_write_value(data, IT87_REG_PWM(nr), | |
929 | data->pwm_ctrl[nr]); | |
930 | } | |
b99883dc | 931 | } |
9a61bf63 | 932 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
933 | return count; |
934 | } | |
f8d0c19a JD |
935 | static ssize_t set_pwm_freq(struct device *dev, |
936 | struct device_attribute *attr, const char *buf, size_t count) | |
937 | { | |
b74f3fdd | 938 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 939 | unsigned long val; |
f8d0c19a JD |
940 | int i; |
941 | ||
179c4fdb | 942 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
943 | return -EINVAL; |
944 | ||
f8d0c19a JD |
945 | /* Search for the nearest available frequency */ |
946 | for (i = 0; i < 7; i++) { | |
947 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
948 | break; | |
949 | } | |
950 | ||
951 | mutex_lock(&data->update_lock); | |
b74f3fdd | 952 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 953 | data->fan_ctl |= i << 4; |
b74f3fdd | 954 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
955 | mutex_unlock(&data->update_lock); |
956 | ||
957 | return count; | |
958 | } | |
94ac7ee6 JD |
959 | static ssize_t show_pwm_temp_map(struct device *dev, |
960 | struct device_attribute *attr, char *buf) | |
961 | { | |
962 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
963 | int nr = sensor_attr->index; | |
964 | ||
965 | struct it87_data *data = it87_update_device(dev); | |
966 | int map; | |
967 | ||
968 | if (data->pwm_temp_map[nr] < 3) | |
969 | map = 1 << data->pwm_temp_map[nr]; | |
970 | else | |
971 | map = 0; /* Should never happen */ | |
972 | return sprintf(buf, "%d\n", map); | |
973 | } | |
974 | static ssize_t set_pwm_temp_map(struct device *dev, | |
975 | struct device_attribute *attr, const char *buf, size_t count) | |
976 | { | |
977 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
978 | int nr = sensor_attr->index; | |
979 | ||
980 | struct it87_data *data = dev_get_drvdata(dev); | |
981 | long val; | |
982 | u8 reg; | |
983 | ||
4a0d71cf GR |
984 | /* |
985 | * This check can go away if we ever support automatic fan speed | |
986 | * control on newer chips. | |
987 | */ | |
4f3f51bc JD |
988 | if (!has_old_autopwm(data)) { |
989 | dev_notice(dev, "Mapping change disabled for safety reasons\n"); | |
990 | return -EINVAL; | |
991 | } | |
992 | ||
179c4fdb | 993 | if (kstrtol(buf, 10, &val) < 0) |
94ac7ee6 JD |
994 | return -EINVAL; |
995 | ||
996 | switch (val) { | |
997 | case (1 << 0): | |
998 | reg = 0x00; | |
999 | break; | |
1000 | case (1 << 1): | |
1001 | reg = 0x01; | |
1002 | break; | |
1003 | case (1 << 2): | |
1004 | reg = 0x02; | |
1005 | break; | |
1006 | default: | |
1007 | return -EINVAL; | |
1008 | } | |
1009 | ||
1010 | mutex_lock(&data->update_lock); | |
1011 | data->pwm_temp_map[nr] = reg; | |
4a0d71cf GR |
1012 | /* |
1013 | * If we are in automatic mode, write the temp mapping immediately; | |
1014 | * otherwise, just store it for later use. | |
1015 | */ | |
94ac7ee6 JD |
1016 | if (data->pwm_ctrl[nr] & 0x80) { |
1017 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
1018 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1019 | } | |
1020 | mutex_unlock(&data->update_lock); | |
1021 | return count; | |
1022 | } | |
1da177e4 | 1023 | |
4f3f51bc JD |
1024 | static ssize_t show_auto_pwm(struct device *dev, |
1025 | struct device_attribute *attr, char *buf) | |
1026 | { | |
1027 | struct it87_data *data = it87_update_device(dev); | |
1028 | struct sensor_device_attribute_2 *sensor_attr = | |
1029 | to_sensor_dev_attr_2(attr); | |
1030 | int nr = sensor_attr->nr; | |
1031 | int point = sensor_attr->index; | |
1032 | ||
44c1bcd4 JD |
1033 | return sprintf(buf, "%d\n", |
1034 | pwm_from_reg(data, data->auto_pwm[nr][point])); | |
4f3f51bc JD |
1035 | } |
1036 | ||
1037 | static ssize_t set_auto_pwm(struct device *dev, | |
1038 | struct device_attribute *attr, const char *buf, size_t count) | |
1039 | { | |
1040 | struct it87_data *data = dev_get_drvdata(dev); | |
1041 | struct sensor_device_attribute_2 *sensor_attr = | |
1042 | to_sensor_dev_attr_2(attr); | |
1043 | int nr = sensor_attr->nr; | |
1044 | int point = sensor_attr->index; | |
1045 | long val; | |
1046 | ||
179c4fdb | 1047 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
4f3f51bc JD |
1048 | return -EINVAL; |
1049 | ||
1050 | mutex_lock(&data->update_lock); | |
44c1bcd4 | 1051 | data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
4f3f51bc JD |
1052 | it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
1053 | data->auto_pwm[nr][point]); | |
1054 | mutex_unlock(&data->update_lock); | |
1055 | return count; | |
1056 | } | |
1057 | ||
1058 | static ssize_t show_auto_temp(struct device *dev, | |
1059 | struct device_attribute *attr, char *buf) | |
1060 | { | |
1061 | struct it87_data *data = it87_update_device(dev); | |
1062 | struct sensor_device_attribute_2 *sensor_attr = | |
1063 | to_sensor_dev_attr_2(attr); | |
1064 | int nr = sensor_attr->nr; | |
1065 | int point = sensor_attr->index; | |
1066 | ||
1067 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); | |
1068 | } | |
1069 | ||
1070 | static ssize_t set_auto_temp(struct device *dev, | |
1071 | struct device_attribute *attr, const char *buf, size_t count) | |
1072 | { | |
1073 | struct it87_data *data = dev_get_drvdata(dev); | |
1074 | struct sensor_device_attribute_2 *sensor_attr = | |
1075 | to_sensor_dev_attr_2(attr); | |
1076 | int nr = sensor_attr->nr; | |
1077 | int point = sensor_attr->index; | |
1078 | long val; | |
1079 | ||
179c4fdb | 1080 | if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) |
4f3f51bc JD |
1081 | return -EINVAL; |
1082 | ||
1083 | mutex_lock(&data->update_lock); | |
1084 | data->auto_temp[nr][point] = TEMP_TO_REG(val); | |
1085 | it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), | |
1086 | data->auto_temp[nr][point]); | |
1087 | mutex_unlock(&data->update_lock); | |
1088 | return count; | |
1089 | } | |
1090 | ||
20ad93d4 JD |
1091 | #define show_fan_offset(offset) \ |
1092 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
1093 | show_fan, NULL, offset - 1); \ | |
1094 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1095 | show_fan_min, set_fan_min, offset - 1); \ | |
1096 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
1097 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
1098 | |
1099 | show_fan_offset(1); | |
1100 | show_fan_offset(2); | |
1101 | show_fan_offset(3); | |
1102 | ||
1103 | #define show_pwm_offset(offset) \ | |
20ad93d4 JD |
1104 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
1105 | show_pwm_enable, set_pwm_enable, offset - 1); \ | |
1106 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
f8d0c19a JD |
1107 | show_pwm, set_pwm, offset - 1); \ |
1108 | static DEVICE_ATTR(pwm##offset##_freq, \ | |
1109 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ | |
94ac7ee6 JD |
1110 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ |
1111 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ | |
4f3f51bc JD |
1112 | S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \ |
1113 | offset - 1); \ | |
1114 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \ | |
1115 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1116 | offset - 1, 0); \ | |
1117 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \ | |
1118 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1119 | offset - 1, 1); \ | |
1120 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \ | |
1121 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1122 | offset - 1, 2); \ | |
1123 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \ | |
1124 | S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \ | |
1125 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \ | |
1126 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1127 | offset - 1, 1); \ | |
1128 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \ | |
