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Commit | Line | Data |
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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 |
5f2dc798 JD |
22 | * Sis950 A clone of the IT8705F |
23 | * | |
24 | * Copyright (C) 2001 Chris Gauthron | |
25 | * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> | |
26 | * | |
27 | * This program is free software; you can redistribute it and/or modify | |
28 | * it under the terms of the GNU General Public License as published by | |
29 | * the Free Software Foundation; either version 2 of the License, or | |
30 | * (at your option) any later version. | |
31 | * | |
32 | * This program is distributed in the hope that it will be useful, | |
33 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
34 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
35 | * GNU General Public License for more details. | |
36 | * | |
37 | * You should have received a copy of the GNU General Public License | |
38 | * along with this program; if not, write to the Free Software | |
39 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
40 | */ | |
1da177e4 | 41 | |
a8ca1037 JP |
42 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
43 | ||
1da177e4 LT |
44 | #include <linux/module.h> |
45 | #include <linux/init.h> | |
46 | #include <linux/slab.h> | |
47 | #include <linux/jiffies.h> | |
b74f3fdd | 48 | #include <linux/platform_device.h> |
943b0830 | 49 | #include <linux/hwmon.h> |
303760b4 JD |
50 | #include <linux/hwmon-sysfs.h> |
51 | #include <linux/hwmon-vid.h> | |
943b0830 | 52 | #include <linux/err.h> |
9a61bf63 | 53 | #include <linux/mutex.h> |
87808be4 | 54 | #include <linux/sysfs.h> |
98dd22c3 JD |
55 | #include <linux/string.h> |
56 | #include <linux/dmi.h> | |
b9acb64a | 57 | #include <linux/acpi.h> |
6055fae8 | 58 | #include <linux/io.h> |
1da177e4 | 59 | |
b74f3fdd | 60 | #define DRVNAME "it87" |
1da177e4 | 61 | |
16b5dda2 | 62 | enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728 }; |
1da177e4 | 63 | |
67b671bc JD |
64 | static unsigned short force_id; |
65 | module_param(force_id, ushort, 0); | |
66 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
67 | ||
b74f3fdd | 68 | static struct platform_device *pdev; |
69 | ||
1da177e4 LT |
70 | #define REG 0x2e /* The register to read/write */ |
71 | #define DEV 0x07 /* Register: Logical device select */ | |
72 | #define VAL 0x2f /* The value to read/write */ | |
73 | #define PME 0x04 /* The device with the fan registers in it */ | |
b4da93e4 JMS |
74 | |
75 | /* The device with the IT8718F/IT8720F VID value in it */ | |
76 | #define GPIO 0x07 | |
77 | ||
1da177e4 LT |
78 | #define DEVID 0x20 /* Register: Device ID */ |
79 | #define DEVREV 0x22 /* Register: Device Revision */ | |
80 | ||
5b0380c9 | 81 | static inline int superio_inb(int reg) |
1da177e4 LT |
82 | { |
83 | outb(reg, REG); | |
84 | return inb(VAL); | |
85 | } | |
86 | ||
5b0380c9 | 87 | static inline void superio_outb(int reg, int val) |
436cad2a JD |
88 | { |
89 | outb(reg, REG); | |
90 | outb(val, VAL); | |
91 | } | |
92 | ||
1da177e4 LT |
93 | static int superio_inw(int reg) |
94 | { | |
95 | int val; | |
96 | outb(reg++, REG); | |
97 | val = inb(VAL) << 8; | |
98 | outb(reg, REG); | |
99 | val |= inb(VAL); | |
100 | return val; | |
101 | } | |
102 | ||
5b0380c9 | 103 | static inline void superio_select(int ldn) |
1da177e4 LT |
104 | { |
105 | outb(DEV, REG); | |
87673dd7 | 106 | outb(ldn, VAL); |
1da177e4 LT |
107 | } |
108 | ||
5b0380c9 | 109 | static inline int superio_enter(void) |
1da177e4 | 110 | { |
5b0380c9 NG |
111 | /* |
112 | * Try to reserve REG and REG + 1 for exclusive access. | |
113 | */ | |
114 | if (!request_muxed_region(REG, 2, DRVNAME)) | |
115 | return -EBUSY; | |
116 | ||
1da177e4 LT |
117 | outb(0x87, REG); |
118 | outb(0x01, REG); | |
119 | outb(0x55, REG); | |
120 | outb(0x55, REG); | |
5b0380c9 | 121 | return 0; |
1da177e4 LT |
122 | } |
123 | ||
5b0380c9 | 124 | static inline void superio_exit(void) |
1da177e4 LT |
125 | { |
126 | outb(0x02, REG); | |
127 | outb(0x02, VAL); | |
5b0380c9 | 128 | release_region(REG, 2); |
1da177e4 LT |
129 | } |
130 | ||
87673dd7 | 131 | /* Logical device 4 registers */ |
1da177e4 LT |
132 | #define IT8712F_DEVID 0x8712 |
133 | #define IT8705F_DEVID 0x8705 | |
17d648bf | 134 | #define IT8716F_DEVID 0x8716 |
87673dd7 | 135 | #define IT8718F_DEVID 0x8718 |
b4da93e4 | 136 | #define IT8720F_DEVID 0x8720 |
44c1bcd4 | 137 | #define IT8721F_DEVID 0x8721 |
