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 }; | |
161d898a GR |
206 | static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 }; |
207 | ||
1da177e4 LT |
208 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
209 | #define IT87_REG_FAN_CTL 0x14 | |
210 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
6229cdb2 | 211 | #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
1da177e4 LT |
212 | |
213 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
214 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
215 | ||
216 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
217 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
218 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
219 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
220 | ||
1da177e4 LT |
221 | #define IT87_REG_VIN_ENABLE 0x50 |
222 | #define IT87_REG_TEMP_ENABLE 0x51 | |
4573acbc | 223 | #define IT87_REG_TEMP_EXTRA 0x55 |
d9b327c3 | 224 | #define IT87_REG_BEEP_ENABLE 0x5c |
1da177e4 LT |
225 | |
226 | #define IT87_REG_CHIPID 0x58 | |
227 | ||
4f3f51bc JD |
228 | #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
229 | #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) | |
230 | ||
483db43e GR |
231 | struct it87_devices { |
232 | const char *name; | |
233 | u16 features; | |
19529784 GR |
234 | u8 peci_mask; |
235 | u8 old_peci_mask; | |
483db43e GR |
236 | }; |
237 | ||
238 | #define FEAT_12MV_ADC (1 << 0) | |
239 | #define FEAT_NEWER_AUTOPWM (1 << 1) | |
240 | #define FEAT_OLD_AUTOPWM (1 << 2) | |
241 | #define FEAT_16BIT_FANS (1 << 3) | |
242 | #define FEAT_TEMP_OFFSET (1 << 4) | |
5d8d2f2b | 243 | #define FEAT_TEMP_PECI (1 << 5) |
19529784 | 244 | #define FEAT_TEMP_OLD_PECI (1 << 6) |
483db43e GR |
245 | |
246 | static const struct it87_devices it87_devices[] = { | |
247 | [it87] = { | |
248 | .name = "it87", | |
249 | .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */ | |
250 | }, | |
251 | [it8712] = { | |
252 | .name = "it8712", | |
253 | .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */ | |
254 | }, | |
255 | [it8716] = { | |
256 | .name = "it8716", | |
257 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET, | |
258 | }, | |
259 | [it8718] = { | |
260 | .name = "it8718", | |
19529784 GR |
261 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
262 | | FEAT_TEMP_OLD_PECI, | |
263 | .old_peci_mask = 0x4, | |
483db43e GR |
264 | }, |
265 | [it8720] = { | |
266 | .name = "it8720", | |
19529784 GR |
267 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
268 | | FEAT_TEMP_OLD_PECI, | |
269 | .old_peci_mask = 0x4, | |
483db43e GR |
270 | }, |
271 | [it8721] = { | |
272 | .name = "it8721", | |
273 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | |
19529784 | 274 | | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI, |
5d8d2f2b | 275 | .peci_mask = 0x05, |
19529784 | 276 | .old_peci_mask = 0x02, /* Actually reports PCH */ |
483db43e GR |
277 | }, |
278 | [it8728] = { | |
279 | .name = "it8728", | |
280 | .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | |
5d8d2f2b GR |
281 | | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, |
282 | .peci_mask = 0x07, | |
483db43e GR |
283 | }, |
284 | [it8782] = { | |
285 | .name = "it8782", | |
19529784 GR |
286 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
287 | | FEAT_TEMP_OLD_PECI, | |
288 | .old_peci_mask = 0x4, | |
483db43e GR |
289 | }, |
290 | [it8783] = { | |
291 | .name = "it8783", | |
19529784 GR |
292 | .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
293 | | FEAT_TEMP_OLD_PECI, | |
294 | .old_peci_mask = 0x4, | |
483db43e GR |
295 | }, |
296 | }; | |
297 | ||
298 | #define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS) | |
299 | #define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC) | |
300 | #define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM) | |
301 | #define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM) | |
302 | #define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET) | |
5d8d2f2b GR |
303 | #define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \ |
304 | ((data)->peci_mask & (1 << nr))) | |
19529784 GR |
305 | #define has_temp_old_peci(data, nr) \ |
306 | (((data)->features & FEAT_TEMP_OLD_PECI) && \ | |
307 | ((data)->old_peci_mask & (1 << nr))) | |
1da177e4 | 308 | |
b74f3fdd | 309 | struct it87_sio_data { |
310 | enum chips type; | |
311 | /* Values read from Super-I/O config space */ | |
0475169c | 312 | u8 revision; |
b74f3fdd | 313 | u8 vid_value; |
d9b327c3 | 314 | u8 beep_pin; |
738e5e05 | 315 | u8 internal; /* Internal sensors can be labeled */ |
591ec650 | 316 | /* Features skipped based on config or DMI */ |
9172b5d1 | 317 | u16 skip_in; |
895ff267 | 318 | u8 skip_vid; |
591ec650 | 319 | u8 skip_fan; |
98dd22c3 | 320 | u8 skip_pwm; |
4573acbc | 321 | u8 skip_temp; |
b74f3fdd | 322 | }; |
323 | ||
4a0d71cf GR |
324 | /* |
325 | * For each registered chip, we need to keep some data in memory. | |
326 | * The structure is dynamically allocated. | |
327 | */ | |
1da177e4 | 328 | struct it87_data { |
1beeffe4 | 329 | struct device *hwmon_dev; |
1da177e4 | 330 | enum chips type; |
483db43e | 331 | u16 features; |
19529784 GR |
332 | u8 peci_mask; |
333 | u8 old_peci_mask; | |
1da177e4 | 334 | |
b74f3fdd | 335 | unsigned short addr; |
336 | const char *name; | |
9a61bf63 | 337 | struct mutex update_lock; |
1da177e4 LT |
338 | char valid; /* !=0 if following fields are valid */ |
339 | unsigned long last_updated; /* In jiffies */ | |
340 | ||
44c1bcd4 | 341 | u16 in_scaled; /* Internal voltage sensors are scaled */ |
929c6a56 | 342 | u8 in[9][3]; /* [nr][0]=in, [1]=min, [2]=max */ |
9060f8bd | 343 | u8 has_fan; /* Bitfield, fans enabled */ |
e1169ba0 | 344 | u16 fan[5][2]; /* Register values, [nr][0]=fan, [1]=min */ |
4573acbc | 345 | u8 has_temp; /* Bitfield, temp sensors enabled */ |
161d898a | 346 | s8 temp[3][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */ |
19529784 GR |
347 | u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */ |
348 | u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */ | |
1da177e4 LT |
349 | u8 fan_div[3]; /* Register encoding, shifted right */ |
350 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 351 | u8 vrm; |
1da177e4 | 352 | u32 alarms; /* Register encoding, combined */ |
d9b327c3 | 353 | u8 beeps; /* Register encoding */ |
1da177e4 | 354 | u8 fan_main_ctrl; /* Register value */ |
f8d0c19a | 355 | u8 fan_ctl; /* Register value */ |
b99883dc | 356 | |
4a0d71cf GR |
357 | /* |
358 | * The following 3 arrays correspond to the same registers up to | |
6229cdb2 JD |
359 | * the IT8720F. The meaning of bits 6-0 depends on the value of bit |
360 | * 7, and we want to preserve settings on mode changes, so we have | |
361 | * to track all values separately. | |
362 | * Starting with the IT8721F, the manual PWM duty cycles are stored | |
363 | * in separate registers (8-bit values), so the separate tracking | |
364 | * is no longer needed, but it is still done to keep the driver | |
4a0d71cf GR |
365 | * simple. |
366 | */ | |
b99883dc | 367 | u8 pwm_ctrl[3]; /* Register value */ |
6229cdb2 | 368 | u8 pwm_duty[3]; /* Manual PWM value set by user */ |
b99883dc | 369 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
4f3f51bc JD |
370 | |
371 | /* Automatic fan speed control registers */ | |
372 | u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ | |
373 | s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ | |
1da177e4 | 374 | }; |
0df6454d | 375 | |
0531d98b | 376 | static int adc_lsb(const struct it87_data *data, int nr) |
44c1bcd4 | 377 | { |
0531d98b GR |
378 | int lsb = has_12mv_adc(data) ? 12 : 16; |
379 | if (data->in_scaled & (1 << nr)) | |
380 | lsb <<= 1; | |
381 | return lsb; | |
382 | } | |
44c1bcd4 | 383 | |
0531d98b GR |
384 | static u8 in_to_reg(const struct it87_data *data, int nr, long val) |
385 | { | |
386 | val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr)); | |
44c1bcd4 JD |
387 | return SENSORS_LIMIT(val, 0, 255); |
388 | } | |
389 | ||
390 | static int in_from_reg(const struct it87_data *data, int nr, int val) | |
391 | { | |
0531d98b | 392 | return val * adc_lsb(data, nr); |
44c1bcd4 | 393 | } |
0df6454d JD |
394 | |
395 | static inline u8 FAN_TO_REG(long rpm, int div) | |
396 | { | |
397 | if (rpm == 0) | |
398 | return 255; | |
399 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
400 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
401 | 254); | |
402 | } | |
403 | ||
404 | static inline u16 FAN16_TO_REG(long rpm) | |
405 | { | |
406 | if (rpm == 0) | |
407 | return 0xffff; | |
408 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
409 | } | |
410 | ||
411 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ | |
412 | 1350000 / ((val) * (div))) | |
413 | /* The divider is fixed to 2 in 16-bit mode */ | |
414 | #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ | |
415 | 1350000 / ((val) * 2)) | |
416 | ||
417 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \ | |
418 | ((val) + 500) / 1000), -128, 127)) | |
419 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
420 | ||
44c1bcd4 JD |
421 | static u8 pwm_to_reg(const struct it87_data *data, long val) |
422 | { | |
16b5dda2 | 423 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
424 | return val; |
425 | else | |
426 | return val >> 1; | |
427 | } | |
428 | ||
429 | static int pwm_from_reg(const struct it87_data *data, u8 reg) | |
430 | { | |
16b5dda2 | 431 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
432 | return reg; |
433 | else | |
434 | return (reg & 0x7f) << 1; | |
435 | } | |
436 | ||
0df6454d JD |
437 | |
438 | static int DIV_TO_REG(int val) | |
439 | { | |
440 | int answer = 0; | |
441 | while (answer < 7 && (val >>= 1)) | |
442 | answer++; | |
443 | return answer; | |
444 | } | |
445 | #define DIV_FROM_REG(val) (1 << (val)) | |
446 | ||
447 | static const unsigned int pwm_freq[8] = { | |
448 | 48000000 / 128, | |
449 | 24000000 / 128, | |
450 | 12000000 / 128, | |
451 | 8000000 / 128, | |
452 | 6000000 / 128, | |
453 | 3000000 / 128, | |
454 | 1500000 / 128, | |
455 | 750000 / 128, | |
456 | }; | |
1da177e4 | 457 | |
b74f3fdd | 458 | static int it87_probe(struct platform_device *pdev); |
281dfd0b | 459 | static int it87_remove(struct platform_device *pdev); |
1da177e4 | 460 | |
b74f3fdd | 461 | static int it87_read_value(struct it87_data *data, u8 reg); |
462 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 463 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 464 | static int it87_check_pwm(struct device *dev); |
465 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
466 | |
467 | ||
b74f3fdd | 468 | static struct platform_driver it87_driver = { |
cdaf7934 | 469 | .driver = { |
87218842 | 470 | .owner = THIS_MODULE, |
b74f3fdd | 471 | .name = DRVNAME, |
cdaf7934 | 472 | }, |
b74f3fdd | 473 | .probe = it87_probe, |
9e5e9b7a | 474 | .remove = it87_remove, |
fde09509 JD |
475 | }; |
476 | ||
20ad93d4 | 477 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
929c6a56 | 478 | char *buf) |
1da177e4 | 479 | { |
929c6a56 GR |
480 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
481 | int nr = sattr->nr; | |
482 | int index = sattr->index; | |
20ad93d4 | 483 | |
1da177e4 | 484 | struct it87_data *data = it87_update_device(dev); |
929c6a56 | 485 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index])); |
1da177e4 LT |
486 | } |
487 | ||
929c6a56 GR |
488 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, |
489 | const char *buf, size_t count) | |
1da177e4 | 490 | { |
929c6a56 GR |
491 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
492 | int nr = sattr->nr; | |
493 | int index = sattr->index; | |
20ad93d4 | 494 | |
b74f3fdd | 495 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
496 | unsigned long val; |
497 | ||
179c4fdb | 498 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 499 | return -EINVAL; |
1da177e4 | 500 | |
9a61bf63 | 501 | mutex_lock(&data->update_lock); |
929c6a56 GR |
502 | data->in[nr][index] = in_to_reg(data, nr, val); |
503 | it87_write_value(data, | |
504 | index == 1 ? IT87_REG_VIN_MIN(nr) | |
505 | : IT87_REG_VIN_MAX(nr), | |
506 | data->in[nr][index]); | |
9a61bf63 | 507 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
508 | return count; |
509 | } | |
20ad93d4 | 510 | |
929c6a56 GR |
511 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0); |