1129 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1130 | offset - 1, 0); \ | |
1131 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \ | |
1132 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1133 | offset - 1, 2); \ | |
1134 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \ | |
1135 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1136 | offset - 1, 3); \ | |
1137 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \ | |
1138 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1139 | offset - 1, 4); | |
1da177e4 LT |
1140 | |
1141 | show_pwm_offset(1); | |
1142 | show_pwm_offset(2); | |
1143 | show_pwm_offset(3); | |
1144 | ||
17d648bf JD |
1145 | /* A different set of callbacks for 16-bit fans */ |
1146 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, | |
1147 | char *buf) | |
1148 | { | |
1149 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1150 | int nr = sensor_attr->index; | |
1151 | struct it87_data *data = it87_update_device(dev); | |
1152 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); | |
1153 | } | |
1154 | ||
1155 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, | |
1156 | char *buf) | |
1157 | { | |
1158 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1159 | int nr = sensor_attr->index; | |
1160 | struct it87_data *data = it87_update_device(dev); | |
1161 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); | |
1162 | } | |
1163 | ||
1164 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, | |
1165 | const char *buf, size_t count) | |
1166 | { | |
1167 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1168 | int nr = sensor_attr->index; | |
b74f3fdd | 1169 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1170 | long val; |
1171 | ||
179c4fdb | 1172 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 1173 | return -EINVAL; |
17d648bf JD |
1174 | |
1175 | mutex_lock(&data->update_lock); | |
1176 | data->fan_min[nr] = FAN16_TO_REG(val); | |
c7f1f716 | 1177 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
17d648bf | 1178 | data->fan_min[nr] & 0xff); |
c7f1f716 | 1179 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
17d648bf JD |
1180 | data->fan_min[nr] >> 8); |
1181 | mutex_unlock(&data->update_lock); | |
1182 | return count; | |
1183 | } | |
1184 | ||
4a0d71cf GR |
1185 | /* |
1186 | * We want to use the same sysfs file names as 8-bit fans, but we need | |
1187 | * different variable names, so we have to use SENSOR_ATTR instead of | |
1188 | * SENSOR_DEVICE_ATTR. | |
1189 | */ | |
17d648bf JD |
1190 | #define show_fan16_offset(offset) \ |
1191 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ | |
1192 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ | |
1193 | show_fan16, NULL, offset - 1); \ | |
1194 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ | |
1195 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1196 | show_fan16_min, set_fan16_min, offset - 1) | |
1197 | ||
1198 | show_fan16_offset(1); | |
1199 | show_fan16_offset(2); | |
1200 | show_fan16_offset(3); | |
c7f1f716 JD |
1201 | show_fan16_offset(4); |
1202 | show_fan16_offset(5); | |
17d648bf | 1203 | |
1da177e4 | 1204 | /* Alarms */ |
5f2dc798 JD |
1205 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
1206 | char *buf) | |
1da177e4 LT |
1207 | { |
1208 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 1209 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 1210 | } |
1d66c64c | 1211 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 1212 | |
0124dd78 JD |
1213 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
1214 | char *buf) | |
1215 | { | |
1216 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1217 | struct it87_data *data = it87_update_device(dev); | |
1218 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
1219 | } | |
3d30f9e6 JD |
1220 | |
1221 | static ssize_t clear_intrusion(struct device *dev, struct device_attribute | |
1222 | *attr, const char *buf, size_t count) | |
1223 | { | |
1224 | struct it87_data *data = dev_get_drvdata(dev); | |
1225 | long val; | |
1226 | int config; | |
1227 | ||
179c4fdb | 1228 | if (kstrtol(buf, 10, &val) < 0 || val != 0) |
3d30f9e6 JD |
1229 | return -EINVAL; |
1230 | ||
1231 | mutex_lock(&data->update_lock); | |
1232 | config = it87_read_value(data, IT87_REG_CONFIG); | |
1233 | if (config < 0) { | |
1234 | count = config; | |
1235 | } else { | |
1236 | config |= 1 << 5; | |
1237 | it87_write_value(data, IT87_REG_CONFIG, config); | |
1238 | /* Invalidate cache to force re-read */ | |
1239 | data->valid = 0; | |
1240 | } | |
1241 | mutex_unlock(&data->update_lock); | |
1242 | ||
1243 | return count; | |
1244 | } | |
1245 | ||
0124dd78 JD |
1246 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
1247 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
1248 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
1249 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
1250 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
1251 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
1252 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1253 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
1254 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
1255 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
1256 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
1257 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
1258 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
1259 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
1260 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
1261 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
3d30f9e6 JD |
1262 | static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, |
1263 | show_alarm, clear_intrusion, 4); | |
0124dd78 | 1264 | |
d9b327c3 JD |
1265 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
1266 | char *buf) | |
1267 | { | |
1268 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1269 | struct it87_data *data = it87_update_device(dev); | |
1270 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); | |
1271 | } | |
1272 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
1273 | const char *buf, size_t count) | |
1274 | { | |
1275 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1276 | struct it87_data *data = dev_get_drvdata(dev); | |
1277 | long val; | |
1278 | ||
179c4fdb | 1279 | if (kstrtol(buf, 10, &val) < 0 |
d9b327c3 JD |
1280 | || (val != 0 && val != 1)) |
1281 | return -EINVAL; | |
1282 | ||
1283 | mutex_lock(&data->update_lock); | |
1284 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
1285 | if (val) | |
1286 | data->beeps |= (1 << bitnr); | |
1287 | else | |
1288 | data->beeps &= ~(1 << bitnr); | |
1289 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); | |
1290 | mutex_unlock(&data->update_lock); | |
1291 | return count; | |
1292 | } | |
1293 | ||
1294 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
1295 | show_beep, set_beep, 1); | |
1296 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); | |
1297 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); | |
1298 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); | |
1299 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); | |
1300 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); | |
1301 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); | |
1302 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); | |
1303 | /* fanX_beep writability is set later */ | |
1304 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); | |
1305 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); | |
1306 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); | |
1307 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); | |
1308 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); | |
1309 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
1310 | show_beep, set_beep, 2); | |