08a8f6e9 | 138 | #define IT8726F_DEVID 0x8726 |
16b5dda2 | 139 | #define IT8728F_DEVID 0x8728 |
1da177e4 LT |
140 | #define IT87_ACT_REG 0x30 |
141 | #define IT87_BASE_REG 0x60 | |
142 | ||
87673dd7 | 143 | /* Logical device 7 registers (IT8712F and later) */ |
895ff267 | 144 | #define IT87_SIO_GPIO3_REG 0x27 |
591ec650 | 145 | #define IT87_SIO_GPIO5_REG 0x29 |
87673dd7 JD |
146 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
147 | #define IT87_SIO_VID_REG 0xfc /* VID value */ | |
d9b327c3 | 148 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
87673dd7 | 149 | |
1da177e4 | 150 | /* Update battery voltage after every reading if true */ |
90ab5ee9 | 151 | static bool update_vbat; |
1da177e4 LT |
152 | |
153 | /* Not all BIOSes properly configure the PWM registers */ | |
90ab5ee9 | 154 | static bool fix_pwm_polarity; |
1da177e4 | 155 | |
1da177e4 LT |
156 | /* Many IT87 constants specified below */ |
157 | ||
158 | /* Length of ISA address segment */ | |
159 | #define IT87_EXTENT 8 | |
160 | ||
87b4b663 BH |
161 | /* Length of ISA address segment for Environmental Controller */ |
162 | #define IT87_EC_EXTENT 2 | |
163 | ||
164 | /* Offset of EC registers from ISA base address */ | |
165 | #define IT87_EC_OFFSET 5 | |
166 | ||
167 | /* Where are the ISA address/data registers relative to the EC base address */ | |
168 | #define IT87_ADDR_REG_OFFSET 0 | |
169 | #define IT87_DATA_REG_OFFSET 1 | |
1da177e4 LT |
170 | |
171 | /*----- The IT87 registers -----*/ | |
172 | ||
173 | #define IT87_REG_CONFIG 0x00 | |
174 | ||
175 | #define IT87_REG_ALARM1 0x01 | |
176 | #define IT87_REG_ALARM2 0x02 | |
177 | #define IT87_REG_ALARM3 0x03 | |
178 | ||
b4da93e4 JMS |
179 | /* The IT8718F and IT8720F have the VID value in a different register, in |
180 | Super-I/O configuration space. */ | |
1da177e4 | 181 | #define IT87_REG_VID 0x0a |
0475169c AP |
182 | /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
183 | for fan divisors. Later IT8712F revisions must use 16-bit tachometer | |
184 | mode. */ | |
1da177e4 | 185 | #define IT87_REG_FAN_DIV 0x0b |
17d648bf | 186 | #define IT87_REG_FAN_16BIT 0x0c |
1da177e4 LT |
187 | |
188 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ | |
189 | ||
c7f1f716 JD |
190 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
191 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; | |
192 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; | |
193 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; | |
1da177e4 LT |
194 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
195 | #define IT87_REG_FAN_CTL 0x14 | |
196 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
6229cdb2 | 197 | #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
1da177e4 LT |
198 | |
199 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
200 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
201 | ||
202 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
203 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
204 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
205 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
206 | ||
1da177e4 LT |
207 | #define IT87_REG_VIN_ENABLE 0x50 |
208 | #define IT87_REG_TEMP_ENABLE 0x51 | |
d9b327c3 | 209 | #define IT87_REG_BEEP_ENABLE 0x5c |
1da177e4 LT |
210 | |
211 | #define IT87_REG_CHIPID 0x58 | |
212 | ||
4f3f51bc JD |
213 | #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
214 | #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) | |
215 | ||
1da177e4 | 216 | |
b74f3fdd | 217 | struct it87_sio_data { |
218 | enum chips type; | |
219 | /* Values read from Super-I/O config space */ | |
0475169c | 220 | u8 revision; |
b74f3fdd | 221 | u8 vid_value; |
d9b327c3 | 222 | u8 beep_pin; |
738e5e05 | 223 | u8 internal; /* Internal sensors can be labeled */ |
591ec650 | 224 | /* Features skipped based on config or DMI */ |
895ff267 | 225 | u8 skip_vid; |
591ec650 | 226 | u8 skip_fan; |
98dd22c3 | 227 | u8 skip_pwm; |
b74f3fdd | 228 | }; |
229 | ||
ed6bafbf JD |
230 | /* For each registered chip, we need to keep some data in memory. |
231 | The structure is dynamically allocated. */ | |
1da177e4 | 232 | struct it87_data { |
1beeffe4 | 233 | struct device *hwmon_dev; |
1da177e4 | 234 | enum chips type; |
0475169c | 235 | u8 revision; |
1da177e4 | 236 | |
b74f3fdd | 237 | unsigned short addr; |
238 | const char *name; | |
9a61bf63 | 239 | struct mutex update_lock; |
1da177e4 LT |