512 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
513 | 0, 1); | |
514 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
515 | 0, 2); | |
f5f64501 | 516 | |
929c6a56 GR |
517 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0); |
518 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
519 | 1, 1); | |
520 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
521 | 1, 2); | |
1da177e4 | 522 | |
929c6a56 GR |
523 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0); |
524 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
525 | 2, 1); | |
526 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
527 | 2, 2); | |
1da177e4 | 528 | |
929c6a56 GR |
529 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0); |
530 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
531 | 3, 1); | |
532 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
533 | 3, 2); | |
534 | ||
535 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0); | |
536 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
537 | 4, 1); | |
538 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
539 | 4, 2); | |
540 | ||
541 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0); | |
542 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
543 | 5, 1); | |
544 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
545 | 5, 2); | |
546 | ||
547 | static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0); | |
548 | static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
549 | 6, 1); | |
550 | static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
551 | 6, 2); | |
552 | ||
553 | static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0); | |
554 | static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in, | |
555 | 7, 1); | |
556 | static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in, | |
557 | 7, 2); | |
558 | ||
559 | static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0); | |
1da177e4 LT |
560 | |
561 | /* 3 temperatures */ | |
20ad93d4 | 562 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
60ca385a | 563 | char *buf) |
1da177e4 | 564 | { |
60ca385a GR |
565 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
566 | int nr = sattr->nr; | |
567 | int index = sattr->index; | |
1da177e4 | 568 | struct it87_data *data = it87_update_device(dev); |
20ad93d4 | 569 | |
60ca385a | 570 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index])); |
1da177e4 | 571 | } |
20ad93d4 | 572 | |
60ca385a GR |
573 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, |
574 | const char *buf, size_t count) | |
1da177e4 | 575 | { |
60ca385a GR |
576 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
577 | int nr = sattr->nr; | |
578 | int index = sattr->index; | |
b74f3fdd | 579 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 580 | long val; |
161d898a | 581 | u8 reg, regval; |
f5f64501 | 582 | |
179c4fdb | 583 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 584 | return -EINVAL; |
1da177e4 | 585 | |
9a61bf63 | 586 | mutex_lock(&data->update_lock); |
161d898a GR |
587 | |
588 | switch (index) { | |
589 | default: | |
590 | case 1: | |
591 | reg = IT87_REG_TEMP_LOW(nr); | |
592 | break; | |
593 | case 2: | |
594 | reg = IT87_REG_TEMP_HIGH(nr); | |
595 | break; | |
596 | case 3: | |
597 | regval = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
598 | if (!(regval & 0x80)) { | |
599 | regval |= 0x80; | |
600 | it87_write_value(data, IT87_REG_BEEP_ENABLE, regval); | |
601 | } | |
602 | data->valid = 0; | |
603 | reg = IT87_REG_TEMP_OFFSET[nr]; | |
604 | break; | |
605 | } | |
606 | ||
60ca385a | 607 | data->temp[nr][index] = TEMP_TO_REG(val); |
161d898a | 608 | it87_write_value(data, reg, data->temp[nr][index]); |
9a61bf63 | 609 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
610 | return count; |
611 | } | |
1da177e4 | 612 | |
60ca385a GR |
613 | static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0); |
614 | static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
615 | 0, 1); | |
616 | static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
617 | 0, 2); | |
161d898a GR |
618 | static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, |
619 | set_temp, 0, 3); | |
60ca385a GR |
620 | static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0); |
621 | static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
622 | 1, 1); | |
623 | static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
624 | 1, 2); | |
161d898a GR |
625 | static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, |
626 | set_temp, 1, 3); | |
60ca385a GR |
627 | static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0); |
628 | static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
629 | 2, 1); | |
630 | static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
631 | 2, 2); | |
161d898a GR |
632 | static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, |
633 | set_temp, 2, 3); | |
1da177e4 | 634 | |
2cece01f GR |
635 | static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr, |
636 | char *buf) | |
1da177e4 | 637 | { |
20ad93d4 JD |
638 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
639 | int nr = sensor_attr->index; | |
1da177e4 | 640 | struct it87_data *data = it87_update_device(dev); |
4a0d71cf | 641 | u8 reg = data->sensor; /* In case value is updated while used */ |
19529784 | 642 | u8 extra = data->extra; |
5f2dc798 | 643 | |
19529784 GR |
644 | if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1)) |
645 | || (has_temp_old_peci(data, nr) && (extra & 0x80))) | |
5d8d2f2b | 646 | return sprintf(buf, "6\n"); /* Intel PECI */ |
1da177e4 LT |
647 | if (reg & (1 << nr)) |
648 | return sprintf(buf, "3\n"); /* thermal diode */ | |
649 | if (reg & (8 << nr)) | |
4ed10779 | 650 | return sprintf(buf, "4\n"); /* thermistor */ |
1da177e4 LT |
651 | return sprintf(buf, "0\n"); /* disabled */ |
652 | } | |
2cece01f GR |
653 | |
654 | static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr, | |
655 | const char *buf, size_t count) | |
1da177e4 | 656 | { |
20ad93d4 JD |
657 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
658 | int nr = sensor_attr->index; | |
659 | ||
b74f3fdd | 660 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 661 | long val; |
19529784 | 662 | u8 reg, extra; |
f5f64501 | 663 | |
179c4fdb | 664 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 665 | return -EINVAL; |
1da177e4 | 666 | |
8acf07c5 JD |
667 | reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
668 | reg &= ~(1 << nr); | |
669 | reg &= ~(8 << nr); | |
5d8d2f2b GR |
670 | if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6)) |
671 | reg &= 0x3f; | |
19529784 GR |
672 | extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); |
673 | if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6)) | |
674 | extra &= 0x7f; | |
4ed10779 | 675 | if (val == 2) { /* backwards compatibility */ |
1d9bcf6a GR |
676 | dev_warn(dev, |
677 | "Sensor type 2 is deprecated, please use 4 instead\n"); | |
4ed10779 JD |
678 | val = 4; |
679 | } | |
5d8d2f2b | 680 | /* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */ |
1da177e4 | 681 | if (val == 3) |
8acf07c5 | 682 | reg |= 1 << nr; |
4ed10779 | 683 | else if (val == 4) |
8acf07c5 | 684 | reg |= 8 << nr; |
5d8d2f2b GR |
685 | else if (has_temp_peci(data, nr) && val == 6) |
686 | reg |= (nr + 1) << 6; | |
19529784 GR |
687 | else if (has_temp_old_peci(data, nr) && val == 6) |
688 | extra |= 0x80; | |
8acf07c5 | 689 | else if (val != 0) |
1da177e4 | 690 | return -EINVAL; |
8acf07c5 JD |
691 | |
692 | mutex_lock(&data->update_lock); | |
693 | data->sensor = reg; | |
19529784 | 694 | data->extra = extra; |
b74f3fdd | 695 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
19529784 GR |
696 | if (has_temp_old_peci(data, nr)) |
697 | it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra); | |
2b3d1d87 | 698 | data->valid = 0; /* Force cache refresh */ |
9a61bf63 | 699 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
700 | return count; |
701 | } | |
1da177e4 | 702 | |
2cece01f GR |
703 | static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, |
704 | set_temp_type, 0); | |
705 | static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, | |
706 | set_temp_type, 1); | |
707 | static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, | |
708 | set_temp_type, 2); | |
1da177e4 LT |
709 | |
710 | /* 3 Fans */ | |
b99883dc JD |
711 | |
712 | static int pwm_mode(const struct it87_data *data, int nr) | |
713 | { | |
714 | int ctrl = data->fan_main_ctrl & (1 << nr); | |
715 | ||
716 | if (ctrl == 0) /* Full speed */ | |
717 | return 0; | |
718 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
719 | return 2; | |
720 | else /* Manual mode */ | |
721 | return 1; | |
722 | } | |
723 | ||
20ad93d4 | 724 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
e1169ba0 | 725 | char *buf) |
1da177e4 | 726 | { |
e1169ba0 GR |
727 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
728 | int nr = sattr->nr; | |
729 | int index = sattr->index; | |
730 | int speed; | |
1da177e4 | 731 | struct it87_data *data = it87_update_device(dev); |
20ad93d4 | 732 | |
e1169ba0 GR |
733 | speed = has_16bit_fans(data) ? |
734 | FAN16_FROM_REG(data->fan[nr][index]) : | |
735 | FAN_FROM_REG(data->fan[nr][index], | |
736 | DIV_FROM_REG(data->fan_div[nr])); | |
737 | return sprintf(buf, "%d\n", speed); | |
1da177e4 | 738 | } |
e1169ba0 | 739 | |
20ad93d4 JD |
740 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
741 | char *buf) | |
1da177e4 | 742 | { |
20ad93d4 JD |
743 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
744 | int nr = sensor_attr->index; | |
745 | ||
1da177e4 LT |
746 | struct it87_data *data = it87_update_device(dev); |
747 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
748 | } | |
5f2dc798 JD |
749 | static ssize_t show_pwm_enable(struct device *dev, |
750 | struct device_attribute *attr, char *buf) | |
1da177e4 | 751 | { |
20ad93d4 JD |
752 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
753 | int nr = sensor_attr->index; | |
754 | ||
1da177e4 | 755 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 756 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
1da177e4 | 757 | } |
20ad93d4 JD |
758 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
759 | char *buf) | |
1da177e4 | 760 | { |
20ad93d4 JD |
761 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
762 | int nr = sensor_attr->index; | |
763 | ||
1da177e4 | 764 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 JD |
765 | return sprintf(buf, "%d\n", |
766 | pwm_from_reg(data, data->pwm_duty[nr])); | |
1da177e4 | 767 | } |
f8d0c19a JD |
768 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
769 | char *buf) | |
770 | { | |
771 | struct it87_data *data = it87_update_device(dev); | |
772 | int index = (data->fan_ctl >> 4) & 0x07; | |
773 | ||
774 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
775 | } | |
e1169ba0 GR |
776 | |
777 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
778 | const char *buf, size_t count) | |
1da177e4 | 779 | { |
e1169ba0 GR |
780 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
781 | int nr = sattr->nr; | |
782 | int index = sattr->index; | |
20ad93d4 | 783 | |
b74f3fdd | 784 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 785 | long val; |
7f999aa7 | 786 | u8 reg; |
1da177e4 | 787 | |
179c4fdb | 788 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 JD |
789 | return -EINVAL; |
790 | ||
9a61bf63 | 791 | mutex_lock(&data->update_lock); |
e1169ba0 GR |
792 | |
793 | if (has_16bit_fans(data)) { | |
794 | data->fan[nr][index] = FAN16_TO_REG(val); | |
795 | it87_write_value(data, IT87_REG_FAN_MIN[nr], | |
796 | data->fan[nr][index] & 0xff); | |
797 | it87_write_value(data, IT87_REG_FANX_MIN[nr], | |
798 | data->fan[nr][index] >> 8); | |
799 | } else { | |
800 | reg = it87_read_value(data, IT87_REG_FAN_DIV); | |
801 | switch (nr) { | |
802 | case 0: | |
803 | data->fan_div[nr] = reg & 0x07; | |
804 | break; | |
805 | case 1: | |
806 | data->fan_div[nr] = (reg >> 3) & 0x07; | |
807 | break; | |
808 | case 2: | |
809 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; | |
810 | break; | |
811 | } | |
812 | data->fan[nr][index] = | |
813 | FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); | |
814 | it87_write_value(data, IT87_REG_FAN_MIN[nr], | |
815 | data->fan[nr][index]); | |
07eab46d JD |
816 | } |
817 | ||
9a61bf63 | 818 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