1311 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); | |
1312 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); | |
1313 | ||
5f2dc798 JD |
1314 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1315 | char *buf) | |
1da177e4 | 1316 | { |
90d6619a | 1317 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 1318 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 | 1319 | } |
5f2dc798 JD |
1320 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1321 | const char *buf, size_t count) | |
1da177e4 | 1322 | { |
b74f3fdd | 1323 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1324 | unsigned long val; |
1325 | ||
179c4fdb | 1326 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 1327 | return -EINVAL; |
1da177e4 | 1328 | |
1da177e4 LT |
1329 | data->vrm = val; |
1330 | ||
1331 | return count; | |
1332 | } | |
1333 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 | 1334 | |
5f2dc798 JD |
1335 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1336 | char *buf) | |
1da177e4 LT |
1337 | { |
1338 | struct it87_data *data = it87_update_device(dev); | |
1339 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
1340 | } | |
1341 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 1342 | |
738e5e05 JD |
1343 | static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
1344 | char *buf) | |
1345 | { | |
3c4c4971 | 1346 | static const char * const labels[] = { |
738e5e05 JD |
1347 | "+5V", |
1348 | "5VSB", | |
1349 | "Vbat", | |
1350 | }; | |
3c4c4971 | 1351 | static const char * const labels_it8721[] = { |
44c1bcd4 JD |
1352 | "+3.3V", |
1353 | "3VSB", | |
1354 | "Vbat", | |
1355 | }; | |
1356 | struct it87_data *data = dev_get_drvdata(dev); | |
738e5e05 JD |
1357 | int nr = to_sensor_dev_attr(attr)->index; |
1358 | ||
16b5dda2 JD |
1359 | return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr] |
1360 | : labels[nr]); | |
738e5e05 JD |
1361 | } |
1362 | static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); | |
1363 | static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); | |
1364 | static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); | |
1365 | ||
b74f3fdd | 1366 | static ssize_t show_name(struct device *dev, struct device_attribute |
1367 | *devattr, char *buf) | |
1368 | { | |
1369 | struct it87_data *data = dev_get_drvdata(dev); | |
1370 | return sprintf(buf, "%s\n", data->name); | |
1371 | } | |
1372 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1373 | ||
87808be4 JD |
1374 | static struct attribute *it87_attributes[] = { |
1375 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1376 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1377 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1378 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1379 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1380 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1381 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1382 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1383 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
1384 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1385 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1386 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1387 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1388 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1389 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1390 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1391 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1392 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1393 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1394 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1395 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
1396 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
1397 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1398 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1399 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 JD |
1400 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1401 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1402 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1403 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
1404 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
1405 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
1406 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1407 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
87808be4 JD |
1408 | |
1409 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1410 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1411 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1412 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1413 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1414 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1415 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1416 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1417 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1418 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
1419 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
1420 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 JD |
1421 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1422 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1423 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
87808be4 JD |
1424 | |
1425 | &dev_attr_alarms.attr, | |
3d30f9e6 | 1426 | &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
b74f3fdd | 1427 | &dev_attr_name.attr, |
87808be4 JD |
1428 | NULL |
1429 | }; | |
1430 | ||
1431 | static const struct attribute_group it87_group = { | |
1432 | .attrs = it87_attributes, | |
1433 | }; | |
1434 | ||
d9b327c3 JD |
1435 | static struct attribute *it87_attributes_beep[] = { |
1436 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
1437 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
1438 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
1439 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
1440 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
1441 | &sensor_dev_attr_in5_beep.dev_attr.attr, | |
1442 | &sensor_dev_attr_in6_beep.dev_attr.attr, | |
1443 | &sensor_dev_attr_in7_beep.dev_attr.attr, | |
1444 | ||
1445 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
1446 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
1447 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
1448 | NULL | |
1449 | }; | |
1450 | ||
1451 | static const struct attribute_group it87_group_beep = { | |
1452 | .attrs = it87_attributes_beep, | |
1453 | }; | |
1454 | ||
723a0aa0 | 1455 | static struct attribute *it87_attributes_fan16[5][3+1] = { { |
87808be4 JD |
1456 | &sensor_dev_attr_fan1_input16.dev_attr.attr, |
1457 | &sensor_dev_attr_fan1_min16.dev_attr.attr, | |
723a0aa0 JD |
1458 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1459 | NULL | |
1460 | }, { | |
87808be4 JD |
1461 | &sensor_dev_attr_fan2_input16.dev_attr.attr, |
1462 | &sensor_dev_attr_fan2_min16.dev_attr.attr, | |
723a0aa0 JD |
1463 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1464 | NULL | |
1465 | }, { | |
87808be4 JD |
1466 | &sensor_dev_attr_fan3_input16.dev_attr.attr, |
1467 | &sensor_dev_attr_fan3_min16.dev_attr.attr, | |
723a0aa0 JD |
1468 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1469 | NULL | |
1470 | }, { | |
c7f1f716 JD |
1471 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
1472 | &sensor_dev_attr_fan4_min16.dev_attr.attr, | |
723a0aa0 JD |
1473 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1474 | NULL | |
1475 | }, { | |
c7f1f716 JD |
1476 | &sensor_dev_attr_fan5_input16.dev_attr.attr, |
1477 | &sensor_dev_attr_fan5_min16.dev_attr.attr, | |
723a0aa0 JD |
1478 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1479 | NULL | |
1480 | } }; | |
1481 | ||
1482 | static const struct attribute_group it87_group_fan16[5] = { | |