240 | char valid; /* !=0 if following fields are valid */ |
241 | unsigned long last_updated; /* In jiffies */ | |
242 | ||
44c1bcd4 | 243 | u16 in_scaled; /* Internal voltage sensors are scaled */ |
1da177e4 | 244 | u8 in[9]; /* Register value */ |
3543a53f JD |
245 | u8 in_max[8]; /* Register value */ |
246 | u8 in_min[8]; /* Register value */ | |
9060f8bd | 247 | u8 has_fan; /* Bitfield, fans enabled */ |
c7f1f716 JD |
248 | u16 fan[5]; /* Register values, possibly combined */ |
249 | u16 fan_min[5]; /* Register values, possibly combined */ | |
e267d250 JD |
250 | s8 temp[3]; /* Register value */ |
251 | s8 temp_high[3]; /* Register value */ | |
252 | s8 temp_low[3]; /* Register value */ | |
1da177e4 LT |
253 | u8 sensor; /* Register value */ |
254 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
255 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 256 | u8 vrm; |
1da177e4 | 257 | u32 alarms; /* Register encoding, combined */ |
d9b327c3 | 258 | u8 beeps; /* Register encoding */ |
1da177e4 | 259 | u8 fan_main_ctrl; /* Register value */ |
f8d0c19a | 260 | u8 fan_ctl; /* Register value */ |
b99883dc | 261 | |
6229cdb2 JD |
262 | /* The following 3 arrays correspond to the same registers up to |
263 | * the IT8720F. The meaning of bits 6-0 depends on the value of bit | |
264 | * 7, and we want to preserve settings on mode changes, so we have | |
265 | * to track all values separately. | |
266 | * Starting with the IT8721F, the manual PWM duty cycles are stored | |
267 | * in separate registers (8-bit values), so the separate tracking | |
268 | * is no longer needed, but it is still done to keep the driver | |
269 | * simple. */ | |
b99883dc | 270 | u8 pwm_ctrl[3]; /* Register value */ |
6229cdb2 | 271 | u8 pwm_duty[3]; /* Manual PWM value set by user */ |
b99883dc | 272 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
4f3f51bc JD |
273 | |
274 | /* Automatic fan speed control registers */ | |
275 | u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ | |
276 | s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ | |
1da177e4 | 277 | }; |
0df6454d | 278 | |
16b5dda2 JD |
279 | static inline int has_12mv_adc(const struct it87_data *data) |
280 | { | |
281 | /* | |
282 | * IT8721F and later have a 12 mV ADC, also with internal scaling | |
283 | * on selected inputs. | |
284 | */ | |
285 | return data->type == it8721 | |
286 | || data->type == it8728; | |
287 | } | |
288 | ||
289 | static inline int has_newer_autopwm(const struct it87_data *data) | |
290 | { | |
291 | /* | |
292 | * IT8721F and later have separate registers for the temperature | |
293 | * mapping and the manual duty cycle. | |
294 | */ | |
295 | return data->type == it8721 | |
296 | || data->type == it8728; | |
297 | } | |
298 | ||
44c1bcd4 JD |
299 | static u8 in_to_reg(const struct it87_data *data, int nr, long val) |
300 | { | |
301 | long lsb; | |
302 | ||
16b5dda2 | 303 | if (has_12mv_adc(data)) { |
44c1bcd4 JD |
304 | if (data->in_scaled & (1 << nr)) |
305 | lsb = 24; | |
306 | else | |
307 | lsb = 12; | |
308 | } else | |
309 | lsb = 16; | |
310 | ||
311 | val = DIV_ROUND_CLOSEST(val, lsb); | |
312 | return SENSORS_LIMIT(val, 0, 255); | |
313 | } | |
314 | ||
315 | static int in_from_reg(const struct it87_data *data, int nr, int val) | |
316 | { | |
16b5dda2 | 317 | if (has_12mv_adc(data)) { |
44c1bcd4 JD |
318 | if (data->in_scaled & (1 << nr)) |
319 | return val * 24; | |
320 | else | |
321 | return val * 12; | |
322 | } else | |
323 | return val * 16; | |
324 | } | |
0df6454d JD |
325 | |
326 | static inline u8 FAN_TO_REG(long rpm, int div) | |
327 | { | |
328 | if (rpm == 0) | |
329 | return 255; | |
330 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
331 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
332 | 254); | |
333 | } | |
334 | ||
335 | static inline u16 FAN16_TO_REG(long rpm) | |
336 | { | |
337 | if (rpm == 0) | |
338 | return 0xffff; | |
339 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
340 | } | |
341 | ||
342 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ | |
343 | 1350000 / ((val) * (div))) | |
344 | /* The divider is fixed to 2 in 16-bit mode */ | |
345 | #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ | |
346 | 1350000 / ((val) * 2)) | |
347 | ||
348 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \ | |
349 | ((val) + 500) / 1000), -128, 127)) | |
350 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
351 | ||
44c1bcd4 JD |
352 | static u8 pwm_to_reg(const struct it87_data *data, long val) |