819 | return count; |
820 | } | |
e1169ba0 | 821 | |
20ad93d4 JD |
822 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
823 | const char *buf, size_t count) | |
1da177e4 | 824 | { |
20ad93d4 JD |
825 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
826 | int nr = sensor_attr->index; | |
827 | ||
b74f3fdd | 828 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 829 | unsigned long val; |
8ab4ec3e | 830 | int min; |
1da177e4 LT |
831 | u8 old; |
832 | ||
179c4fdb | 833 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
834 | return -EINVAL; |
835 | ||
9a61bf63 | 836 | mutex_lock(&data->update_lock); |
b74f3fdd | 837 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 838 | |
8ab4ec3e | 839 | /* Save fan min limit */ |
e1169ba0 | 840 | min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr])); |
1da177e4 LT |
841 | |
842 | switch (nr) { | |
843 | case 0: | |
844 | case 1: | |
845 | data->fan_div[nr] = DIV_TO_REG(val); | |
846 | break; | |
847 | case 2: | |
848 | if (val < 8) | |
849 | data->fan_div[nr] = 1; | |
850 | else | |
851 | data->fan_div[nr] = 3; | |
852 | } | |
853 | val = old & 0x80; | |
854 | val |= (data->fan_div[0] & 0x07); | |
855 | val |= (data->fan_div[1] & 0x07) << 3; | |
856 | if (data->fan_div[2] == 3) | |
857 | val |= 0x1 << 6; | |
b74f3fdd | 858 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 859 | |
8ab4ec3e | 860 | /* Restore fan min limit */ |
e1169ba0 GR |
861 | data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
862 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]); | |
8ab4ec3e | 863 | |
9a61bf63 | 864 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
865 | return count; |
866 | } | |
cccfc9c4 JD |
867 | |
868 | /* Returns 0 if OK, -EINVAL otherwise */ | |
869 | static int check_trip_points(struct device *dev, int nr) | |
870 | { | |
871 | const struct it87_data *data = dev_get_drvdata(dev); | |
872 | int i, err = 0; | |
873 | ||
874 | if (has_old_autopwm(data)) { | |
875 | for (i = 0; i < 3; i++) { | |
876 | if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) | |
877 | err = -EINVAL; | |
878 | } | |
879 | for (i = 0; i < 2; i++) { | |
880 | if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) | |
881 | err = -EINVAL; | |
882 | } | |
883 | } | |
884 | ||
885 | if (err) { | |
1d9bcf6a GR |
886 | dev_err(dev, |
887 | "Inconsistent trip points, not switching to automatic mode\n"); | |
cccfc9c4 JD |
888 | dev_err(dev, "Adjust the trip points and try again\n"); |
889 | } | |
890 | return err; | |
891 | } | |
892 | ||
20ad93d4 JD |
893 | static ssize_t set_pwm_enable(struct device *dev, |
894 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 895 | { |
20ad93d4 JD |
896 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
897 | int nr = sensor_attr->index; | |
898 | ||
b74f3fdd | 899 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 900 | long val; |
1da177e4 | 901 | |
179c4fdb | 902 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
b99883dc JD |
903 | return -EINVAL; |
904 | ||
cccfc9c4 JD |
905 | /* Check trip points before switching to automatic mode */ |
906 | if (val == 2) { | |
907 | if (check_trip_points(dev, nr) < 0) | |
908 | return -EINVAL; | |
909 | } | |
910 | ||
9a61bf63 | 911 | mutex_lock(&data->update_lock); |
1da177e4 LT |
912 | |
913 | if (val == 0) { | |
914 | int tmp; | |
915 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 916 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
917 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
918 | /* set on/off mode */ |
919 | data->fan_main_ctrl &= ~(1 << nr); | |
5f2dc798 JD |
920 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
921 | data->fan_main_ctrl); | |
b99883dc JD |
922 | } else { |
923 | if (val == 1) /* Manual mode */ | |
16b5dda2 | 924 | data->pwm_ctrl[nr] = has_newer_autopwm(data) ? |
6229cdb2 JD |
925 | data->pwm_temp_map[nr] : |
926 | data->pwm_duty[nr]; | |
b99883dc JD |
927 | else /* Automatic mode */ |
928 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
929 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1da177e4 LT |
930 | /* set SmartGuardian mode */ |
931 | data->fan_main_ctrl |= (1 << nr); | |
5f2dc798 JD |
932 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
933 | data->fan_main_ctrl); | |
1da177e4 LT |
934 | } |
935 | ||
9a61bf63 | 936 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
937 | return count; |
938 | } | |
20ad93d4 JD |
939 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
940 | const char *buf, size_t count) | |
1da177e4 | 941 | { |
20ad93d4 JD |
942 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
943 | int nr = sensor_attr->index; | |
944 | ||
b74f3fdd | 945 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 946 | long val; |
1da177e4 | 947 | |
179c4fdb | 948 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1da177e4 LT |
949 | return -EINVAL; |
950 | ||
9a61bf63 | 951 | mutex_lock(&data->update_lock); |
16b5dda2 | 952 | if (has_newer_autopwm(data)) { |
4a0d71cf GR |
953 | /* |
954 | * If we are in automatic mode, the PWM duty cycle register | |
955 | * is read-only so we can't write the value. | |
956 | */ | |
6229cdb2 JD |
957 | if (data->pwm_ctrl[nr] & 0x80) { |
958 | mutex_unlock(&data->update_lock); | |
959 | return -EBUSY; | |
960 | } | |
961 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
962 | it87_write_value(data, IT87_REG_PWM_DUTY(nr), | |
963 | data->pwm_duty[nr]); | |
964 | } else { | |
965 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
4a0d71cf GR |
966 | /* |
967 | * If we are in manual mode, write the duty cycle immediately; | |
968 | * otherwise, just store it for later use. | |
969 | */ | |
6229cdb2 JD |
970 | if (!(data->pwm_ctrl[nr] & 0x80)) { |
971 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
972 | it87_write_value(data, IT87_REG_PWM(nr), | |
973 | data->pwm_ctrl[nr]); | |
974 | } | |
b99883dc | 975 | } |
9a61bf63 | 976 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
977 | return count; |
978 | } | |
f8d0c19a JD |
979 | static ssize_t set_pwm_freq(struct device *dev, |
980 | struct device_attribute *attr, const char *buf, size_t count) | |
981 | { | |
b74f3fdd | 982 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 983 | unsigned long val; |
f8d0c19a JD |
984 | int i; |
985 | ||
179c4fdb | 986 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
987 | return -EINVAL; |
988 | ||
f8d0c19a JD |
989 | /* Search for the nearest available frequency */ |
990 | for (i = 0; i < 7; i++) { | |
991 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
992 | break; | |
993 | } | |
994 | ||
995 | mutex_lock(&data->update_lock); | |
b74f3fdd | 996 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 997 | data->fan_ctl |= i << 4; |
b74f3fdd | 998 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
999 | mutex_unlock(&data->update_lock); |
1000 | ||
1001 | return count; | |
1002 | } | |
94ac7ee6 JD |
1003 | static ssize_t show_pwm_temp_map(struct device *dev, |
1004 | struct device_attribute *attr, char *buf) | |
1005 | { | |
1006 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1007 | int nr = sensor_attr->index; | |
1008 | ||
1009 | struct it87_data *data = it87_update_device(dev); | |
1010 | int map; | |
1011 | ||
1012 | if (data->pwm_temp_map[nr] < 3) | |
1013 | map = 1 << data->pwm_temp_map[nr]; | |
1014 | else | |
1015 | map = 0; /* Should never happen */ | |
1016 | return sprintf(buf, "%d\n", map); | |
1017 | } | |
1018 | static ssize_t set_pwm_temp_map(struct device *dev, | |
1019 | struct device_attribute *attr, const char *buf, size_t count) | |
1020 | { | |
1021 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1022 | int nr = sensor_attr->index; | |
1023 | ||
1024 | struct it87_data *data = dev_get_drvdata(dev); | |
1025 | long val; | |
1026 | u8 reg; | |
1027 | ||
4a0d71cf GR |
1028 | /* |
1029 | * This check can go away if we ever support automatic fan speed | |
1030 | * control on newer chips. | |
1031 | */ | |
4f3f51bc JD |
1032 | if (!has_old_autopwm(data)) { |
1033 | dev_notice(dev, "Mapping change disabled for safety reasons\n"); | |
1034 | return -EINVAL; | |
1035 | } | |
1036 | ||
179c4fdb | 1037 | if (kstrtol(buf, 10, &val) < 0) |
94ac7ee6 JD |
1038 | return -EINVAL; |
1039 | ||
1040 | switch (val) { | |
1041 | case (1 << 0): | |
1042 | reg = 0x00; | |
1043 | break; | |
1044 | case (1 << 1): | |
1045 | reg = 0x01; | |
1046 | break; | |
1047 | case (1 << 2): | |
1048 | reg = 0x02; | |
1049 | break; | |
1050 | default: | |
1051 | return -EINVAL; | |
1052 | } | |
1053 | ||
1054 | mutex_lock(&data->update_lock); | |
1055 | data->pwm_temp_map[nr] = reg; | |
4a0d71cf GR |
1056 | /* |
1057 | * If we are in automatic mode, write the temp mapping immediately; | |
1058 | * otherwise, just store it for later use. | |
1059 | */ | |
94ac7ee6 JD |
1060 | if (data->pwm_ctrl[nr] & 0x80) { |
1061 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
1062 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1063 | } | |
1064 | mutex_unlock(&data->update_lock); | |
1065 | return count; | |
1066 | } | |
1da177e4 | 1067 | |
4f3f51bc JD |
1068 | static ssize_t show_auto_pwm(struct device *dev, |
1069 | struct device_attribute *attr, char *buf) | |
1070 | { | |
1071 | struct it87_data *data = it87_update_device(dev); | |
1072 | struct sensor_device_attribute_2 *sensor_attr = | |
1073 | to_sensor_dev_attr_2(attr); | |
1074 | int nr = sensor_attr->nr; | |
1075 | int point = sensor_attr->index; | |
1076 | ||
44c1bcd4 JD |
1077 | return sprintf(buf, "%d\n", |
1078 | pwm_from_reg(data, data->auto_pwm[nr][point])); | |
4f3f51bc JD |
1079 | } |
1080 | ||
1081 | static ssize_t set_auto_pwm(struct device *dev, | |
1082 | struct device_attribute *attr, const char *buf, size_t count) | |
1083 | { | |
1084 | struct it87_data *data = dev_get_drvdata(dev); | |
1085 | struct sensor_device_attribute_2 *sensor_attr = | |
1086 | to_sensor_dev_attr_2(attr); | |
1087 | int nr = sensor_attr->nr; | |
1088 | int point = sensor_attr->index; | |
1089 | long val; | |
1090 | ||
179c4fdb | 1091 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
4f3f51bc JD |
1092 | return -EINVAL; |
1093 | ||
1094 | mutex_lock(&data->update_lock); | |
44c1bcd4 | 1095 | data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
4f3f51bc JD |
1096 | it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
1097 | data->auto_pwm[nr][point]); | |
1098 | mutex_unlock(&data->update_lock); | |
1099 | return count; | |
1100 | } | |
1101 | ||
1102 | static ssize_t show_auto_temp(struct device *dev, | |
1103 | struct device_attribute *attr, char *buf) | |
1104 | { | |
1105 | struct it87_data *data = it87_update_device(dev); | |
1106 | struct sensor_device_attribute_2 *sensor_attr = | |
1107 | to_sensor_dev_attr_2(attr); | |
1108 | int nr = sensor_attr->nr; | |
1109 | int point = sensor_attr->index; | |
1110 | ||
1111 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); | |
1112 | } | |
1113 | ||
1114 | static ssize_t set_auto_temp(struct device *dev, | |
1115 | struct device_attribute *attr, const char *buf, size_t count) | |
1116 | { | |
1117 | struct it87_data *data = dev_get_drvdata(dev); | |
1118 | struct sensor_device_attribute_2 *sensor_attr = | |
1119 | to_sensor_dev_attr_2(attr); | |
1120 | int nr = sensor_attr->nr; | |
1121 | int point = sensor_attr->index; | |
1122 | long val; | |
1123 | ||
179c4fdb | 1124 | if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) |
4f3f51bc JD |
1125 | return -EINVAL; |
1126 | ||
1127 | mutex_lock(&data->update_lock); | |
1128 | data->auto_temp[nr][point] = TEMP_TO_REG(val); | |
1129 | it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), | |
1130 | data->auto_temp[nr][point]); | |
1131 | mutex_unlock(&data->update_lock); | |
1132 | return count; | |
1133 | } | |
1134 | ||
e1169ba0 GR |
1135 | static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0); |
1136 | static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan, | |
1137 | 0, 1); | |
1138 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, | |
1139 | set_fan_div, 0); | |
1140 | ||
1141 | static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0); | |
1142 | static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan, | |
1143 | 1, 1); | |
1144 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, | |
1145 | set_fan_div, 1); | |
1146 | ||
1147 | static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0); | |