1483 | { .attrs = it87_attributes_fan16[0] }, | |
1484 | { .attrs = it87_attributes_fan16[1] }, | |
1485 | { .attrs = it87_attributes_fan16[2] }, | |
1486 | { .attrs = it87_attributes_fan16[3] }, | |
1487 | { .attrs = it87_attributes_fan16[4] }, | |
1488 | }; | |
87808be4 | 1489 | |
723a0aa0 | 1490 | static struct attribute *it87_attributes_fan[3][4+1] = { { |
87808be4 JD |
1491 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1492 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1493 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
723a0aa0 JD |
1494 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1495 | NULL | |
1496 | }, { | |
87808be4 JD |
1497 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1498 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1499 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
723a0aa0 JD |
1500 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1501 | NULL | |
1502 | }, { | |
87808be4 JD |
1503 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1504 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1505 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
0124dd78 | 1506 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
723a0aa0 JD |
1507 | NULL |
1508 | } }; | |
1509 | ||
1510 | static const struct attribute_group it87_group_fan[3] = { | |
1511 | { .attrs = it87_attributes_fan[0] }, | |
1512 | { .attrs = it87_attributes_fan[1] }, | |
1513 | { .attrs = it87_attributes_fan[2] }, | |
1514 | }; | |
1515 | ||
1516 | static const struct attribute_group * | |
1517 | it87_get_fan_group(const struct it87_data *data) | |
1518 | { | |
1519 | return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; | |
1520 | } | |
0124dd78 | 1521 | |
723a0aa0 | 1522 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
87808be4 | 1523 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
87808be4 | 1524 | &sensor_dev_attr_pwm1.dev_attr.attr, |
d5b0b5d6 | 1525 | &dev_attr_pwm1_freq.attr, |
94ac7ee6 | 1526 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1527 | NULL |
1528 | }, { | |
1529 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1530 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1531 | &dev_attr_pwm2_freq.attr, | |
94ac7ee6 | 1532 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1533 | NULL |
1534 | }, { | |
1535 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1536 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1537 | &dev_attr_pwm3_freq.attr, | |
94ac7ee6 | 1538 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1539 | NULL |
1540 | } }; | |
87808be4 | 1541 | |
723a0aa0 JD |
1542 | static const struct attribute_group it87_group_pwm[3] = { |
1543 | { .attrs = it87_attributes_pwm[0] }, | |
1544 | { .attrs = it87_attributes_pwm[1] }, | |
1545 | { .attrs = it87_attributes_pwm[2] }, | |
1546 | }; | |
1547 | ||
4f3f51bc JD |
1548 | static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
1549 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1550 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1551 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
1552 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
1553 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1554 | &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, | |
1555 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1556 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
1557 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
1558 | NULL | |
1559 | }, { | |
1560 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1561 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1562 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
1563 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
1564 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1565 | &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, | |
1566 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1567 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
1568 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
1569 | NULL | |
1570 | }, { | |
1571 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1572 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1573 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
1574 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
1575 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1576 | &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, | |
1577 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1578 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
1579 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
1580 | NULL | |
1581 | } }; | |
1582 | ||
1583 | static const struct attribute_group it87_group_autopwm[3] = { | |
1584 | { .attrs = it87_attributes_autopwm[0] }, | |
1585 | { .attrs = it87_attributes_autopwm[1] }, | |
1586 | { .attrs = it87_attributes_autopwm[2] }, | |
1587 | }; | |
1588 | ||
d9b327c3 JD |
1589 | static struct attribute *it87_attributes_fan_beep[] = { |
1590 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
1591 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
1592 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
1593 | &sensor_dev_attr_fan4_beep.dev_attr.attr, | |
1594 | &sensor_dev_attr_fan5_beep.dev_attr.attr, | |
1595 | }; | |
1596 | ||
6a8d7acf | 1597 | static struct attribute *it87_attributes_vid[] = { |
87808be4 JD |
1598 | &dev_attr_vrm.attr, |
1599 | &dev_attr_cpu0_vid.attr, | |
1600 | NULL | |
1601 | }; | |
1602 | ||
6a8d7acf JD |
1603 | static const struct attribute_group it87_group_vid = { |
1604 | .attrs = it87_attributes_vid, | |
87808be4 | 1605 | }; |
1da177e4 | 1606 | |
738e5e05 JD |
1607 | static struct attribute *it87_attributes_label[] = { |
1608 | &sensor_dev_attr_in3_label.dev_attr.attr, | |
1609 | &sensor_dev_attr_in7_label.dev_attr.attr, | |
1610 | &sensor_dev_attr_in8_label.dev_attr.attr, | |
1611 | NULL | |
1612 | }; | |
1613 | ||
1614 | static const struct attribute_group it87_group_label = { | |
fa8b6975 | 1615 | .attrs = it87_attributes_label, |
738e5e05 JD |
1616 | }; |
1617 | ||
2d8672c5 | 1618 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 1619 | static int __init it87_find(unsigned short *address, |
1620 | struct it87_sio_data *sio_data) | |
1da177e4 | 1621 | { |
5b0380c9 | 1622 | int err; |
b74f3fdd | 1623 | u16 chip_type; |
98dd22c3 | 1624 | const char *board_vendor, *board_name; |
1da177e4 | 1625 | |
5b0380c9 NG |
1626 | err = superio_enter(); |
1627 | if (err) | |
1628 | return err; | |
1629 | ||
1630 | err = -ENODEV; | |
67b671bc | 1631 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 1632 | |
1633 | switch (chip_type) { | |
1634 | case IT8705F_DEVID: | |
1635 | sio_data->type = it87; | |
1636 | break; | |
1637 | case IT8712F_DEVID: | |
1638 | sio_data->type = it8712; | |
1639 | break; | |
1640 | case IT8716F_DEVID: | |
1641 | case IT8726F_DEVID: | |
1642 | sio_data->type = it8716; | |
1643 | break; | |
1644 | case IT8718F_DEVID: | |
1645 | sio_data->type = it8718; | |
1646 | break; | |
b4da93e4 JMS |
1647 | case IT8720F_DEVID: |
1648 | sio_data->type = it8720; | |
1649 | break; | |
44c1bcd4 JD |
1650 | case IT8721F_DEVID: |
1651 | sio_data->type = it8721; | |
1652 | break; | |
16b5dda2 JD |
1653 | case IT8728F_DEVID: |
1654 | sio_data->type = it8728; | |
1655 | break; | |
0531d98b GR |
1656 | case IT8782F_DEVID: |
1657 | sio_data->type = it8782; | |
1658 | break; | |
1659 | case IT8783E_DEVID: | |
1660 | sio_data->type = it8783; | |
1661 | break; | |
b74f3fdd | 1662 | case 0xffff: /* No device at all */ |
1663 | goto exit; | |
1664 | default: | |
a8ca1037 | 1665 | pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
b74f3fdd | 1666 | goto exit; |
1667 | } | |
1da177e4 | 1668 | |
87673dd7 | 1669 | superio_select(PME); |
1da177e4 | 1670 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
a8ca1037 | 1671 | pr_info("Device not activated, skipping\n"); |