353 | { | |
16b5dda2 | 354 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
355 | return val; |
356 | else | |
357 | return val >> 1; | |
358 | } | |
359 | ||
360 | static int pwm_from_reg(const struct it87_data *data, u8 reg) | |
361 | { | |
16b5dda2 | 362 | if (has_newer_autopwm(data)) |
44c1bcd4 JD |
363 | return reg; |
364 | else | |
365 | return (reg & 0x7f) << 1; | |
366 | } | |
367 | ||
0df6454d JD |
368 | |
369 | static int DIV_TO_REG(int val) | |
370 | { | |
371 | int answer = 0; | |
372 | while (answer < 7 && (val >>= 1)) | |
373 | answer++; | |
374 | return answer; | |
375 | } | |
376 | #define DIV_FROM_REG(val) (1 << (val)) | |
377 | ||
378 | static const unsigned int pwm_freq[8] = { | |
379 | 48000000 / 128, | |
380 | 24000000 / 128, | |
381 | 12000000 / 128, | |
382 | 8000000 / 128, | |
383 | 6000000 / 128, | |
384 | 3000000 / 128, | |
385 | 1500000 / 128, | |
386 | 750000 / 128, | |
387 | }; | |
1da177e4 | 388 | |
0475169c AP |
389 | static inline int has_16bit_fans(const struct it87_data *data) |
390 | { | |
816d8c6a | 391 | /* IT8705F Datasheet 0.4.1, 3h == Version G. |
859b9ef3 | 392 | IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
816d8c6a AP |
393 | These are the first revisions with 16bit tachometer support. */ |
394 | return (data->type == it87 && data->revision >= 0x03) | |
859b9ef3 | 395 | || (data->type == it8712 && data->revision >= 0x08) |
0475169c | 396 | || data->type == it8716 |
b4da93e4 | 397 | || data->type == it8718 |
44c1bcd4 | 398 | || data->type == it8720 |
16b5dda2 JD |
399 | || data->type == it8721 |
400 | || data->type == it8728; | |
0475169c | 401 | } |
1da177e4 | 402 | |
4f3f51bc JD |
403 | static inline int has_old_autopwm(const struct it87_data *data) |
404 | { | |
405 | /* The old automatic fan speed control interface is implemented | |
406 | by IT8705F chips up to revision F and IT8712F chips up to | |
407 | revision G. */ | |
408 | return (data->type == it87 && data->revision < 0x03) | |
409 | || (data->type == it8712 && data->revision < 0x08); | |
410 | } | |
411 | ||
b74f3fdd | 412 | static int it87_probe(struct platform_device *pdev); |
d0546128 | 413 | static int __devexit it87_remove(struct platform_device *pdev); |
1da177e4 | 414 | |
b74f3fdd | 415 | static int it87_read_value(struct it87_data *data, u8 reg); |
416 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 417 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 418 | static int it87_check_pwm(struct device *dev); |
419 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
420 | |
421 | ||
b74f3fdd | 422 | static struct platform_driver it87_driver = { |
cdaf7934 | 423 | .driver = { |
87218842 | 424 | .owner = THIS_MODULE, |
b74f3fdd | 425 | .name = DRVNAME, |
cdaf7934 | 426 | }, |
b74f3fdd | 427 | .probe = it87_probe, |
428 | .remove = __devexit_p(it87_remove), | |
fde09509 JD |
429 | }; |
430 | ||
20ad93d4 JD |
431 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
432 | char *buf) | |
1da177e4 | 433 | { |
20ad93d4 JD |
434 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
435 | int nr = sensor_attr->index; | |
436 | ||
1da177e4 | 437 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 438 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr])); |
1da177e4 LT |
439 | } |
440 | ||
20ad93d4 JD |
441 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
442 | char *buf) | |
1da177e4 | 443 | { |
20ad93d4 JD |
444 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
445 | int nr = sensor_attr->index; | |
446 | ||
1da177e4 | 447 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 448 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_min[nr])); |
1da177e4 LT |
449 | } |
450 | ||
20ad93d4 JD |
451 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
452 | char *buf) | |
1da177e4 | 453 | { |
20ad93d4 JD |
454 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
455 | int nr = sensor_attr->index; | |
456 | ||
1da177e4 | 457 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 458 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_max[nr])); |
1da177e4 LT |
459 | } |
460 | ||
20ad93d4 JD |
461 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
462 | const char *buf, size_t count) | |
1da177e4 | 463 | { |
20ad93d4 JD |
464 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
465 | int nr = sensor_attr->index; | |
466 | ||
b74f3fdd | 467 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
468 | unsigned long val; |
469 | ||