1148 | static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan, | |
1149 | 2, 1); | |
1150 | static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div, | |
1151 | set_fan_div, 2); | |
1152 | ||
1153 | static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0); | |
1154 | static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan, | |
1155 | 3, 1); | |
1da177e4 | 1156 | |
e1169ba0 GR |
1157 | static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0); |
1158 | static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, | |
1159 | 4, 1); | |
1da177e4 | 1160 | |
c4458db3 GR |
1161 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, |
1162 | show_pwm_enable, set_pwm_enable, 0); | |
1163 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); | |
1164 | static DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq); | |
1165 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, | |
1166 | show_pwm_temp_map, set_pwm_temp_map, 0); | |
1167 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
1168 | show_auto_pwm, set_auto_pwm, 0, 0); | |
1169 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
1170 | show_auto_pwm, set_auto_pwm, 0, 1); | |
1171 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
1172 | show_auto_pwm, set_auto_pwm, 0, 2); | |
1173 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO, | |
1174 | show_auto_pwm, NULL, 0, 3); | |
1175 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, | |
1176 | show_auto_temp, set_auto_temp, 0, 1); | |
1177 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, | |
1178 | show_auto_temp, set_auto_temp, 0, 0); | |
1179 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, | |
1180 | show_auto_temp, set_auto_temp, 0, 2); | |
1181 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, | |
1182 | show_auto_temp, set_auto_temp, 0, 3); | |
1183 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR, | |
1184 | show_auto_temp, set_auto_temp, 0, 4); | |
1185 | ||
1186 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, | |
1187 | show_pwm_enable, set_pwm_enable, 1); | |
1188 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); | |
1189 | static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL); | |
1190 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, | |
1191 | show_pwm_temp_map, set_pwm_temp_map, 1); | |
1192 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
1193 | show_auto_pwm, set_auto_pwm, 1, 0); | |
1194 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
1195 | show_auto_pwm, set_auto_pwm, 1, 1); | |
1196 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
1197 | show_auto_pwm, set_auto_pwm, 1, 2); | |
1198 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO, | |
1199 | show_auto_pwm, NULL, 1, 3); | |
1200 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, | |
1201 | show_auto_temp, set_auto_temp, 1, 1); | |
1202 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, | |
1203 | show_auto_temp, set_auto_temp, 1, 0); | |
1204 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, | |
1205 | show_auto_temp, set_auto_temp, 1, 2); | |
1206 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, | |
1207 | show_auto_temp, set_auto_temp, 1, 3); | |
1208 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR, | |
1209 | show_auto_temp, set_auto_temp, 1, 4); | |
1210 | ||
1211 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, | |
1212 | show_pwm_enable, set_pwm_enable, 2); | |
1213 | static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2); | |
1214 | static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL); | |
1215 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, | |
1216 | show_pwm_temp_map, set_pwm_temp_map, 2); | |
1217 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
1218 | show_auto_pwm, set_auto_pwm, 2, 0); | |
1219 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
1220 | show_auto_pwm, set_auto_pwm, 2, 1); | |
1221 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
1222 | show_auto_pwm, set_auto_pwm, 2, 2); | |
1223 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO, | |
1224 | show_auto_pwm, NULL, 2, 3); | |
1225 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, | |
1226 | show_auto_temp, set_auto_temp, 2, 1); | |
1227 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, | |
1228 | show_auto_temp, set_auto_temp, 2, 0); | |
1229 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, | |
1230 | show_auto_temp, set_auto_temp, 2, 2); | |
1231 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, | |
1232 | show_auto_temp, set_auto_temp, 2, 3); | |
1233 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR, | |
1234 | show_auto_temp, set_auto_temp, 2, 4); | |
1da177e4 LT |
1235 | |
1236 | /* Alarms */ | |
5f2dc798 JD |
1237 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
1238 | char *buf) | |
1da177e4 LT |
1239 | { |
1240 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 1241 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 1242 | } |
1d66c64c | 1243 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 1244 | |
0124dd78 JD |
1245 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
1246 | char *buf) | |
1247 | { | |
1248 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1249 | struct it87_data *data = it87_update_device(dev); | |
1250 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
1251 | } | |
3d30f9e6 JD |
1252 | |
1253 | static ssize_t clear_intrusion(struct device *dev, struct device_attribute | |
1254 | *attr, const char *buf, size_t count) | |
1255 | { | |
1256 | struct it87_data *data = dev_get_drvdata(dev); | |
1257 | long val; | |
1258 | int config; | |
1259 | ||
179c4fdb | 1260 | if (kstrtol(buf, 10, &val) < 0 || val != 0) |
3d30f9e6 JD |
1261 | return -EINVAL; |
1262 | ||
1263 | mutex_lock(&data->update_lock); | |
1264 | config = it87_read_value(data, IT87_REG_CONFIG); | |
1265 | if (config < 0) { | |
1266 | count = config; | |
1267 | } else { | |
1268 | config |= 1 << 5; | |
1269 | it87_write_value(data, IT87_REG_CONFIG, config); | |
1270 | /* Invalidate cache to force re-read */ | |
1271 | data->valid = 0; | |
1272 | } | |
1273 | mutex_unlock(&data->update_lock); | |
1274 | ||
1275 | return count; | |
1276 | } | |
1277 | ||
0124dd78 JD |
1278 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
1279 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
1280 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
1281 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
1282 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
1283 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
1284 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1285 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
1286 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
1287 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
1288 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
1289 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
1290 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
1291 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
1292 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
1293 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
3d30f9e6 JD |
1294 | static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, |
1295 | show_alarm, clear_intrusion, 4); | |
0124dd78 | 1296 | |
d9b327c3 JD |
1297 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
1298 | char *buf) | |
1299 | { | |
1300 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1301 | struct it87_data *data = it87_update_device(dev); | |
1302 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); | |
1303 | } | |
1304 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
1305 | const char *buf, size_t count) | |
1306 | { | |
1307 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1308 | struct it87_data *data = dev_get_drvdata(dev); | |
1309 | long val; | |
1310 | ||
179c4fdb | 1311 | if (kstrtol(buf, 10, &val) < 0 |
d9b327c3 JD |
1312 | || (val != 0 && val != 1)) |
1313 | return -EINVAL; | |
1314 | ||
1315 | mutex_lock(&data->update_lock); | |
1316 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
1317 | if (val) | |
1318 | data->beeps |= (1 << bitnr); | |
1319 | else | |
1320 | data->beeps &= ~(1 << bitnr); | |
1321 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); | |
1322 | mutex_unlock(&data->update_lock); | |
1323 | return count; | |
1324 | } | |
1325 | ||
1326 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
1327 | show_beep, set_beep, 1); | |
1328 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); | |
1329 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); | |
1330 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); | |
1331 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); | |
1332 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); | |
1333 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); | |
1334 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); | |
1335 | /* fanX_beep writability is set later */ | |
1336 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); | |
1337 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); | |
1338 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); | |
1339 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); | |
1340 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); | |
1341 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
1342 | show_beep, set_beep, 2); | |
1343 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); | |
1344 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); | |
1345 | ||
5f2dc798 JD |
1346 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1347 | char *buf) | |
1da177e4 | 1348 | { |
90d6619a | 1349 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 1350 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 | 1351 | } |
5f2dc798 JD |
1352 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1353 | const char *buf, size_t count) | |
1da177e4 | 1354 | { |
b74f3fdd | 1355 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1356 | unsigned long val; |
1357 | ||
179c4fdb | 1358 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 1359 | return -EINVAL; |
1da177e4 | 1360 | |
1da177e4 LT |
1361 | data->vrm = val; |
1362 | ||
1363 | return count; | |
1364 | } | |
1365 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 | 1366 | |
5f2dc798 JD |
1367 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1368 | char *buf) | |
1da177e4 LT |
1369 | { |
1370 | struct it87_data *data = it87_update_device(dev); | |
1371 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
1372 | } | |
1373 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 1374 | |
738e5e05 JD |
1375 | static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
1376 | char *buf) | |
1377 | { | |
3c4c4971 | 1378 | static const char * const labels[] = { |
738e5e05 JD |
1379 | "+5V", |
1380 | "5VSB", | |
1381 | "Vbat", | |
1382 | }; | |
3c4c4971 | 1383 | static const char * const labels_it8721[] = { |
44c1bcd4 JD |
1384 | "+3.3V", |
1385 | "3VSB", | |
1386 | "Vbat", | |
1387 | }; | |
1388 | struct it87_data *data = dev_get_drvdata(dev); | |
738e5e05 JD |
1389 | int nr = to_sensor_dev_attr(attr)->index; |
1390 | ||
16b5dda2 JD |
1391 | return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr] |
1392 | : labels[nr]); | |
738e5e05 JD |
1393 | } |
1394 | static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); | |
1395 | static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); | |
1396 | static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); | |
1397 | ||
b74f3fdd | 1398 | static ssize_t show_name(struct device *dev, struct device_attribute |
1399 | *devattr, char *buf) | |
1400 | { | |
1401 | struct it87_data *data = dev_get_drvdata(dev); | |
1402 | return sprintf(buf, "%s\n", data->name); | |
1403 | } | |
1404 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1405 | ||
9172b5d1 GR |
1406 | static struct attribute *it87_attributes_in[9][5] = { |
1407 | { | |
87808be4 | 1408 | &sensor_dev_attr_in0_input.dev_attr.attr, |
87808be4 | 1409 | &sensor_dev_attr_in0_min.dev_attr.attr, |
87808be4 | 1410 | &sensor_dev_attr_in0_max.dev_attr.attr, |
0124dd78 | 1411 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
9172b5d1 GR |
1412 | NULL |
1413 | }, { | |
1414 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1415 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1416 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