1da177e4 LT |
1672 | goto exit; |
1673 | } | |
1674 | ||
1675 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1676 | if (*address == 0) { | |
a8ca1037 | 1677 | pr_info("Base address not set, skipping\n"); |
1da177e4 LT |
1678 | goto exit; |
1679 | } | |
1680 | ||
1681 | err = 0; | |
0475169c | 1682 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
a8ca1037 | 1683 | pr_info("Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1684 | chip_type, *address, sio_data->revision); |
1da177e4 | 1685 | |
738e5e05 JD |
1686 | /* in8 (Vbat) is always internal */ |
1687 | sio_data->internal = (1 << 2); | |
1688 | ||
87673dd7 | 1689 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
895ff267 JD |
1690 | if (sio_data->type == it87) { |
1691 | /* The IT8705F doesn't have VID pins at all */ | |
1692 | sio_data->skip_vid = 1; | |
d9b327c3 JD |
1693 | |
1694 | /* The IT8705F has a different LD number for GPIO */ | |
1695 | superio_select(5); | |
1696 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
0531d98b GR |
1697 | } else if (sio_data->type == it8783) { |
1698 | int reg25, reg27, reg2A, reg2C, regEF; | |
1699 | bool uart6; | |
1700 | ||
1701 | sio_data->skip_vid = 1; /* No VID */ | |
1702 | ||
1703 | superio_select(GPIO); | |
1704 | ||
1705 | reg25 = superio_inb(IT87_SIO_GPIO1_REG); | |
1706 | reg27 = superio_inb(IT87_SIO_GPIO3_REG); | |
1707 | reg2A = superio_inb(IT87_SIO_PINX1_REG); | |
1708 | reg2C = superio_inb(IT87_SIO_PINX2_REG); | |
1709 | regEF = superio_inb(IT87_SIO_SPI_REG); | |
1710 | ||
1711 | uart6 = reg2C & (1 << 2); | |
1712 | ||
1713 | /* Check if fan3 is there or not */ | |
1714 | if ((reg27 & (1 << 0)) || !uart6) | |
1715 | sio_data->skip_fan |= (1 << 2); | |
1716 | if ((reg25 & (1 << 4)) | |
1717 | || (!(reg2A & (1 << 1)) && (regEF & (1 << 0)))) | |
1718 | sio_data->skip_pwm |= (1 << 2); | |
1719 | ||
1720 | /* Check if fan2 is there or not */ | |
1721 | if (reg27 & (1 << 7)) | |
1722 | sio_data->skip_fan |= (1 << 1); | |
1723 | if (reg27 & (1 << 3)) | |
1724 | sio_data->skip_pwm |= (1 << 1); | |
1725 | ||
1726 | /* VIN5 */ | |
1727 | if ((reg27 & (1 << 0)) || uart6) | |
1728 | ; /* No VIN5 */ | |
1729 | ||
1730 | /* VIN6 */ | |
1731 | if ((reg27 & (1 << 1)) || uart6) | |
1732 | ; /* No VIN6 */ | |
1733 | ||
1734 | /* | |
1735 | * VIN7 | |
1736 | * Does not depend on bit 2 of Reg2C, contrary to datasheet. | |
1737 | */ | |
1738 | if (reg27 & (1 << 2)) | |
1739 | ; /* No VIN7 (unless internal) */ | |
1740 | ||
1741 | if (reg2C & (1 << 0)) | |
1742 | sio_data->internal |= (1 << 0); | |
1743 | if (reg2C & (1 << 1)) | |
1744 | sio_data->internal |= (1 << 1); | |
1745 | ||
1746 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
1747 | ||
895ff267 | 1748 | } else { |
87673dd7 JD |
1749 | int reg; |
1750 | ||
1751 | superio_select(GPIO); | |
44c1bcd4 | 1752 | |
895ff267 | 1753 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
0531d98b GR |
1754 | if (sio_data->type == it8721 || sio_data->type == it8728 || |
1755 | sio_data->type == it8782) { | |
16b5dda2 | 1756 | /* |
0531d98b GR |
1757 | * IT8721F/IT8758E, and IT8782F don't have VID pins |
1758 | * at all, not sure about the IT8728F. | |
16b5dda2 | 1759 | */ |
895ff267 | 1760 | sio_data->skip_vid = 1; |
44c1bcd4 JD |
1761 | } else { |
1762 | /* We need at least 4 VID pins */ | |
1763 | if (reg & 0x0f) { | |
a8ca1037 | 1764 | pr_info("VID is disabled (pins used for GPIO)\n"); |
44c1bcd4 JD |
1765 | sio_data->skip_vid = 1; |
1766 | } | |
895ff267 JD |
1767 | } |
1768 | ||
591ec650 JD |
1769 | /* Check if fan3 is there or not */ |
1770 | if (reg & (1 << 6)) | |
1771 | sio_data->skip_pwm |= (1 << 2); | |
1772 | if (reg & (1 << 7)) | |
1773 | sio_data->skip_fan |= (1 << 2); | |
1774 | ||
1775 | /* Check if fan2 is there or not */ | |
1776 | reg = superio_inb(IT87_SIO_GPIO5_REG); | |
1777 | if (reg & (1 << 1)) | |
1778 | sio_data->skip_pwm |= (1 << 1); | |
1779 | if (reg & (1 << 2)) | |
1780 | sio_data->skip_fan |= (1 << 1); | |
1781 | ||
895ff267 JD |
1782 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1783 | && !(sio_data->skip_vid)) | |
b74f3fdd | 1784 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1785 | |
1786 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
436cad2a JD |
1787 | /* |
1788 | * The IT8720F has no VIN7 pin, so VCCH should always be | |
1789 | * routed internally to VIN7 with an internal divider. | |
1790 | * Curiously, there still is a configuration bit to control | |
1791 | * this, which means it can be set incorrectly. And even | |
1792 | * more curiously, many boards out there are improperly | |
1793 | * configured, even though the IT8720F datasheet claims | |
1794 | * that the internal routing of VCCH to VIN7 is the default | |
1795 | * setting. So we force the internal routing in this case. | |
0531d98b GR |
1796 | * |
1797 | * On IT8782F, VIN7 is multiplexed with one of the UART6 pins. | |
1798 | * If UART6 is enabled, re-route VIN7 to the internal divider. | |
436cad2a | 1799 | */ |
0531d98b GR |
1800 | if ((sio_data->type == it8720 || |
1801 | (sio_data->type == it8782 && (reg & (1 << 2)))) | |
1802 | && !(reg & (1 << 1))) { | |
436cad2a JD |
1803 | reg |= (1 << 1); |
1804 | superio_outb(IT87_SIO_PINX2_REG, reg); | |
a8ca1037 | 1805 | pr_notice("Routing internal VCCH to in7\n"); |
436cad2a | 1806 | } |
87673dd7 | 1807 | if (reg & (1 << 0)) |
738e5e05 | 1808 | sio_data->internal |= (1 << 0); |
16b5dda2 JD |
1809 | if ((reg & (1 << 1)) || sio_data->type == it8721 || |
1810 | sio_data->type == it8728) | |
738e5e05 | 1811 | sio_data->internal |= (1 << 1); |
d9b327c3 JD |
1812 | |
1813 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
87673dd7 | 1814 | } |
d9b327c3 | 1815 | if (sio_data->beep_pin) |
a8ca1037 | 1816 | pr_info("Beeping is supported\n"); |
87673dd7 | 1817 | |
98dd22c3 JD |
1818 | /* Disable specific features based on DMI strings */ |
1819 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1820 | board_name = dmi_get_system_info(DMI_BOARD_NAME); | |
1821 | if (board_vendor && board_name) { | |
1822 | if (strcmp(board_vendor, "nVIDIA") == 0 | |
1823 | && strcmp(board_name, "FN68PT") == 0) { | |
4a0d71cf GR |
1824 | /* |
1825 | * On the Shuttle SN68PT, FAN_CTL2 is apparently not | |
1826 | * connected to a fan, but to something else. One user | |
1827 | * has reported instant system power-off when changing | |
1828 | * the PWM2 duty cycle, so we disable it. | |
1829 | * I use the board name string as the trigger in case | |
1830 | * the same board is ever used in other systems. | |
1831 | */ | |
a8ca1037 | 1832 | pr_info("Disabling pwm2 due to hardware constraints\n"); |
98dd22c3 JD |
1833 | sio_data->skip_pwm = (1 << 1); |
1834 | } | |
1835 | } | |
1836 | ||
1da177e4 LT |
1837 | exit: |
1838 | superio_exit(); | |
1839 | return err; | |
1840 | } | |
1841 | ||
723a0aa0 JD |
1842 | static void it87_remove_files(struct device *dev) |
1843 | { | |
1844 | struct it87_data *data = platform_get_drvdata(pdev); | |
1845 | struct it87_sio_data *sio_data = dev->platform_data; | |
1846 | const struct attribute_group *fan_group = it87_get_fan_group(data); | |
1847 | int i; | |
1848 | ||
1849 | sysfs_remove_group(&dev->kobj, &it87_group); | |
d9b327c3 JD |
1850 | if (sio_data->beep_pin) |
1851 | sysfs_remove_group(&dev->kobj, &it87_group_beep); | |
723a0aa0 JD |
1852 | for (i = 0; i < 5; i++) { |
1853 | if (!(data->has_fan & (1 << i))) | |
1854 | continue; | |
1855 | sysfs_remove_group(&dev->kobj, &fan_group[i]); | |
d9b327c3 JD |
1856 | if (sio_data->beep_pin) |
1857 | sysfs_remove_file(&dev->kobj, | |
1858 | it87_attributes_fan_beep[i]); | |
723a0aa0 JD |
1859 | } |
1860 | for (i = 0; i < 3; i++) { | |
1861 | if (sio_data->skip_pwm & (1 << 0)) | |
1862 | continue; | |
1863 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); | |
4f3f51bc JD |
1864 | if (has_old_autopwm(data)) |
1865 | sysfs_remove_group(&dev->kobj, | |