179c4fdb | 470 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 471 | return -EINVAL; |
1da177e4 | 472 | |
9a61bf63 | 473 | mutex_lock(&data->update_lock); |
44c1bcd4 | 474 | data->in_min[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 475 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
1da177e4 | 476 | data->in_min[nr]); |
9a61bf63 | 477 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
478 | return count; |
479 | } | |
20ad93d4 JD |
480 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
481 | const char *buf, size_t count) | |
1da177e4 | 482 | { |
20ad93d4 JD |
483 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
484 | int nr = sensor_attr->index; | |
485 | ||
b74f3fdd | 486 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
487 | unsigned long val; |
488 | ||
179c4fdb | 489 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 490 | return -EINVAL; |
1da177e4 | 491 | |
9a61bf63 | 492 | mutex_lock(&data->update_lock); |
44c1bcd4 | 493 | data->in_max[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 494 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
1da177e4 | 495 | data->in_max[nr]); |
9a61bf63 | 496 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
497 | return count; |
498 | } | |
499 | ||
500 | #define show_in_offset(offset) \ | |
20ad93d4 JD |
501 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
502 | show_in, NULL, offset); | |
1da177e4 LT |
503 | |
504 | #define limit_in_offset(offset) \ | |
20ad93d4 JD |
505 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
506 | show_in_min, set_in_min, offset); \ | |
507 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
508 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
509 | |
510 | show_in_offset(0); | |
511 | limit_in_offset(0); | |
512 | show_in_offset(1); | |
513 | limit_in_offset(1); | |
514 | show_in_offset(2); | |
515 | limit_in_offset(2); | |
516 | show_in_offset(3); | |
517 | limit_in_offset(3); | |
518 | show_in_offset(4); | |
519 | limit_in_offset(4); | |
520 | show_in_offset(5); | |
521 | limit_in_offset(5); | |
522 | show_in_offset(6); | |
523 | limit_in_offset(6); | |
524 | show_in_offset(7); | |
525 | limit_in_offset(7); | |
526 | show_in_offset(8); | |
527 | ||
528 | /* 3 temperatures */ | |
20ad93d4 JD |
529 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
530 | char *buf) | |
1da177e4 | 531 | { |
20ad93d4 JD |
532 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
533 | int nr = sensor_attr->index; | |
534 | ||
1da177e4 LT |
535 | struct it87_data *data = it87_update_device(dev); |
536 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
537 | } | |
20ad93d4 JD |
538 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
539 | char *buf) | |
1da177e4 | 540 | { |
20ad93d4 JD |
541 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
542 | int nr = sensor_attr->index; | |
543 | ||
1da177e4 LT |
544 | struct it87_data *data = it87_update_device(dev); |
545 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
546 | } | |
20ad93d4 JD |
547 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
548 | char *buf) | |
1da177e4 | 549 | { |
20ad93d4 JD |
550 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
551 | int nr = sensor_attr->index; | |
552 | ||
1da177e4 LT |
553 | struct it87_data *data = it87_update_device(dev); |
554 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); | |
555 | } | |
20ad93d4 JD |
556 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
557 | const char *buf, size_t count) | |
1da177e4 | 558 | { |
20ad93d4 JD |
559 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
560 | int nr = sensor_attr->index; | |
561 | ||
b74f3fdd | 562 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
563 | long val; |
564 | ||
179c4fdb | 565 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 566 | return -EINVAL; |
1da177e4 | 567 | |
9a61bf63 | 568 | mutex_lock(&data->update_lock); |
1da177e4 | 569 | data->temp_high[nr] = TEMP_TO_REG(val); |
b74f3fdd | 570 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
9a61bf63 | 571 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
572 | return count; |
573 | } | |
20ad93d4 JD |
574 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
575 | const char *buf, size_t count) | |
1da177e4 | 576 | { |
20ad93d4 JD |
577 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
578 | int nr = sensor_attr->index; | |
579 | ||
b74f3fdd | 580 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
581 | long val; |
582 | ||