0124dd78 | 1417 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
9172b5d1 GR |
1418 | NULL |
1419 | }, { | |
1420 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1421 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1422 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
0124dd78 | 1423 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
9172b5d1 GR |
1424 | NULL |
1425 | }, { | |
1426 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1427 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1428 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
0124dd78 | 1429 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
9172b5d1 GR |
1430 | NULL |
1431 | }, { | |
1432 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1433 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1434 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
0124dd78 | 1435 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
9172b5d1 GR |
1436 | NULL |
1437 | }, { | |
1438 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1439 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1440 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
0124dd78 | 1441 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
9172b5d1 GR |
1442 | NULL |
1443 | }, { | |
1444 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1445 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1446 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
0124dd78 | 1447 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
9172b5d1 GR |
1448 | NULL |
1449 | }, { | |
1450 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1451 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1452 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 | 1453 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
9172b5d1 GR |
1454 | NULL |
1455 | }, { | |
1456 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
1457 | NULL | |
1458 | } }; | |
87808be4 | 1459 | |
9172b5d1 GR |
1460 | static const struct attribute_group it87_group_in[9] = { |
1461 | { .attrs = it87_attributes_in[0] }, | |
1462 | { .attrs = it87_attributes_in[1] }, | |
1463 | { .attrs = it87_attributes_in[2] }, | |
1464 | { .attrs = it87_attributes_in[3] }, | |
1465 | { .attrs = it87_attributes_in[4] }, | |
1466 | { .attrs = it87_attributes_in[5] }, | |
1467 | { .attrs = it87_attributes_in[6] }, | |
1468 | { .attrs = it87_attributes_in[7] }, | |
1469 | { .attrs = it87_attributes_in[8] }, | |
1470 | }; | |
1471 | ||
4573acbc GR |
1472 | static struct attribute *it87_attributes_temp[3][6] = { |
1473 | { | |
87808be4 | 1474 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
87808be4 | 1475 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
87808be4 | 1476 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
87808be4 | 1477 | &sensor_dev_attr_temp1_type.dev_attr.attr, |
0124dd78 | 1478 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
4573acbc GR |
1479 | NULL |
1480 | } , { | |
1481 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1482 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1483 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1484 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
0124dd78 | 1485 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
4573acbc GR |
1486 | NULL |
1487 | } , { | |
1488 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1489 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1490 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1491 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 | 1492 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
4573acbc GR |
1493 | NULL |
1494 | } }; | |
1495 | ||
1496 | static const struct attribute_group it87_group_temp[3] = { | |
1497 | { .attrs = it87_attributes_temp[0] }, | |
1498 | { .attrs = it87_attributes_temp[1] }, | |
1499 | { .attrs = it87_attributes_temp[2] }, | |
1500 | }; | |
87808be4 | 1501 | |
161d898a GR |
1502 | static struct attribute *it87_attributes_temp_offset[] = { |
1503 | &sensor_dev_attr_temp1_offset.dev_attr.attr, | |
1504 | &sensor_dev_attr_temp2_offset.dev_attr.attr, | |
1505 | &sensor_dev_attr_temp3_offset.dev_attr.attr, | |
1506 | }; | |
1507 | ||
4573acbc | 1508 | static struct attribute *it87_attributes[] = { |
87808be4 | 1509 | &dev_attr_alarms.attr, |
3d30f9e6 | 1510 | &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
b74f3fdd | 1511 | &dev_attr_name.attr, |
87808be4 JD |
1512 | NULL |
1513 | }; | |
1514 | ||
1515 | static const struct attribute_group it87_group = { | |
1516 | .attrs = it87_attributes, | |
1517 | }; | |
1518 | ||
9172b5d1 | 1519 | static struct attribute *it87_attributes_in_beep[] = { |
d9b327c3 JD |
1520 | &sensor_dev_attr_in0_beep.dev_attr.attr, |
1521 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
1522 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
1523 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
1524 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
1525 | &sensor_dev_attr_in5_beep.dev_attr.attr, | |
1526 | &sensor_dev_attr_in6_beep.dev_attr.attr, | |
1527 | &sensor_dev_attr_in7_beep.dev_attr.attr, | |
9172b5d1 GR |
1528 | NULL |
1529 | }; | |
d9b327c3 | 1530 | |
4573acbc | 1531 | static struct attribute *it87_attributes_temp_beep[] = { |
d9b327c3 JD |
1532 | &sensor_dev_attr_temp1_beep.dev_attr.attr, |
1533 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
1534 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
d9b327c3 JD |
1535 | }; |
1536 | ||
e1169ba0 GR |
1537 | static struct attribute *it87_attributes_fan[5][3+1] = { { |
1538 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1539 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
723a0aa0 JD |
1540 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1541 | NULL | |
1542 | }, { | |
e1169ba0 GR |
1543 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1544 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
723a0aa0 JD |
1545 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1546 | NULL | |
1547 | }, { | |
e1169ba0 GR |
1548 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1549 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
723a0aa0 JD |
1550 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1551 | NULL | |
1552 | }, { | |
e1169ba0 GR |
1553 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1554 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
723a0aa0 JD |
1555 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1556 | NULL | |
1557 | }, { | |
e1169ba0 GR |
1558 | &sensor_dev_attr_fan5_input.dev_attr.attr, |
1559 | &sensor_dev_attr_fan5_min.dev_attr.attr, | |
723a0aa0 JD |
1560 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1561 | NULL | |
1562 | } }; | |
1563 | ||
e1169ba0 GR |
1564 | static const struct attribute_group it87_group_fan[5] = { |
1565 | { .attrs = it87_attributes_fan[0] }, | |
1566 | { .attrs = it87_attributes_fan[1] }, | |
1567 | { .attrs = it87_attributes_fan[2] }, | |
1568 | { .attrs = it87_attributes_fan[3] }, | |
1569 | { .attrs = it87_attributes_fan[4] }, | |
723a0aa0 | 1570 | }; |
87808be4 | 1571 | |
e1169ba0 | 1572 | static const struct attribute *it87_attributes_fan_div[] = { |
87808be4 | 1573 | &sensor_dev_attr_fan1_div.dev_attr.attr, |
87808be4 | 1574 | &sensor_dev_attr_fan2_div.dev_attr.attr, |
87808be4 | 1575 | &sensor_dev_attr_fan3_div.dev_attr.attr, |
723a0aa0 JD |
1576 | }; |
1577 | ||
723a0aa0 | 1578 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
87808be4 | 1579 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
87808be4 | 1580 | &sensor_dev_attr_pwm1.dev_attr.attr, |
d5b0b5d6 | 1581 | &dev_attr_pwm1_freq.attr, |
94ac7ee6 | 1582 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1583 | NULL |
1584 | }, { | |
1585 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1586 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1587 | &dev_attr_pwm2_freq.attr, | |
94ac7ee6 | 1588 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1589 | NULL |
1590 | }, { | |
1591 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1592 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1593 | &dev_attr_pwm3_freq.attr, | |
94ac7ee6 | 1594 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1595 | NULL |
1596 | } }; | |
87808be4 | 1597 | |
723a0aa0 JD |
1598 | static const struct attribute_group it87_group_pwm[3] = { |
1599 | { .attrs = it87_attributes_pwm[0] }, | |
1600 | { .attrs = it87_attributes_pwm[1] }, | |
1601 | { .attrs = it87_attributes_pwm[2] }, | |
1602 | }; | |
1603 | ||
4f3f51bc JD |
1604 | static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
1605 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1606 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1607 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
1608 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
1609 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1610 | &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, | |
1611 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1612 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
1613 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
1614 | NULL | |
1615 | }, { | |
1616 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1617 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1618 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
1619 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
1620 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1621 | &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, | |
1622 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1623 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
1624 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
1625 | NULL | |
1626 | }, { | |
1627 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1628 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1629 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
1630 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
1631 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1632 | &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, | |
1633 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1634 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
1635 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
1636 | NULL | |
1637 | } }; | |
1638 | ||
1639 | static const struct attribute_group it87_group_autopwm[3] = { | |
1640 | { .attrs = it87_attributes_autopwm[0] }, | |
1641 | { .attrs = it87_attributes_autopwm[1] }, | |
1642 | { .attrs = it87_attributes_autopwm[2] }, | |
1643 | }; | |
1644 | ||
d9b327c3 JD |
1645 | static struct attribute *it87_attributes_fan_beep[] = { |
1646 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
1647 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
1648 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
1649 | &sensor_dev_attr_fan4_beep.dev_attr.attr, | |
1650 | &sensor_dev_attr_fan5_beep.dev_attr.attr, | |
1651 | }; | |
1652 | ||
6a8d7acf | 1653 | static struct attribute *it87_attributes_vid[] = { |
87808be4 JD |
1654 | &dev_attr_vrm.attr, |
1655 | &dev_attr_cpu0_vid.attr, | |
1656 | NULL | |
1657 | }; | |
1658 | ||
6a8d7acf JD |
1659 | static const struct attribute_group it87_group_vid = { |
1660 | .attrs = it87_attributes_vid, | |
87808be4 | 1661 | }; |
1da177e4 | 1662 | |
738e5e05 JD |
1663 | static struct attribute *it87_attributes_label[] = { |
1664 | &sensor_dev_attr_in3_label.dev_attr.attr, | |
1665 | &sensor_dev_attr_in7_label.dev_attr.attr, | |
1666 | &sensor_dev_attr_in8_label.dev_attr.attr, | |
1667 | NULL | |
1668 | }; | |
1669 | ||
1670 | static const struct attribute_group it87_group_label = { | |
fa8b6975 | 1671 | .attrs = it87_attributes_label, |
738e5e05 JD |
1672 | }; |
1673 | ||
2d8672c5 | 1674 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 1675 | static int __init it87_find(unsigned short *address, |
1676 | struct it87_sio_data *sio_data) | |
1da177e4 | 1677 | { |
5b0380c9 | 1678 | int err; |
b74f3fdd | 1679 | u16 chip_type; |
98dd22c3 | 1680 | const char *board_vendor, *board_name; |
1da177e4 | 1681 | |
5b0380c9 NG |
1682 | err = superio_enter(); |
1683 | if (err) | |
1684 | return err; | |
1685 | ||
1686 | err = -ENODEV; | |
67b671bc | 1687 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 1688 | |
1689 | switch (chip_type) { | |
1690 | case IT8705F_DEVID: | |