1866 | &it87_group_autopwm[i]); | |
723a0aa0 | 1867 | } |
6a8d7acf JD |
1868 | if (!sio_data->skip_vid) |
1869 | sysfs_remove_group(&dev->kobj, &it87_group_vid); | |
738e5e05 | 1870 | sysfs_remove_group(&dev->kobj, &it87_group_label); |
723a0aa0 JD |
1871 | } |
1872 | ||
b74f3fdd | 1873 | static int __devinit it87_probe(struct platform_device *pdev) |
1da177e4 | 1874 | { |
1da177e4 | 1875 | struct it87_data *data; |
b74f3fdd | 1876 | struct resource *res; |
1877 | struct device *dev = &pdev->dev; | |
1878 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 JD |
1879 | const struct attribute_group *fan_group; |
1880 | int err = 0, i; | |
1da177e4 | 1881 | int enable_pwm_interface; |
d9b327c3 | 1882 | int fan_beep_need_rw; |
3c4c4971 | 1883 | static const char * const names[] = { |
b74f3fdd | 1884 | "it87", |
1885 | "it8712", | |
1886 | "it8716", | |
1887 | "it8718", | |
b4da93e4 | 1888 | "it8720", |
44c1bcd4 | 1889 | "it8721", |
16b5dda2 | 1890 | "it8728", |
0531d98b GR |
1891 | "it8782", |
1892 | "it8783", | |
b74f3fdd | 1893 | }; |
1894 | ||
1895 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
87b4b663 | 1896 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
b74f3fdd | 1897 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1898 | (unsigned long)res->start, | |
87b4b663 | 1899 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
8e9afcbb JD |
1900 | err = -EBUSY; |
1901 | goto ERROR0; | |
1902 | } | |
1da177e4 | 1903 | |
5f2dc798 JD |
1904 | data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); |
1905 | if (!data) { | |
1da177e4 LT |
1906 | err = -ENOMEM; |
1907 | goto ERROR1; | |
1908 | } | |
1da177e4 | 1909 | |
b74f3fdd | 1910 | data->addr = res->start; |
1911 | data->type = sio_data->type; | |
0475169c | 1912 | data->revision = sio_data->revision; |
b74f3fdd | 1913 | data->name = names[sio_data->type]; |
1da177e4 LT |
1914 | |
1915 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 1916 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
1917 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { | |
8e9afcbb JD |
1918 | err = -ENODEV; |
1919 | goto ERROR2; | |
1da177e4 LT |
1920 | } |
1921 | ||
b74f3fdd | 1922 | platform_set_drvdata(pdev, data); |
1da177e4 | 1923 | |
9a61bf63 | 1924 | mutex_init(&data->update_lock); |
1da177e4 | 1925 | |
1da177e4 | 1926 | /* Check PWM configuration */ |
b74f3fdd | 1927 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 | 1928 | |
44c1bcd4 | 1929 | /* Starting with IT8721F, we handle scaling of internal voltages */ |
16b5dda2 | 1930 | if (has_12mv_adc(data)) { |
44c1bcd4 JD |
1931 | if (sio_data->internal & (1 << 0)) |
1932 | data->in_scaled |= (1 << 3); /* in3 is AVCC */ | |
1933 | if (sio_data->internal & (1 << 1)) | |
1934 | data->in_scaled |= (1 << 7); /* in7 is VSB */ | |
1935 | if (sio_data->internal & (1 << 2)) | |
1936 | data->in_scaled |= (1 << 8); /* in8 is Vbat */ | |
0531d98b GR |
1937 | } else if (sio_data->type == it8782 || sio_data->type == it8783) { |
1938 | if (sio_data->internal & (1 << 0)) | |
1939 | data->in_scaled |= (1 << 3); /* in3 is VCC5V */ | |
1940 | if (sio_data->internal & (1 << 1)) | |
1941 | data->in_scaled |= (1 << 7); /* in7 is VCCH5V */ | |
44c1bcd4 JD |
1942 | } |
1943 | ||
1da177e4 | 1944 | /* Initialize the IT87 chip */ |
b74f3fdd | 1945 | it87_init_device(pdev); |
1da177e4 LT |
1946 | |
1947 | /* Register sysfs hooks */ | |
5f2dc798 JD |
1948 | err = sysfs_create_group(&dev->kobj, &it87_group); |
1949 | if (err) | |
b74f3fdd | 1950 | goto ERROR2; |
17d648bf | 1951 | |
d9b327c3 JD |
1952 | if (sio_data->beep_pin) { |
1953 | err = sysfs_create_group(&dev->kobj, &it87_group_beep); | |
1954 | if (err) | |
1955 | goto ERROR4; | |
1956 | } | |
1957 | ||
9060f8bd | 1958 | /* Do not create fan files for disabled fans */ |
723a0aa0 | 1959 | fan_group = it87_get_fan_group(data); |
d9b327c3 | 1960 | fan_beep_need_rw = 1; |
723a0aa0 JD |
1961 | for (i = 0; i < 5; i++) { |
1962 | if (!(data->has_fan & (1 << i))) | |
1963 | continue; | |
1964 | err = sysfs_create_group(&dev->kobj, &fan_group[i]); | |
1965 | if (err) | |
1966 | goto ERROR4; | |
d9b327c3 JD |
1967 | |
1968 | if (sio_data->beep_pin) { | |
1969 | err = sysfs_create_file(&dev->kobj, | |
1970 | it87_attributes_fan_beep[i]); | |
1971 | if (err) | |
1972 | goto ERROR4; | |
1973 | if (!fan_beep_need_rw) | |
1974 | continue; | |
1975 | ||
4a0d71cf GR |
1976 | /* |
1977 | * As we have a single beep enable bit for all fans, | |
d9b327c3 | 1978 | * only the first enabled fan has a writable attribute |
4a0d71cf GR |
1979 | * for it. |
1980 | */ | |
d9b327c3 JD |
1981 | if (sysfs_chmod_file(&dev->kobj, |
1982 | it87_attributes_fan_beep[i], | |
1983 | S_IRUGO | S_IWUSR)) | |
1984 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", | |
1985 | i + 1); | |
1986 | fan_beep_need_rw = 0; | |
1987 | } | |
17d648bf JD |
1988 | } |
1989 | ||
1da177e4 | 1990 | if (enable_pwm_interface) { |
723a0aa0 JD |
1991 | for (i = 0; i < 3; i++) { |
1992 | if (sio_data->skip_pwm & (1 << i)) | |
1993 | continue; | |
1994 | err = sysfs_create_group(&dev->kobj, | |
1995 | &it87_group_pwm[i]); | |
1996 | if (err) | |
98dd22c3 | 1997 | goto ERROR4; |
4f3f51bc JD |
1998 | |
1999 | if (!has_old_autopwm(data)) | |
2000 | continue; | |
2001 | err = sysfs_create_group(&dev->kobj, | |
2002 | &it87_group_autopwm[i]); | |
2003 | if (err) | |
2004 | goto ERROR4; | |
98dd22c3 | 2005 | } |
1da177e4 LT |
2006 | } |
2007 | ||
895ff267 | 2008 | if (!sio_data->skip_vid) { |
303760b4 | 2009 | data->vrm = vid_which_vrm(); |
87673dd7 | 2010 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 2011 | data->vid = sio_data->vid_value; |
6a8d7acf JD |
2012 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
2013 | if (err) | |
87808be4 JD |
2014 | goto ERROR4; |
2015 | } | |
2016 | ||
738e5e05 JD |
2017 | /* Export labels for internal sensors */ |
2018 | for (i = 0; i < 3; i++) { | |
2019 | if (!(sio_data->internal & (1 << i))) | |
2020 | continue; | |
2021 | err = sysfs_create_file(&dev->kobj, | |
2022 | it87_attributes_label[i]); | |
2023 | if (err) | |
2024 | goto ERROR4; | |
2025 | } | |
2026 | ||
1beeffe4 TJ |
2027 | data->hwmon_dev = hwmon_device_register(dev); |
2028 | if (IS_ERR(data->hwmon_dev)) { | |
2029 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 | 2030 | goto ERROR4; |
1da177e4 LT |
2031 | } |
2032 | ||
2033 | return 0; | |
2034 | ||
87808be4 | 2035 | ERROR4: |
723a0aa0 | 2036 | it87_remove_files(dev); |
1da177e4 | 2037 | ERROR2: |
b74f3fdd | 2038 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
2039 | kfree(data); |
2040 | ERROR1: | |
87b4b663 | 2041 | release_region(res->start, IT87_EC_EXTENT); |
1da177e4 LT |
2042 | ERROR0: |
2043 | return err; | |
2044 | } | |
2045 | ||
b74f3fdd | 2046 | static int __devexit it87_remove(struct platform_device *pdev) |
1da177e4 | 2047 | { |
b74f3fdd | 2048 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2049 | |
1beeffe4 | 2050 | hwmon_device_unregister(data->hwmon_dev); |
723a0aa0 | 2051 | it87_remove_files(&pdev->dev); |
943b0830 | 2052 | |
87b4b663 | 2053 | release_region(data->addr, IT87_EC_EXTENT); |
b74f3fdd | 2054 | platform_set_drvdata(pdev, NULL); |
943b0830 | 2055 | kfree(data); |
1da177e4 LT |
2056 | |
2057 | return 0; | |
2058 | } | |
2059 | ||
4a0d71cf GR |
2060 | /* |
2061 | * Must be called with data->update_lock held, except during initialization. | |
2062 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, | |
2063 | * would slow down the IT87 access and should not be necessary. | |
2064 | */ | |
b74f3fdd | 2065 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 2066 | { |
b74f3fdd | 2067 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2068 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
2069 | } |
2070 | ||
4a0d71cf GR |
2071 | /* |
2072 | * Must be called with data->update_lock held, except during initialization. | |