179c4fdb | 583 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 584 | return -EINVAL; |
1da177e4 | 585 | |
9a61bf63 | 586 | mutex_lock(&data->update_lock); |
1da177e4 | 587 | data->temp_low[nr] = TEMP_TO_REG(val); |
b74f3fdd | 588 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
9a61bf63 | 589 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
590 | return count; |
591 | } | |
592 | #define show_temp_offset(offset) \ | |
20ad93d4 JD |
593 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
594 | show_temp, NULL, offset - 1); \ | |
595 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
596 | show_temp_max, set_temp_max, offset - 1); \ | |
597 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
598 | show_temp_min, set_temp_min, offset - 1); | |
1da177e4 LT |
599 | |
600 | show_temp_offset(1); | |
601 | show_temp_offset(2); | |
602 | show_temp_offset(3); | |
603 | ||
20ad93d4 JD |
604 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
605 | char *buf) | |
1da177e4 | 606 | { |
20ad93d4 JD |
607 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
608 | int nr = sensor_attr->index; | |
609 | ||
1da177e4 | 610 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
611 | u8 reg = data->sensor; /* In case the value is updated while |
612 | we use it */ | |
613 | ||
1da177e4 LT |
614 | if (reg & (1 << nr)) |
615 | return sprintf(buf, "3\n"); /* thermal diode */ | |
616 | if (reg & (8 << nr)) | |
4ed10779 | 617 | return sprintf(buf, "4\n"); /* thermistor */ |
1da177e4 LT |
618 | return sprintf(buf, "0\n"); /* disabled */ |
619 | } | |
20ad93d4 JD |
620 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
621 | const char *buf, size_t count) | |
1da177e4 | 622 | { |
20ad93d4 JD |
623 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
624 | int nr = sensor_attr->index; | |
625 | ||
b74f3fdd | 626 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 627 | long val; |
8acf07c5 | 628 | u8 reg; |
f5f64501 | 629 | |
179c4fdb | 630 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 631 | return -EINVAL; |
1da177e4 | 632 | |
8acf07c5 JD |
633 | reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
634 | reg &= ~(1 << nr); | |
635 | reg &= ~(8 << nr); | |
4ed10779 JD |
636 | if (val == 2) { /* backwards compatibility */ |
637 | dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " | |
638 | "instead\n"); | |
639 | val = 4; | |
640 | } | |
641 | /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ | |
1da177e4 | 642 | if (val == 3) |
8acf07c5 | 643 | reg |= 1 << nr; |
4ed10779 | 644 | else if (val == 4) |
8acf07c5 JD |
645 | reg |= 8 << nr; |
646 | else if (val != 0) | |
1da177e4 | 647 | return -EINVAL; |
8acf07c5 JD |
648 | |
649 | mutex_lock(&data->update_lock); | |
650 | data->sensor = reg; | |
b74f3fdd | 651 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
2b3d1d87 | 652 | data->valid = 0; /* Force cache refresh */ |
9a61bf63 | 653 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
654 | return count; |
655 | } | |
656 | #define show_sensor_offset(offset) \ | |
20ad93d4 JD |
657 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
658 | show_sensor, set_sensor, offset - 1); | |
1da177e4 LT |
659 | |
660 | show_sensor_offset(1); | |
661 | show_sensor_offset(2); | |
662 | show_sensor_offset(3); | |
663 | ||
664 | /* 3 Fans */ | |
b99883dc JD |
665 | |
666 | static int pwm_mode(const struct it87_data *data, int nr) | |
667 | { | |
668 | int ctrl = data->fan_main_ctrl & (1 << nr); | |
669 | ||
670 | if (ctrl == 0) /* Full speed */ | |
671 | return 0; | |
672 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
673 | return 2; | |
674 | else /* Manual mode */ | |
675 | return 1; | |
676 | } | |
677 | ||
20ad93d4 JD |
678 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
679 | char *buf) | |
1da177e4 | 680 | { |
20ad93d4 JD |
681 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
682 | int nr = sensor_attr->index; | |
683 | ||
1da177e4 | 684 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 | 685 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
1da177e4 LT |
686 | DIV_FROM_REG(data->fan_div[nr]))); |
687 | } | |
20ad93d4 JD |
688 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
689 | char *buf) | |
1da177e4 | 690 | { |
20ad93d4 JD |
691 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
692 | int nr = sensor_attr->index; | |
693 | ||
1da177e4 | 694 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
695 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