1691 | sio_data->type = it87; | |
1692 | break; | |
1693 | case IT8712F_DEVID: | |
1694 | sio_data->type = it8712; | |
1695 | break; | |
1696 | case IT8716F_DEVID: | |
1697 | case IT8726F_DEVID: | |
1698 | sio_data->type = it8716; | |
1699 | break; | |
1700 | case IT8718F_DEVID: | |
1701 | sio_data->type = it8718; | |
1702 | break; | |
b4da93e4 JMS |
1703 | case IT8720F_DEVID: |
1704 | sio_data->type = it8720; | |
1705 | break; | |
44c1bcd4 JD |
1706 | case IT8721F_DEVID: |
1707 | sio_data->type = it8721; | |
1708 | break; | |
16b5dda2 JD |
1709 | case IT8728F_DEVID: |
1710 | sio_data->type = it8728; | |
1711 | break; | |
0531d98b GR |
1712 | case IT8782F_DEVID: |
1713 | sio_data->type = it8782; | |
1714 | break; | |
1715 | case IT8783E_DEVID: | |
1716 | sio_data->type = it8783; | |
1717 | break; | |
b74f3fdd | 1718 | case 0xffff: /* No device at all */ |
1719 | goto exit; | |
1720 | default: | |
a8ca1037 | 1721 | pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
b74f3fdd | 1722 | goto exit; |
1723 | } | |
1da177e4 | 1724 | |
87673dd7 | 1725 | superio_select(PME); |
1da177e4 | 1726 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
a8ca1037 | 1727 | pr_info("Device not activated, skipping\n"); |
1da177e4 LT |
1728 | goto exit; |
1729 | } | |
1730 | ||
1731 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1732 | if (*address == 0) { | |
a8ca1037 | 1733 | pr_info("Base address not set, skipping\n"); |
1da177e4 LT |
1734 | goto exit; |
1735 | } | |
1736 | ||
1737 | err = 0; | |
0475169c | 1738 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
a8ca1037 | 1739 | pr_info("Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1740 | chip_type, *address, sio_data->revision); |
1da177e4 | 1741 | |
738e5e05 JD |
1742 | /* in8 (Vbat) is always internal */ |
1743 | sio_data->internal = (1 << 2); | |
1744 | ||
87673dd7 | 1745 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
895ff267 JD |
1746 | if (sio_data->type == it87) { |
1747 | /* The IT8705F doesn't have VID pins at all */ | |
1748 | sio_data->skip_vid = 1; | |
d9b327c3 JD |
1749 | |
1750 | /* The IT8705F has a different LD number for GPIO */ | |
1751 | superio_select(5); | |
1752 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
0531d98b GR |
1753 | } else if (sio_data->type == it8783) { |
1754 | int reg25, reg27, reg2A, reg2C, regEF; | |
0531d98b GR |
1755 | |
1756 | sio_data->skip_vid = 1; /* No VID */ | |
1757 | ||
1758 | superio_select(GPIO); | |
1759 | ||
1760 | reg25 = superio_inb(IT87_SIO_GPIO1_REG); | |
1761 | reg27 = superio_inb(IT87_SIO_GPIO3_REG); | |
1762 | reg2A = superio_inb(IT87_SIO_PINX1_REG); | |
1763 | reg2C = superio_inb(IT87_SIO_PINX2_REG); | |
1764 | regEF = superio_inb(IT87_SIO_SPI_REG); | |
1765 | ||
0531d98b | 1766 | /* Check if fan3 is there or not */ |
9172b5d1 | 1767 | if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2))) |
0531d98b GR |
1768 | sio_data->skip_fan |= (1 << 2); |
1769 | if ((reg25 & (1 << 4)) | |
1770 | || (!(reg2A & (1 << 1)) && (regEF & (1 << 0)))) | |
1771 | sio_data->skip_pwm |= (1 << 2); | |
1772 | ||
1773 | /* Check if fan2 is there or not */ | |
1774 | if (reg27 & (1 << 7)) | |
1775 | sio_data->skip_fan |= (1 << 1); | |
1776 | if (reg27 & (1 << 3)) | |
1777 | sio_data->skip_pwm |= (1 << 1); | |
1778 | ||
1779 | /* VIN5 */ | |
9172b5d1 GR |
1780 | if ((reg27 & (1 << 0)) || (reg2C & (1 << 2))) |
1781 | sio_data->skip_in |= (1 << 5); /* No VIN5 */ | |
0531d98b GR |
1782 | |
1783 | /* VIN6 */ | |
9172b5d1 GR |
1784 | if (reg27 & (1 << 1)) |
1785 | sio_data->skip_in |= (1 << 6); /* No VIN6 */ | |
0531d98b GR |
1786 | |
1787 | /* | |
1788 | * VIN7 | |
1789 | * Does not depend on bit 2 of Reg2C, contrary to datasheet. | |
1790 | */ | |
9172b5d1 GR |
1791 | if (reg27 & (1 << 2)) { |
1792 | /* | |
1793 | * The data sheet is a bit unclear regarding the | |
1794 | * internal voltage divider for VCCH5V. It says | |
1795 | * "This bit enables and switches VIN7 (pin 91) to the | |
1796 | * internal voltage divider for VCCH5V". | |
1797 | * This is different to other chips, where the internal | |
1798 | * voltage divider would connect VIN7 to an internal | |
1799 | * voltage source. Maybe that is the case here as well. | |
1800 | * | |
1801 | * Since we don't know for sure, re-route it if that is | |
1802 | * not the case, and ask the user to report if the | |
1803 | * resulting voltage is sane. | |
1804 | */ | |
1805 | if (!(reg2C & (1 << 1))) { | |
1806 | reg2C |= (1 << 1); | |
1807 | superio_outb(IT87_SIO_PINX2_REG, reg2C); | |
1808 | pr_notice("Routing internal VCCH5V to in7.\n"); | |
1809 | } | |
1810 | pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n"); | |
1811 | pr_notice("Please report if it displays a reasonable voltage.\n"); | |
1812 | } | |
0531d98b GR |
1813 | |
1814 | if (reg2C & (1 << 0)) | |
1815 | sio_data->internal |= (1 << 0); | |
1816 | if (reg2C & (1 << 1)) | |
1817 | sio_data->internal |= (1 << 1); | |
1818 | ||
1819 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
1820 | ||
895ff267 | 1821 | } else { |
87673dd7 | 1822 | int reg; |
9172b5d1 | 1823 | bool uart6; |
87673dd7 JD |
1824 | |
1825 | superio_select(GPIO); | |
44c1bcd4 | 1826 | |
895ff267 | 1827 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
0531d98b GR |
1828 | if (sio_data->type == it8721 || sio_data->type == it8728 || |
1829 | sio_data->type == it8782) { | |
16b5dda2 | 1830 | /* |
0531d98b GR |
1831 | * IT8721F/IT8758E, and IT8782F don't have VID pins |
1832 | * at all, not sure about the IT8728F. | |
16b5dda2 | 1833 | */ |
895ff267 | 1834 | sio_data->skip_vid = 1; |
44c1bcd4 JD |
1835 | } else { |
1836 | /* We need at least 4 VID pins */ | |
1837 | if (reg & 0x0f) { | |
a8ca1037 | 1838 | pr_info("VID is disabled (pins used for GPIO)\n"); |
44c1bcd4 JD |
1839 | sio_data->skip_vid = 1; |
1840 | } | |
895ff267 JD |
1841 | } |
1842 | ||
591ec650 JD |
1843 | /* Check if fan3 is there or not */ |
1844 | if (reg & (1 << 6)) | |
1845 | sio_data->skip_pwm |= (1 << 2); | |
1846 | if (reg & (1 << 7)) | |
1847 | sio_data->skip_fan |= (1 << 2); | |
1848 | ||
1849 | /* Check if fan2 is there or not */ | |
1850 | reg = superio_inb(IT87_SIO_GPIO5_REG); | |
1851 | if (reg & (1 << 1)) | |
1852 | sio_data->skip_pwm |= (1 << 1); | |
1853 | if (reg & (1 << 2)) | |
1854 | sio_data->skip_fan |= (1 << 1); | |
1855 | ||
895ff267 JD |
1856 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1857 | && !(sio_data->skip_vid)) | |
b74f3fdd | 1858 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1859 | |
1860 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
9172b5d1 GR |
1861 | |
1862 | uart6 = sio_data->type == it8782 && (reg & (1 << 2)); | |
1863 | ||
436cad2a JD |
1864 | /* |
1865 | * The IT8720F has no VIN7 pin, so VCCH should always be | |
1866 | * routed internally to VIN7 with an internal divider. | |
1867 | * Curiously, there still is a configuration bit to control | |
1868 | * this, which means it can be set incorrectly. And even | |
1869 | * more curiously, many boards out there are improperly | |
1870 | * configured, even though the IT8720F datasheet claims | |
1871 | * that the internal routing of VCCH to VIN7 is the default | |
1872 | * setting. So we force the internal routing in this case. | |
0531d98b GR |
1873 | * |
1874 | * On IT8782F, VIN7 is multiplexed with one of the UART6 pins. | |
9172b5d1 GR |
1875 | * If UART6 is enabled, re-route VIN7 to the internal divider |
1876 | * if that is not already the case. | |
436cad2a | 1877 | */ |
9172b5d1 | 1878 | if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) { |
436cad2a JD |
1879 | reg |= (1 << 1); |
1880 | superio_outb(IT87_SIO_PINX2_REG, reg); | |
a8ca1037 | 1881 | pr_notice("Routing internal VCCH to in7\n"); |
436cad2a | 1882 | } |
87673dd7 | 1883 | if (reg & (1 << 0)) |
738e5e05 | 1884 | sio_data->internal |= (1 << 0); |
16b5dda2 JD |
1885 | if ((reg & (1 << 1)) || sio_data->type == it8721 || |
1886 | sio_data->type == it8728) | |
738e5e05 | 1887 | sio_data->internal |= (1 << 1); |
d9b327c3 | 1888 | |
9172b5d1 GR |
1889 | /* |
1890 | * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7. | |
1891 | * While VIN7 can be routed to the internal voltage divider, | |
1892 | * VIN5 and VIN6 are not available if UART6 is enabled. | |
4573acbc GR |
1893 | * |
1894 | * Also, temp3 is not available if UART6 is enabled and TEMPIN3 | |
1895 | * is the temperature source. Since we can not read the | |
1896 | * temperature source here, skip_temp is preliminary. | |
9172b5d1 | 1897 | */ |
4573acbc | 1898 | if (uart6) { |
9172b5d1 | 1899 | sio_data->skip_in |= (1 << 5) | (1 << 6); |
4573acbc GR |
1900 | sio_data->skip_temp |= (1 << 2); |
1901 | } | |
9172b5d1 | 1902 | |
d9b327c3 | 1903 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
87673dd7 | 1904 | } |
d9b327c3 | 1905 | if (sio_data->beep_pin) |
a8ca1037 | 1906 | pr_info("Beeping is supported\n"); |
87673dd7 | 1907 | |
98dd22c3 JD |
1908 | /* Disable specific features based on DMI strings */ |
1909 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1910 | board_name = dmi_get_system_info(DMI_BOARD_NAME); | |
1911 | if (board_vendor && board_name) { | |
1912 | if (strcmp(board_vendor, "nVIDIA") == 0 | |
1913 | && strcmp(board_name, "FN68PT") == 0) { | |
4a0d71cf GR |
1914 | /* |
1915 | * On the Shuttle SN68PT, FAN_CTL2 is apparently not | |
1916 | * connected to a fan, but to something else. One user | |
1917 | * has reported instant system power-off when changing | |
1918 | * the PWM2 duty cycle, so we disable it. | |
1919 | * I use the board name string as the trigger in case | |
1920 | * the same board is ever used in other systems. | |
1921 | */ | |
a8ca1037 | 1922 | pr_info("Disabling pwm2 due to hardware constraints\n"); |
98dd22c3 JD |
1923 | sio_data->skip_pwm = (1 << 1); |
1924 | } | |
1925 | } | |
1926 | ||
1da177e4 LT |
1927 | exit: |
1928 | superio_exit(); | |
1929 | return err; | |
1930 | } | |
1931 | ||
723a0aa0 JD |
1932 | static void it87_remove_files(struct device *dev) |
1933 | { | |
1934 | struct it87_data *data = platform_get_drvdata(pdev); | |
1935 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 JD |
1936 | int i; |
1937 | ||
1938 | sysfs_remove_group(&dev->kobj, &it87_group); | |
9172b5d1 GR |
1939 | for (i = 0; i < 9; i++) { |
1940 | if (sio_data->skip_in & (1 << i)) | |
1941 | continue; | |
1942 | sysfs_remove_group(&dev->kobj, &it87_group_in[i]); | |
1943 | if (it87_attributes_in_beep[i]) | |
1944 | sysfs_remove_file(&dev->kobj, | |
1945 | it87_attributes_in_beep[i]); | |
1946 | } | |
4573acbc GR |
1947 | for (i = 0; i < 3; i++) { |
1948 | if (!(data->has_temp & (1 << i))) | |
1949 | continue; | |
1950 | sysfs_remove_group(&dev->kobj, &it87_group_temp[i]); | |
161d898a GR |
1951 | if (has_temp_offset(data)) |
1952 | sysfs_remove_file(&dev->kobj, | |
1953 | it87_attributes_temp_offset[i]); | |
4573acbc GR |
1954 | if (sio_data->beep_pin) |
1955 | sysfs_remove_file(&dev->kobj, | |
1956 | it87_attributes_temp_beep[i]); | |
1957 | } | |
723a0aa0 JD |
1958 | for (i = 0; i < 5; i++) { |
1959 | if (!(data->has_fan & (1 << i))) | |
1960 | continue; | |
e1169ba0 | 1961 | sysfs_remove_group(&dev->kobj, &it87_group_fan[i]); |
d9b327c3 JD |
1962 | if (sio_data->beep_pin) |
1963 | sysfs_remove_file(&dev->kobj, | |
1964 | it87_attributes_fan_beep[i]); | |
e1169ba0 GR |
1965 | if (i < 3 && !has_16bit_fans(data)) |
1966 | sysfs_remove_file(&dev->kobj, | |
1967 | it87_attributes_fan_div[i]); | |
723a0aa0 JD |
1968 | } |
1969 | for (i = 0; i < 3; i++) { | |
1970 | if (sio_data->skip_pwm & (1 << 0)) | |
1971 | continue; | |
1972 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); | |
4f3f51bc JD |
1973 | if (has_old_autopwm(data)) |
1974 | sysfs_remove_group(&dev->kobj, | |
1975 | &it87_group_autopwm[i]); | |
723a0aa0 | 1976 | } |
6a8d7acf JD |
1977 | if (!sio_data->skip_vid) |
1978 | sysfs_remove_group(&dev->kobj, &it87_group_vid); | |
738e5e05 | 1979 | sysfs_remove_group(&dev->kobj, &it87_group_label); |
723a0aa0 JD |
1980 | } |
1981 | ||
6c931ae1 | 1982 | static int it87_probe(struct platform_device *pdev) |
1da177e4 | 1983 | { |
1da177e4 | 1984 | struct it87_data *data; |
b74f3fdd | 1985 | struct resource *res; |
1986 | struct device *dev = &pdev->dev; | |
1987 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 | 1988 | int err = 0, i; |
1da177e4 | 1989 | int enable_pwm_interface; |
d9b327c3 | 1990 | int fan_beep_need_rw; |
b74f3fdd | 1991 | |