2073 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, | |
2074 | * would slow down the IT87 access and should not be necessary. | |
2075 | */ | |
b74f3fdd | 2076 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 2077 | { |
b74f3fdd | 2078 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2079 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
2080 | } |
2081 | ||
2082 | /* Return 1 if and only if the PWM interface is safe to use */ | |
b74f3fdd | 2083 | static int __devinit it87_check_pwm(struct device *dev) |
1da177e4 | 2084 | { |
b74f3fdd | 2085 | struct it87_data *data = dev_get_drvdata(dev); |
4a0d71cf GR |
2086 | /* |
2087 | * Some BIOSes fail to correctly configure the IT87 fans. All fans off | |
1da177e4 | 2088 | * and polarity set to active low is sign that this is the case so we |
4a0d71cf GR |
2089 | * disable pwm control to protect the user. |
2090 | */ | |
b74f3fdd | 2091 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
2092 | if ((tmp & 0x87) == 0) { |
2093 | if (fix_pwm_polarity) { | |
4a0d71cf GR |
2094 | /* |
2095 | * The user asks us to attempt a chip reconfiguration. | |
1da177e4 | 2096 | * This means switching to active high polarity and |
4a0d71cf GR |
2097 | * inverting all fan speed values. |
2098 | */ | |
1da177e4 LT |
2099 | int i; |
2100 | u8 pwm[3]; | |
2101 | ||
2102 | for (i = 0; i < 3; i++) | |
b74f3fdd | 2103 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
2104 | IT87_REG_PWM(i)); |
2105 | ||
4a0d71cf GR |
2106 | /* |
2107 | * If any fan is in automatic pwm mode, the polarity | |
1da177e4 LT |
2108 | * might be correct, as suspicious as it seems, so we |
2109 | * better don't change anything (but still disable the | |
4a0d71cf GR |
2110 | * PWM interface). |
2111 | */ | |
1da177e4 | 2112 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { |
b74f3fdd | 2113 | dev_info(dev, "Reconfiguring PWM to " |
1da177e4 | 2114 | "active high polarity\n"); |
b74f3fdd | 2115 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
2116 | tmp | 0x87); |
2117 | for (i = 0; i < 3; i++) | |
b74f3fdd | 2118 | it87_write_value(data, |
1da177e4 LT |
2119 | IT87_REG_PWM(i), |
2120 | 0x7f & ~pwm[i]); | |
2121 | return 1; | |
2122 | } | |
2123 | ||
b74f3fdd | 2124 | dev_info(dev, "PWM configuration is " |
1da177e4 LT |
2125 | "too broken to be fixed\n"); |
2126 | } | |
2127 | ||
b74f3fdd | 2128 | dev_info(dev, "Detected broken BIOS " |
1da177e4 LT |
2129 | "defaults, disabling PWM interface\n"); |
2130 | return 0; | |
2131 | } else if (fix_pwm_polarity) { | |
b74f3fdd | 2132 | dev_info(dev, "PWM configuration looks " |
1da177e4 LT |
2133 | "sane, won't touch\n"); |
2134 | } | |
2135 | ||
2136 | return 1; | |
2137 | } | |
2138 | ||
2139 | /* Called when we have found a new IT87. */ | |
b74f3fdd | 2140 | static void __devinit it87_init_device(struct platform_device *pdev) |
1da177e4 | 2141 | { |
591ec650 | 2142 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
b74f3fdd | 2143 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2144 | int tmp, i; |
591ec650 | 2145 | u8 mask; |
1da177e4 | 2146 | |
4a0d71cf GR |
2147 | /* |
2148 | * For each PWM channel: | |
b99883dc JD |
2149 | * - If it is in automatic mode, setting to manual mode should set |
2150 | * the fan to full speed by default. | |
2151 | * - If it is in manual mode, we need a mapping to temperature | |
2152 | * channels to use when later setting to automatic mode later. | |
2153 | * Use a 1:1 mapping by default (we are clueless.) | |
2154 | * In both cases, the value can (and should) be changed by the user | |
6229cdb2 JD |
2155 | * prior to switching to a different mode. |
2156 | * Note that this is no longer needed for the IT8721F and later, as | |
2157 | * these have separate registers for the temperature mapping and the | |
4a0d71cf GR |
2158 | * manual duty cycle. |
2159 | */ | |
1da177e4 | 2160 | for (i = 0; i < 3; i++) { |
b99883dc JD |
2161 | data->pwm_temp_map[i] = i; |
2162 | data->pwm_duty[i] = 0x7f; /* Full speed */ | |
4f3f51bc | 2163 | data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
1da177e4 LT |
2164 | } |
2165 | ||
4a0d71cf GR |
2166 | /* |
2167 | * Some chips seem to have default value 0xff for all limit | |
c5df9b7a JD |
2168 | * registers. For low voltage limits it makes no sense and triggers |
2169 | * alarms, so change to 0 instead. For high temperature limits, it | |
2170 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
4a0d71cf GR |
2171 | * but is still confusing, so change to 127 degrees C. |
2172 | */ | |
c5df9b7a | 2173 | for (i = 0; i < 8; i++) { |
b74f3fdd | 2174 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 2175 | if (tmp == 0xff) |
b74f3fdd | 2176 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
2177 | } |
2178 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 2179 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 2180 | if (tmp == 0xff) |
b74f3fdd | 2181 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
2182 | } |
2183 | ||
4a0d71cf GR |
2184 | /* |
2185 | * Temperature channels are not forcibly enabled, as they can be | |
a00afb97 JD |
2186 | * set to two different sensor types and we can't guess which one |
2187 | * is correct for a given system. These channels can be enabled at | |
4a0d71cf GR |
2188 | * run-time through the temp{1-3}_type sysfs accessors if needed. |
2189 | */ | |
1da177e4 LT |
2190 | |
2191 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 2192 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
2193 | if ((tmp & 0xff) == 0) { |
2194 | /* Enable all voltage monitors */ | |
b74f3fdd | 2195 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
2196 | } |
2197 | ||
2198 | /* Check if tachometers are reset manually or by some reason */ | |
591ec650 | 2199 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
b74f3fdd | 2200 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
591ec650 | 2201 | if ((data->fan_main_ctrl & mask) == 0) { |
1da177e4 | 2202 | /* Enable all fan tachometers */ |
591ec650 | 2203 | data->fan_main_ctrl |= mask; |
5f2dc798 JD |
2204 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
2205 | data->fan_main_ctrl); | |
1da177e4 | 2206 | } |
9060f8bd | 2207 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 2208 | |
17d648bf | 2209 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 2210 | if (has_16bit_fans(data)) { |
b74f3fdd | 2211 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 2212 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 2213 | dev_dbg(&pdev->dev, |
17d648bf | 2214 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 2215 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
2216 | tmp | 0x07); |
2217 | } | |
0531d98b GR |
2218 | /* IT8705F, IT8782F, and IT8783E/F only support three fans. */ |
2219 | if (data->type != it87 && data->type != it8782 && | |
2220 | data->type != it8783) { | |
816d8c6a AP |
2221 | if (tmp & (1 << 4)) |
2222 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
2223 | if (tmp & (1 << 5)) | |
2224 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
2225 | } | |
17d648bf JD |
2226 | } |
2227 | ||
591ec650 JD |
2228 | /* Fan input pins may be used for alternative functions */ |
2229 | data->has_fan &= ~sio_data->skip_fan; | |
2230 | ||
1da177e4 | 2231 | /* Start monitoring */ |
b74f3fdd | 2232 | it87_write_value(data, IT87_REG_CONFIG, |
2233 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | |
1da177e4 LT |
2234 | | (update_vbat ? 0x41 : 0x01)); |
2235 | } | |
2236 | ||
b99883dc JD |
2237 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
2238 | { | |
2239 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); | |
16b5dda2 | 2240 | if (has_newer_autopwm(data)) { |
b99883dc | 2241 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
6229cdb2 JD |
2242 | data->pwm_duty[nr] = it87_read_value(data, |
2243 | IT87_REG_PWM_DUTY(nr)); | |
2244 | } else { | |