696 | DIV_FROM_REG(data->fan_div[nr]))); | |
1da177e4 | 697 | } |
20ad93d4 JD |
698 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
699 | char *buf) | |
1da177e4 | 700 | { |
20ad93d4 JD |
701 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
702 | int nr = sensor_attr->index; | |
703 | ||
1da177e4 LT |
704 | struct it87_data *data = it87_update_device(dev); |
705 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
706 | } | |
5f2dc798 JD |
707 | static ssize_t show_pwm_enable(struct device *dev, |
708 | struct device_attribute *attr, char *buf) | |
1da177e4 | 709 | { |
20ad93d4 JD |
710 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
711 | int nr = sensor_attr->index; | |
712 | ||
1da177e4 | 713 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 714 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
1da177e4 | 715 | } |
20ad93d4 JD |
716 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
717 | char *buf) | |
1da177e4 | 718 | { |
20ad93d4 JD |
719 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
720 | int nr = sensor_attr->index; | |
721 | ||
1da177e4 | 722 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 JD |
723 | return sprintf(buf, "%d\n", |
724 | pwm_from_reg(data, data->pwm_duty[nr])); | |
1da177e4 | 725 | } |
f8d0c19a JD |
726 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
727 | char *buf) | |
728 | { | |
729 | struct it87_data *data = it87_update_device(dev); | |
730 | int index = (data->fan_ctl >> 4) & 0x07; | |
731 | ||
732 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
733 | } | |
20ad93d4 JD |
734 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
735 | const char *buf, size_t count) | |
1da177e4 | 736 | { |
20ad93d4 JD |
737 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
738 | int nr = sensor_attr->index; | |
739 | ||
b74f3fdd | 740 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 741 | long val; |
7f999aa7 | 742 | u8 reg; |
1da177e4 | 743 | |
179c4fdb | 744 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 JD |
745 | return -EINVAL; |
746 | ||
9a61bf63 | 747 | mutex_lock(&data->update_lock); |
b74f3fdd | 748 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
07eab46d | 749 | switch (nr) { |
5f2dc798 JD |
750 | case 0: |
751 | data->fan_div[nr] = reg & 0x07; | |
752 | break; | |
753 | case 1: | |
754 | data->fan_div[nr] = (reg >> 3) & 0x07; | |
755 | break; | |
756 | case 2: | |
757 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; | |
758 | break; | |
07eab46d JD |
759 | } |
760 | ||
1da177e4 | 761 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
c7f1f716 | 762 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
9a61bf63 | 763 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
764 | return count; |
765 | } | |
20ad93d4 JD |
766 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
767 | const char *buf, size_t count) | |
1da177e4 | 768 | { |
20ad93d4 JD |
769 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
770 | int nr = sensor_attr->index; | |
771 | ||
b74f3fdd | 772 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 773 | unsigned long val; |
8ab4ec3e | 774 | int min; |
1da177e4 LT |
775 | u8 old; |
776 | ||
179c4fdb | 777 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
778 | return -EINVAL; |
779 | ||
9a61bf63 | 780 | mutex_lock(&data->update_lock); |
b74f3fdd | 781 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 782 | |
8ab4ec3e JD |
783 | /* Save fan min limit */ |
784 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
1da177e4 LT |
785 | |
786 | switch (nr) { | |
787 | case 0: | |
788 | case 1: | |
789 | data->fan_div[nr] = DIV_TO_REG(val); | |
790 | break; | |
791 | case 2: | |
792 | if (val < 8) | |
793 | data->fan_div[nr] = 1; | |
794 | else | |
795 | data->fan_div[nr] = 3; | |
796 | } | |
797 | val = old & 0x80; | |
798 | val |= (data->fan_div[0] & 0x07); | |
799 | val |= (data->fan_div[1] & 0x07) << 3; | |
800 | if (data->fan_div[2] == 3) | |
801 | val |= 0x1 << 6; | |
b74f3fdd | 802 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 803 | |
8ab4ec3e JD |
804 | /* Restore fan min limit */ |
805 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
c7f1f716 | 806 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
8ab4ec3e | 807 | |
9a61bf63 | 808 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
809 | return count; |
810 | } | |
cccfc9c4 JD |
811 | |
812 | /* Returns 0 if OK, -EINVAL otherwise */ | |
813 | static int check_trip_points(struct device *dev, int nr) | |