1992 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
62a1d05f GR |
1993 | if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT, |
1994 | DRVNAME)) { | |
b74f3fdd | 1995 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1996 | (unsigned long)res->start, | |
87b4b663 | 1997 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
62a1d05f | 1998 | return -EBUSY; |
8e9afcbb | 1999 | } |
1da177e4 | 2000 | |
62a1d05f GR |
2001 | data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL); |
2002 | if (!data) | |
2003 | return -ENOMEM; | |
1da177e4 | 2004 | |
b74f3fdd | 2005 | data->addr = res->start; |
2006 | data->type = sio_data->type; | |
483db43e | 2007 | data->features = it87_devices[sio_data->type].features; |
5d8d2f2b | 2008 | data->peci_mask = it87_devices[sio_data->type].peci_mask; |
19529784 | 2009 | data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask; |
483db43e GR |
2010 | data->name = it87_devices[sio_data->type].name; |
2011 | /* | |
2012 | * IT8705F Datasheet 0.4.1, 3h == Version G. | |
2013 | * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. | |
2014 | * These are the first revisions with 16-bit tachometer support. | |
2015 | */ | |
2016 | switch (data->type) { | |
2017 | case it87: | |
2018 | if (sio_data->revision >= 0x03) { | |
2019 | data->features &= ~FEAT_OLD_AUTOPWM; | |
2020 | data->features |= FEAT_16BIT_FANS; | |
2021 | } | |
2022 | break; | |
2023 | case it8712: | |
2024 | if (sio_data->revision >= 0x08) { | |
2025 | data->features &= ~FEAT_OLD_AUTOPWM; | |
2026 | data->features |= FEAT_16BIT_FANS; | |
2027 | } | |
2028 | break; | |
2029 | default: | |
2030 | break; | |
2031 | } | |
1da177e4 LT |
2032 | |
2033 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 2034 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
62a1d05f GR |
2035 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) |
2036 | return -ENODEV; | |
1da177e4 | 2037 | |
b74f3fdd | 2038 | platform_set_drvdata(pdev, data); |
1da177e4 | 2039 | |
9a61bf63 | 2040 | mutex_init(&data->update_lock); |
1da177e4 | 2041 | |
1da177e4 | 2042 | /* Check PWM configuration */ |
b74f3fdd | 2043 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 | 2044 | |
44c1bcd4 | 2045 | /* Starting with IT8721F, we handle scaling of internal voltages */ |
16b5dda2 | 2046 | if (has_12mv_adc(data)) { |
44c1bcd4 JD |
2047 | if (sio_data->internal & (1 << 0)) |
2048 | data->in_scaled |= (1 << 3); /* in3 is AVCC */ | |
2049 | if (sio_data->internal & (1 << 1)) | |
2050 | data->in_scaled |= (1 << 7); /* in7 is VSB */ | |
2051 | if (sio_data->internal & (1 << 2)) | |
2052 | data->in_scaled |= (1 << 8); /* in8 is Vbat */ | |
0531d98b GR |
2053 | } else if (sio_data->type == it8782 || sio_data->type == it8783) { |
2054 | if (sio_data->internal & (1 << 0)) | |
2055 | data->in_scaled |= (1 << 3); /* in3 is VCC5V */ | |
2056 | if (sio_data->internal & (1 << 1)) | |
2057 | data->in_scaled |= (1 << 7); /* in7 is VCCH5V */ | |
44c1bcd4 JD |
2058 | } |
2059 | ||
4573acbc GR |
2060 | data->has_temp = 0x07; |
2061 | if (sio_data->skip_temp & (1 << 2)) { | |
2062 | if (sio_data->type == it8782 | |
2063 | && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80)) | |
2064 | data->has_temp &= ~(1 << 2); | |
2065 | } | |
2066 | ||
1da177e4 | 2067 | /* Initialize the IT87 chip */ |
b74f3fdd | 2068 | it87_init_device(pdev); |
1da177e4 LT |
2069 | |
2070 | /* Register sysfs hooks */ | |
5f2dc798 JD |
2071 | err = sysfs_create_group(&dev->kobj, &it87_group); |
2072 | if (err) | |
62a1d05f | 2073 | return err; |
17d648bf | 2074 | |
9172b5d1 GR |
2075 | for (i = 0; i < 9; i++) { |
2076 | if (sio_data->skip_in & (1 << i)) | |
2077 | continue; | |
2078 | err = sysfs_create_group(&dev->kobj, &it87_group_in[i]); | |
2079 | if (err) | |
62a1d05f | 2080 | goto error; |
9172b5d1 GR |
2081 | if (sio_data->beep_pin && it87_attributes_in_beep[i]) { |
2082 | err = sysfs_create_file(&dev->kobj, | |
2083 | it87_attributes_in_beep[i]); | |
2084 | if (err) | |
62a1d05f | 2085 | goto error; |
9172b5d1 GR |
2086 | } |
2087 | } | |
2088 | ||
4573acbc GR |
2089 | for (i = 0; i < 3; i++) { |
2090 | if (!(data->has_temp & (1 << i))) | |
2091 | continue; | |
2092 | err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]); | |
d9b327c3 | 2093 | if (err) |
62a1d05f | 2094 | goto error; |
161d898a GR |
2095 | if (has_temp_offset(data)) { |
2096 | err = sysfs_create_file(&dev->kobj, | |
2097 | it87_attributes_temp_offset[i]); | |
2098 | if (err) | |
2099 | goto error; | |
2100 | } | |
4573acbc GR |
2101 | if (sio_data->beep_pin) { |
2102 | err = sysfs_create_file(&dev->kobj, | |
2103 | it87_attributes_temp_beep[i]); | |
2104 | if (err) | |
2105 | goto error; | |
2106 | } | |
d9b327c3 JD |
2107 | } |
2108 | ||
9060f8bd | 2109 | /* Do not create fan files for disabled fans */ |
d9b327c3 | 2110 | fan_beep_need_rw = 1; |
723a0aa0 JD |
2111 | for (i = 0; i < 5; i++) { |
2112 | if (!(data->has_fan & (1 << i))) | |
2113 | continue; | |
e1169ba0 | 2114 | err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]); |
723a0aa0 | 2115 | if (err) |
62a1d05f | 2116 | goto error; |
d9b327c3 | 2117 | |
e1169ba0 GR |
2118 | if (i < 3 && !has_16bit_fans(data)) { |
2119 | err = sysfs_create_file(&dev->kobj, | |
2120 | it87_attributes_fan_div[i]); | |
2121 | if (err) | |
2122 | goto error; | |
2123 | } | |
2124 | ||
d9b327c3 JD |
2125 | if (sio_data->beep_pin) { |
2126 | err = sysfs_create_file(&dev->kobj, | |
2127 | it87_attributes_fan_beep[i]); | |
2128 | if (err) | |
62a1d05f | 2129 | goto error; |
d9b327c3 JD |
2130 | if (!fan_beep_need_rw) |
2131 | continue; | |
2132 | ||
4a0d71cf GR |
2133 | /* |
2134 | * As we have a single beep enable bit for all fans, | |
d9b327c3 | 2135 | * only the first enabled fan has a writable attribute |
4a0d71cf GR |
2136 | * for it. |
2137 | */ | |
d9b327c3 JD |
2138 | if (sysfs_chmod_file(&dev->kobj, |
2139 | it87_attributes_fan_beep[i], | |
2140 | S_IRUGO | S_IWUSR)) | |
2141 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", | |
2142 | i + 1); | |
2143 | fan_beep_need_rw = 0; | |
2144 | } | |
17d648bf JD |
2145 | } |
2146 | ||
1da177e4 | 2147 | if (enable_pwm_interface) { |
723a0aa0 JD |
2148 | for (i = 0; i < 3; i++) { |
2149 | if (sio_data->skip_pwm & (1 << i)) | |
2150 | continue; | |
2151 | err = sysfs_create_group(&dev->kobj, | |
2152 | &it87_group_pwm[i]); | |
2153 | if (err) | |
62a1d05f | 2154 | goto error; |
4f3f51bc JD |
2155 | |
2156 | if (!has_old_autopwm(data)) | |
2157 | continue; | |
2158 | err = sysfs_create_group(&dev->kobj, | |
2159 | &it87_group_autopwm[i]); | |
2160 | if (err) | |
62a1d05f | 2161 | goto error; |
98dd22c3 | 2162 | } |
1da177e4 LT |
2163 | } |
2164 | ||
895ff267 | 2165 | if (!sio_data->skip_vid) { |
303760b4 | 2166 | data->vrm = vid_which_vrm(); |
87673dd7 | 2167 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 2168 | data->vid = sio_data->vid_value; |
6a8d7acf JD |
2169 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
2170 | if (err) | |
62a1d05f | 2171 | goto error; |
87808be4 JD |
2172 | } |
2173 | ||
738e5e05 JD |
2174 | /* Export labels for internal sensors */ |
2175 | for (i = 0; i < 3; i++) { | |
2176 | if (!(sio_data->internal & (1 << i))) | |
2177 | continue; | |
2178 | err = sysfs_create_file(&dev->kobj, | |
2179 | it87_attributes_label[i]); | |
2180 | if (err) | |
62a1d05f | 2181 | goto error; |
738e5e05 JD |
2182 | } |
2183 | ||
1beeffe4 TJ |
2184 | data->hwmon_dev = hwmon_device_register(dev); |
2185 | if (IS_ERR(data->hwmon_dev)) { | |
2186 | err = PTR_ERR(data->hwmon_dev); | |
62a1d05f | 2187 | goto error; |
1da177e4 LT |
2188 | } |
2189 | ||
2190 | return 0; | |
2191 | ||
62a1d05f | 2192 | error: |
723a0aa0 | 2193 | it87_remove_files(dev); |
1da177e4 LT |
2194 | return err; |
2195 | } | |
2196 | ||
281dfd0b | 2197 | static int it87_remove(struct platform_device *pdev) |
1da177e4 | 2198 | { |
b74f3fdd | 2199 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2200 | |
1beeffe4 | 2201 | hwmon_device_unregister(data->hwmon_dev); |
723a0aa0 | 2202 | it87_remove_files(&pdev->dev); |
943b0830 | 2203 | |
1da177e4 LT |
2204 | return 0; |
2205 | } | |
2206 | ||
4a0d71cf GR |
2207 | /* |
2208 | * Must be called with data->update_lock held, except during initialization. | |
2209 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, | |
2210 | * would slow down the IT87 access and should not be necessary. | |
2211 | */ | |
b74f3fdd | 2212 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 2213 | { |
b74f3fdd | 2214 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2215 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
2216 | } |
2217 | ||
4a0d71cf GR |
2218 | /* |
2219 | * Must be called with data->update_lock held, except during initialization. | |
2220 | * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, | |
2221 | * would slow down the IT87 access and should not be necessary. | |
2222 | */ | |
b74f3fdd | 2223 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 2224 | { |
b74f3fdd | 2225 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
2226 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
2227 | } |
2228 | ||
2229 | /* Return 1 if and only if the PWM interface is safe to use */ | |
6c931ae1 | 2230 | static int it87_check_pwm(struct device *dev) |
1da177e4 | 2231 | { |
b74f3fdd | 2232 | struct it87_data *data = dev_get_drvdata(dev); |
4a0d71cf GR |
2233 | /* |
2234 | * Some BIOSes fail to correctly configure the IT87 fans. All fans off | |
1da177e4 | 2235 | * and polarity set to active low is sign that this is the case so we |
4a0d71cf GR |
2236 | * disable pwm control to protect the user. |
2237 | */ | |
b74f3fdd | 2238 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
2239 | if ((tmp & 0x87) == 0) { |
2240 | if (fix_pwm_polarity) { | |
4a0d71cf GR |
2241 | /* |
2242 | * The user asks us to attempt a chip reconfiguration. | |
1da177e4 | 2243 | * This means switching to active high polarity and |
4a0d71cf GR |
2244 | * inverting all fan speed values. |
2245 | */ | |
1da177e4 LT |
2246 | int i; |
2247 | u8 pwm[3]; | |
2248 | ||
2249 | for (i = 0; i < 3; i++) | |
b74f3fdd | 2250 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
2251 | IT87_REG_PWM(i)); |
2252 | ||
4a0d71cf GR |
2253 | /* |
2254 | * If any fan is in automatic pwm mode, the polarity | |
1da177e4 LT |
2255 | * might be correct, as suspicious as it seems, so we |
2256 | * better don't change anything (but still disable the | |
4a0d71cf GR |
2257 | * PWM interface). |
2258 | */ | |
1da177e4 | 2259 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { |
1d9bcf6a GR |
2260 | dev_info(dev, |
2261 | "Reconfiguring PWM to active high polarity\n"); | |
b74f3fdd | 2262 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
2263 | tmp | 0x87); |
2264 | for (i = 0; i < 3; i++) | |
b74f3fdd | 2265 | it87_write_value(data, |
1da177e4 LT |
2266 | IT87_REG_PWM(i), |
2267 | 0x7f & ~pwm[i]); | |
2268 | return 1; | |
2269 | } | |
2270 | ||
1d9bcf6a GR |
2271 | dev_info(dev, |
2272 | "PWM configuration is too broken to be fixed\n"); | |
1da177e4 LT |
2273 | } |
2274 | ||
1d9bcf6a GR |
2275 | dev_info(dev, |
2276 | "Detected broken BIOS defaults, disabling PWM interface\n"); | |
1da177e4 LT |
2277 | return 0; |
2278 | } else if (fix_pwm_polarity) { | |
1d9bcf6a GR |
2279 | dev_info(dev, |
2280 | "PWM configuration looks sane, won't touch\n"); | |
1da177e4 LT |
2281 | } |
2282 | ||
2283 | return 1; | |
2284 | } | |
2285 | ||
2286 | /* Called when we have found a new IT87. */ | |
6c931ae1 | 2287 | static void it87_init_device(struct platform_device *pdev) |
1da177e4 | 2288 | { |
591ec650 | 2289 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
b74f3fdd | 2290 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2291 | int tmp, i; |
591ec650 | 2292 | u8 mask; |
1da177e4 | 2293 | |
4a0d71cf GR |
2294 | /* |
2295 | * For each PWM channel: | |
b99883dc JD |
2296 | * - If it is in automatic mode, setting to manual mode should set |
2297 | * the fan to full speed by default. | |
2298 | * - If it is in manual mode, we need a mapping to temperature | |
2299 | * channels to use when later setting to automatic mode later. | |
2300 | * Use a 1:1 mapping by default (we are clueless.) | |
2301 | * In both cases, the value can (and should) be changed by the user | |
6229cdb2 JD |
2302 | * prior to switching to a different mode. |
2303 | * Note that this is no longer needed for the IT8721F and later, as | |