2245 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
2246 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; | |
2247 | else /* Manual mode */ | |
2248 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; | |
2249 | } | |
4f3f51bc JD |
2250 | |
2251 | if (has_old_autopwm(data)) { | |
2252 | int i; | |
2253 | ||
2254 | for (i = 0; i < 5 ; i++) | |
2255 | data->auto_temp[nr][i] = it87_read_value(data, | |
2256 | IT87_REG_AUTO_TEMP(nr, i)); | |
2257 | for (i = 0; i < 3 ; i++) | |
2258 | data->auto_pwm[nr][i] = it87_read_value(data, | |
2259 | IT87_REG_AUTO_PWM(nr, i)); | |
2260 | } | |
b99883dc JD |
2261 | } |
2262 | ||
1da177e4 LT |
2263 | static struct it87_data *it87_update_device(struct device *dev) |
2264 | { | |
b74f3fdd | 2265 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
2266 | int i; |
2267 | ||
9a61bf63 | 2268 | mutex_lock(&data->update_lock); |
1da177e4 LT |
2269 | |
2270 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
2271 | || !data->valid) { | |
1da177e4 | 2272 | if (update_vbat) { |
4a0d71cf GR |
2273 | /* |
2274 | * Cleared after each update, so reenable. Value | |
2275 | * returned by this read will be previous value | |
2276 | */ | |
b74f3fdd | 2277 | it87_write_value(data, IT87_REG_CONFIG, |
5f2dc798 | 2278 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
1da177e4 LT |
2279 | } |
2280 | for (i = 0; i <= 7; i++) { | |
2281 | data->in[i] = | |
5f2dc798 | 2282 | it87_read_value(data, IT87_REG_VIN(i)); |
1da177e4 | 2283 | data->in_min[i] = |
5f2dc798 | 2284 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
1da177e4 | 2285 | data->in_max[i] = |
5f2dc798 | 2286 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 2287 | } |
3543a53f | 2288 | /* in8 (battery) has no limit registers */ |
5f2dc798 | 2289 | data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 2290 | |
c7f1f716 | 2291 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
2292 | /* Skip disabled fans */ |
2293 | if (!(data->has_fan & (1 << i))) | |
2294 | continue; | |
2295 | ||
1da177e4 | 2296 | data->fan_min[i] = |
5f2dc798 | 2297 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
b74f3fdd | 2298 | data->fan[i] = it87_read_value(data, |
c7f1f716 | 2299 | IT87_REG_FAN[i]); |
17d648bf | 2300 | /* Add high byte if in 16-bit mode */ |
0475169c | 2301 | if (has_16bit_fans(data)) { |
b74f3fdd | 2302 | data->fan[i] |= it87_read_value(data, |
c7f1f716 | 2303 | IT87_REG_FANX[i]) << 8; |
b74f3fdd | 2304 | data->fan_min[i] |= it87_read_value(data, |
c7f1f716 | 2305 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 2306 | } |
1da177e4 LT |
2307 | } |
2308 | for (i = 0; i < 3; i++) { | |
2309 | data->temp[i] = | |
5f2dc798 | 2310 | it87_read_value(data, IT87_REG_TEMP(i)); |
1da177e4 | 2311 | data->temp_high[i] = |
5f2dc798 | 2312 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
1da177e4 | 2313 | data->temp_low[i] = |
5f2dc798 | 2314 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
1da177e4 LT |
2315 | } |
2316 | ||
17d648bf | 2317 | /* Newer chips don't have clock dividers */ |
0475169c | 2318 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 2319 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
2320 | data->fan_div[0] = i & 0x07; |
2321 | data->fan_div[1] = (i >> 3) & 0x07; | |
2322 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
2323 | } | |
1da177e4 LT |
2324 | |
2325 | data->alarms = | |
b74f3fdd | 2326 | it87_read_value(data, IT87_REG_ALARM1) | |
2327 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
2328 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
d9b327c3 | 2329 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
b99883dc | 2330 | |
b74f3fdd | 2331 | data->fan_main_ctrl = it87_read_value(data, |
2332 | IT87_REG_FAN_MAIN_CTRL); | |
2333 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
b99883dc JD |
2334 | for (i = 0; i < 3; i++) |
2335 | it87_update_pwm_ctrl(data, i); | |
b74f3fdd | 2336 | |
2337 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
4a0d71cf GR |
2338 | /* |
2339 | * The IT8705F does not have VID capability. | |
2340 | * The IT8718F and later don't use IT87_REG_VID for the | |
2341 | * same purpose. | |
2342 | */ | |
17d648bf | 2343 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 2344 | data->vid = it87_read_value(data, IT87_REG_VID); |
4a0d71cf GR |
2345 | /* |
2346 | * The older IT8712F revisions had only 5 VID pins, | |
2347 | * but we assume it is always safe to read 6 bits. | |
2348 | */ | |
17d648bf | 2349 | data->vid &= 0x3f; |
1da177e4 LT |
2350 | } |
2351 | data->last_updated = jiffies; | |
2352 | data->valid = 1; | |
2353 | } | |
2354 | ||
9a61bf63 | 2355 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
2356 | |
2357 | return data; | |
2358 | } | |
2359 | ||
b74f3fdd | 2360 | static int __init it87_device_add(unsigned short address, |
2361 | const struct it87_sio_data *sio_data) | |
2362 | { | |
2363 | struct resource res = { | |
87b4b663 BH |
2364 | .start = address + IT87_EC_OFFSET, |
2365 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 2366 | .name = DRVNAME, |
2367 | .flags = IORESOURCE_IO, | |
2368 | }; | |
2369 | int err; | |
2370 | ||
b9acb64a JD |
2371 | err = acpi_check_resource_conflict(&res); |
2372 | if (err) | |
2373 | goto exit; | |
2374 | ||
b74f3fdd | 2375 | pdev = platform_device_alloc(DRVNAME, address); |
2376 | if (!pdev) { | |
2377 | err = -ENOMEM; | |
a8ca1037 | 2378 | pr_err("Device allocation failed\n"); |
b74f3fdd | 2379 | goto exit; |
2380 | } | |
2381 | ||
2382 | err = platform_device_add_resources(pdev, &res, 1); | |
2383 | if (err) { | |
a8ca1037 | 2384 | pr_err("Device resource addition failed (%d)\n", err); |
b74f3fdd | 2385 | goto exit_device_put; |
2386 | } | |
2387 | ||
2388 | err = platform_device_add_data(pdev, sio_data, | |
2389 | sizeof(struct it87_sio_data)); | |
2390 | if (err) { | |
a8ca1037 | 2391 | pr_err("Platform data allocation failed\n"); |
b74f3fdd | 2392 | goto exit_device_put; |
2393 | } | |
2394 | ||
2395 | err = platform_device_add(pdev); | |
2396 | if (err) { | |
a8ca1037 | 2397 | pr_err("Device addition failed (%d)\n", err); |
b74f3fdd | 2398 | goto exit_device_put; |
2399 | } | |
2400 | ||
2401 | return 0; | |
2402 | ||
2403 | exit_device_put: | |
2404 | platform_device_put(pdev); | |
2405 | exit: | |
2406 | return err; | |
2407 | } | |
2408 | ||
1da177e4 LT |
2409 | static int __init sm_it87_init(void) |
2410 | { | |
b74f3fdd | 2411 | int err; |
5f2dc798 | 2412 | unsigned short isa_address = 0; |
b74f3fdd | 2413 | struct it87_sio_data sio_data; |
2414 | ||
98dd22c3 | 2415 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
b74f3fdd | 2416 | err = it87_find(&isa_address, &sio_data); |
2417 | if (err) | |
2418 | return err; | |
2419 | err = platform_driver_register(&it87_driver); | |
2420 | if (err) | |
2421 | return err; | |
fde09509 | 2422 | |
b74f3fdd | 2423 | err = it87_device_add(isa_address, &sio_data); |
5f2dc798 | 2424 | if (err) { |
b74f3fdd | 2425 | platform_driver_unregister(&it87_driver); |
2426 | return err; | |
2427 | } | |
2428 | ||
2429 | return 0; | |
1da177e4 LT |
2430 | } |
2431 | ||
2432 | static void __exit sm_it87_exit(void) | |
2433 | { | |
b74f3fdd | 2434 | platform_device_unregister(pdev); |
2435 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
2436 | } |
2437 | ||
2438 | ||
f1d8e332 | 2439 | MODULE_AUTHOR("Chris Gauthron, " |
b19367c6 | 2440 | "Jean Delvare <khali@linux-fr.org>"); |
44c1bcd4 | 2441 | MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); |
1da177e4 LT |
2442 | module_param(update_vbat, bool, 0); |
2443 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
2444 | module_param(fix_pwm_polarity, bool, 0); | |
5f2dc798 JD |
2445 | MODULE_PARM_DESC(fix_pwm_polarity, |
2446 | "Force PWM polarity to active high (DANGEROUS)"); | |
1da177e4 LT |
2447 | MODULE_LICENSE("GPL"); |
2448 | ||
2449 | module_init(sm_it87_init); | |
2450 | module_exit(sm_it87_exit); |