2304 | * these have separate registers for the temperature mapping and the | |
4a0d71cf GR |
2305 | * manual duty cycle. |
2306 | */ | |
1da177e4 | 2307 | for (i = 0; i < 3; i++) { |
b99883dc JD |
2308 | data->pwm_temp_map[i] = i; |
2309 | data->pwm_duty[i] = 0x7f; /* Full speed */ | |
4f3f51bc | 2310 | data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
1da177e4 LT |
2311 | } |
2312 | ||
4a0d71cf GR |
2313 | /* |
2314 | * Some chips seem to have default value 0xff for all limit | |
c5df9b7a JD |
2315 | * registers. For low voltage limits it makes no sense and triggers |
2316 | * alarms, so change to 0 instead. For high temperature limits, it | |
2317 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
4a0d71cf GR |
2318 | * but is still confusing, so change to 127 degrees C. |
2319 | */ | |
c5df9b7a | 2320 | for (i = 0; i < 8; i++) { |
b74f3fdd | 2321 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 2322 | if (tmp == 0xff) |
b74f3fdd | 2323 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
2324 | } |
2325 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 2326 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 2327 | if (tmp == 0xff) |
b74f3fdd | 2328 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
2329 | } |
2330 | ||
4a0d71cf GR |
2331 | /* |
2332 | * Temperature channels are not forcibly enabled, as they can be | |
a00afb97 JD |
2333 | * set to two different sensor types and we can't guess which one |
2334 | * is correct for a given system. These channels can be enabled at | |
4a0d71cf GR |
2335 | * run-time through the temp{1-3}_type sysfs accessors if needed. |
2336 | */ | |
1da177e4 LT |
2337 | |
2338 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 2339 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
2340 | if ((tmp & 0xff) == 0) { |
2341 | /* Enable all voltage monitors */ | |
b74f3fdd | 2342 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
2343 | } |
2344 | ||
2345 | /* Check if tachometers are reset manually or by some reason */ | |
591ec650 | 2346 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
b74f3fdd | 2347 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
591ec650 | 2348 | if ((data->fan_main_ctrl & mask) == 0) { |
1da177e4 | 2349 | /* Enable all fan tachometers */ |
591ec650 | 2350 | data->fan_main_ctrl |= mask; |
5f2dc798 JD |
2351 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
2352 | data->fan_main_ctrl); | |
1da177e4 | 2353 | } |
9060f8bd | 2354 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 2355 | |
17d648bf | 2356 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 2357 | if (has_16bit_fans(data)) { |
b74f3fdd | 2358 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 2359 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 2360 | dev_dbg(&pdev->dev, |
17d648bf | 2361 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 2362 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
2363 | tmp | 0x07); |
2364 | } | |
0531d98b GR |
2365 | /* IT8705F, IT8782F, and IT8783E/F only support three fans. */ |
2366 | if (data->type != it87 && data->type != it8782 && | |
2367 | data->type != it8783) { | |
816d8c6a AP |
2368 | if (tmp & (1 << 4)) |
2369 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
2370 | if (tmp & (1 << 5)) | |
2371 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
2372 | } | |
17d648bf JD |
2373 | } |
2374 | ||
591ec650 JD |
2375 | /* Fan input pins may be used for alternative functions */ |
2376 | data->has_fan &= ~sio_data->skip_fan; | |
2377 | ||
1da177e4 | 2378 | /* Start monitoring */ |
b74f3fdd | 2379 | it87_write_value(data, IT87_REG_CONFIG, |
41002f8d | 2380 | (it87_read_value(data, IT87_REG_CONFIG) & 0x3e) |
1da177e4 LT |
2381 | | (update_vbat ? 0x41 : 0x01)); |
2382 | } | |
2383 | ||
b99883dc JD |
2384 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
2385 | { | |
2386 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); | |
16b5dda2 | 2387 | if (has_newer_autopwm(data)) { |
b99883dc | 2388 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
6229cdb2 JD |
2389 | data->pwm_duty[nr] = it87_read_value(data, |
2390 | IT87_REG_PWM_DUTY(nr)); | |
2391 | } else { | |
2392 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
2393 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; | |
2394 | else /* Manual mode */ | |
2395 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; | |
2396 | } | |
4f3f51bc JD |
2397 | |
2398 | if (has_old_autopwm(data)) { | |
2399 | int i; | |
2400 | ||
2401 | for (i = 0; i < 5 ; i++) | |
2402 | data->auto_temp[nr][i] = it87_read_value(data, | |
2403 | IT87_REG_AUTO_TEMP(nr, i)); | |
2404 | for (i = 0; i < 3 ; i++) | |
2405 | data->auto_pwm[nr][i] = it87_read_value(data, | |
2406 | IT87_REG_AUTO_PWM(nr, i)); | |
2407 | } | |
b99883dc JD |
2408 | } |
2409 | ||
1da177e4 LT |
2410 | static struct it87_data *it87_update_device(struct device *dev) |
2411 | { | |
b74f3fdd | 2412 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
2413 | int i; |
2414 | ||
9a61bf63 | 2415 | mutex_lock(&data->update_lock); |
1da177e4 LT |
2416 | |
2417 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
2418 | || !data->valid) { | |
1da177e4 | 2419 | if (update_vbat) { |
4a0d71cf GR |
2420 | /* |
2421 | * Cleared after each update, so reenable. Value | |
2422 | * returned by this read will be previous value | |
2423 | */ | |
b74f3fdd | 2424 | it87_write_value(data, IT87_REG_CONFIG, |
5f2dc798 | 2425 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
1da177e4 LT |
2426 | } |
2427 | for (i = 0; i <= 7; i++) { | |
929c6a56 | 2428 | data->in[i][0] = |
5f2dc798 | 2429 | it87_read_value(data, IT87_REG_VIN(i)); |
929c6a56 | 2430 | data->in[i][1] = |
5f2dc798 | 2431 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
929c6a56 | 2432 | data->in[i][2] = |
5f2dc798 | 2433 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 2434 | } |
3543a53f | 2435 | /* in8 (battery) has no limit registers */ |
929c6a56 | 2436 | data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 2437 | |
c7f1f716 | 2438 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
2439 | /* Skip disabled fans */ |
2440 | if (!(data->has_fan & (1 << i))) | |
2441 | continue; | |
2442 | ||
e1169ba0 | 2443 | data->fan[i][1] = |
5f2dc798 | 2444 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
e1169ba0 | 2445 | data->fan[i][0] = it87_read_value(data, |
c7f1f716 | 2446 | IT87_REG_FAN[i]); |
17d648bf | 2447 | /* Add high byte if in 16-bit mode */ |
0475169c | 2448 | if (has_16bit_fans(data)) { |
e1169ba0 | 2449 | data->fan[i][0] |= it87_read_value(data, |
c7f1f716 | 2450 | IT87_REG_FANX[i]) << 8; |
e1169ba0 | 2451 | data->fan[i][1] |= it87_read_value(data, |
c7f1f716 | 2452 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 2453 | } |
1da177e4 LT |
2454 | } |
2455 | for (i = 0; i < 3; i++) { | |
4573acbc GR |
2456 | if (!(data->has_temp & (1 << i))) |
2457 | continue; | |
60ca385a | 2458 | data->temp[i][0] = |
5f2dc798 | 2459 | it87_read_value(data, IT87_REG_TEMP(i)); |
60ca385a | 2460 | data->temp[i][1] = |
5f2dc798 | 2461 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
60ca385a GR |
2462 | data->temp[i][2] = |
2463 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); | |
161d898a GR |
2464 | if (has_temp_offset(data)) |
2465 | data->temp[i][3] = | |
2466 | it87_read_value(data, | |
2467 | IT87_REG_TEMP_OFFSET[i]); | |
1da177e4 LT |
2468 | } |
2469 | ||
17d648bf | 2470 | /* Newer chips don't have clock dividers */ |
0475169c | 2471 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 2472 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
2473 | data->fan_div[0] = i & 0x07; |
2474 | data->fan_div[1] = (i >> 3) & 0x07; | |
2475 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
2476 | } | |
1da177e4 LT |
2477 | |
2478 | data->alarms = | |
b74f3fdd | 2479 | it87_read_value(data, IT87_REG_ALARM1) | |
2480 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
2481 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
d9b327c3 | 2482 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
b99883dc | 2483 | |
b74f3fdd | 2484 | data->fan_main_ctrl = it87_read_value(data, |
2485 | IT87_REG_FAN_MAIN_CTRL); | |
2486 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
b99883dc JD |
2487 | for (i = 0; i < 3; i++) |
2488 | it87_update_pwm_ctrl(data, i); | |
b74f3fdd | 2489 | |
2490 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
19529784 | 2491 | data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); |
4a0d71cf GR |
2492 | /* |
2493 | * The IT8705F does not have VID capability. | |
2494 | * The IT8718F and later don't use IT87_REG_VID for the | |
2495 | * same purpose. | |
2496 | */ | |
17d648bf | 2497 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 2498 | data->vid = it87_read_value(data, IT87_REG_VID); |
4a0d71cf GR |
2499 | /* |
2500 | * The older IT8712F revisions had only 5 VID pins, | |
2501 | * but we assume it is always safe to read 6 bits. | |
2502 | */ | |
17d648bf | 2503 | data->vid &= 0x3f; |
1da177e4 LT |
2504 | } |
2505 | data->last_updated = jiffies; | |
2506 | data->valid = 1; | |
2507 | } | |
2508 | ||
9a61bf63 | 2509 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
2510 | |
2511 | return data; | |
2512 | } | |
2513 | ||
b74f3fdd | 2514 | static int __init it87_device_add(unsigned short address, |
2515 | const struct it87_sio_data *sio_data) | |
2516 | { | |
2517 | struct resource res = { | |
87b4b663 BH |
2518 | .start = address + IT87_EC_OFFSET, |
2519 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 2520 | .name = DRVNAME, |
2521 | .flags = IORESOURCE_IO, | |
2522 | }; | |
2523 | int err; | |
2524 | ||
b9acb64a JD |
2525 | err = acpi_check_resource_conflict(&res); |
2526 | if (err) | |
2527 | goto exit; | |
2528 | ||
b74f3fdd | 2529 | pdev = platform_device_alloc(DRVNAME, address); |
2530 | if (!pdev) { | |
2531 | err = -ENOMEM; | |
a8ca1037 | 2532 | pr_err("Device allocation failed\n"); |
b74f3fdd | 2533 | goto exit; |
2534 | } | |
2535 | ||
2536 | err = platform_device_add_resources(pdev, &res, 1); | |
2537 | if (err) { | |
a8ca1037 | 2538 | pr_err("Device resource addition failed (%d)\n", err); |
b74f3fdd | 2539 | goto exit_device_put; |
2540 | } | |
2541 | ||
2542 | err = platform_device_add_data(pdev, sio_data, | |
2543 | sizeof(struct it87_sio_data)); | |
2544 | if (err) { | |
a8ca1037 | 2545 | pr_err("Platform data allocation failed\n"); |
b74f3fdd | 2546 | goto exit_device_put; |
2547 | } | |
2548 | ||
2549 | err = platform_device_add(pdev); | |
2550 | if (err) { | |
a8ca1037 | 2551 | pr_err("Device addition failed (%d)\n", err); |
b74f3fdd | 2552 | goto exit_device_put; |
2553 | } | |
2554 | ||
2555 | return 0; | |
2556 | ||
2557 | exit_device_put: | |
2558 | platform_device_put(pdev); | |
2559 | exit: | |
2560 | return err; | |
2561 | } | |
2562 | ||
1da177e4 LT |
2563 | static int __init sm_it87_init(void) |
2564 | { | |
b74f3fdd | 2565 | int err; |
5f2dc798 | 2566 | unsigned short isa_address = 0; |
b74f3fdd | 2567 | struct it87_sio_data sio_data; |
2568 | ||
98dd22c3 | 2569 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
b74f3fdd | 2570 | err = it87_find(&isa_address, &sio_data); |
2571 | if (err) | |
2572 | return err; | |
2573 | err = platform_driver_register(&it87_driver); | |
2574 | if (err) | |
2575 | return err; | |
fde09509 | 2576 | |
b74f3fdd | 2577 | err = it87_device_add(isa_address, &sio_data); |
5f2dc798 | 2578 | if (err) { |
b74f3fdd | 2579 | platform_driver_unregister(&it87_driver); |
2580 | return err; | |
2581 | } | |
2582 | ||
2583 | return 0; | |
1da177e4 LT |
2584 | } |
2585 | ||
2586 | static void __exit sm_it87_exit(void) | |
2587 | { | |
b74f3fdd | 2588 | platform_device_unregister(pdev); |
2589 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
2590 | } |
2591 | ||
2592 | ||
1d9bcf6a | 2593 | MODULE_AUTHOR("Chris Gauthron, Jean Delvare <khali@linux-fr.org>"); |
44c1bcd4 | 2594 | MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); |
1da177e4 LT |
2595 | module_param(update_vbat, bool, 0); |
2596 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
2597 | module_param(fix_pwm_polarity, bool, 0); | |
5f2dc798 JD |
2598 | MODULE_PARM_DESC(fix_pwm_polarity, |
2599 | "Force PWM polarity to active high (DANGEROUS)"); | |
1da177e4 LT |
2600 | MODULE_LICENSE("GPL"); |
2601 | ||
2602 | module_init(sm_it87_init); | |
2603 | module_exit(sm_it87_exit); |