814 | { | |
815 | const struct it87_data *data = dev_get_drvdata(dev); | |
816 | int i, err = 0; | |
817 | ||
818 | if (has_old_autopwm(data)) { | |
819 | for (i = 0; i < 3; i++) { | |
820 | if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) | |
821 | err = -EINVAL; | |
822 | } | |
823 | for (i = 0; i < 2; i++) { | |
824 | if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) | |
825 | err = -EINVAL; | |
826 | } | |
827 | } | |
828 | ||
829 | if (err) { | |
830 | dev_err(dev, "Inconsistent trip points, not switching to " | |
831 | "automatic mode\n"); | |
832 | dev_err(dev, "Adjust the trip points and try again\n"); | |
833 | } | |
834 | return err; | |
835 | } | |
836 | ||
20ad93d4 JD |
837 | static ssize_t set_pwm_enable(struct device *dev, |
838 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 839 | { |
20ad93d4 JD |
840 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
841 | int nr = sensor_attr->index; | |
842 | ||
b74f3fdd | 843 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 844 | long val; |
1da177e4 | 845 | |
179c4fdb | 846 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
b99883dc JD |
847 | return -EINVAL; |
848 | ||
cccfc9c4 JD |
849 | /* Check trip points before switching to automatic mode */ |
850 | if (val == 2) { | |
851 | if (check_trip_points(dev, nr) < 0) | |
852 | return -EINVAL; | |
853 | } | |
854 | ||
9a61bf63 | 855 | mutex_lock(&data->update_lock); |
1da177e4 LT |
856 | |
857 | if (val == 0) { | |
858 | int tmp; | |
859 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 860 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
861 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
862 | /* set on/off mode */ |
863 | data->fan_main_ctrl &= ~(1 << nr); | |
5f2dc798 JD |
864 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
865 | data->fan_main_ctrl); | |
b99883dc JD |
866 | } else { |
867 | if (val == 1) /* Manual mode */ | |
16b5dda2 | 868 | data->pwm_ctrl[nr] = has_newer_autopwm(data) ? |
6229cdb2 JD |
869 | data->pwm_temp_map[nr] : |
870 | data->pwm_duty[nr]; | |
b99883dc JD |
871 | else /* Automatic mode */ |
872 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
873 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1da177e4 LT |
874 | /* set SmartGuardian mode */ |
875 | data->fan_main_ctrl |= (1 << nr); | |
5f2dc798 JD |
876 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
877 | data->fan_main_ctrl); | |
1da177e4 LT |
878 | } |
879 | ||
9a61bf63 | 880 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
881 | return count; |
882 | } | |
20ad93d4 JD |
883 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
884 | const char *buf, size_t count) | |
1da177e4 | 885 | { |
20ad93d4 JD |
886 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
887 | int nr = sensor_attr->index; | |
888 | ||
b74f3fdd | 889 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 890 | long val; |
1da177e4 | 891 | |
179c4fdb | 892 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1da177e4 LT |
893 | return -EINVAL; |
894 | ||
9a61bf63 | 895 | mutex_lock(&data->update_lock); |
16b5dda2 | 896 | if (has_newer_autopwm(data)) { |
6229cdb2 JD |
897 | /* If we are in automatic mode, the PWM duty cycle register |
898 | * is read-only so we can't write the value */ | |
899 | if (data->pwm_ctrl[nr] & 0x80) { | |
900 | mutex_unlock(&data->update_lock); | |
901 | return -EBUSY; | |
902 | } | |
903 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
904 | it87_write_value(data, IT87_REG_PWM_DUTY(nr), | |
905 | data->pwm_duty[nr]); | |
906 | } else { | |
907 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
908 | /* If we are in manual mode, write the duty cycle immediately; | |
909 | * otherwise, just store it for later use. */ | |
910 | if (!(data->pwm_ctrl[nr] & 0x80)) { | |
911 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
912 | it87_write_value(data, IT87_REG_PWM(nr), | |
913 | data->pwm_ctrl[nr]); | |
914 | } | |
b99883dc | 915 | } |
9a61bf63 | 916 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
917 | return count; |
918 | } | |
f8d0c19a JD |
919 | static ssize_t set_pwm_freq(struct device *dev, |
920 | struct device_attribute *attr, const char *buf, size_t count) | |
921 | { | |
b74f3fdd | 922 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 923 | unsigned long val; |
f8d0c19a JD |
924 | int i; |
925 | ||
179c4fdb | 926 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 JD |
927 | return -EINVAL; |
928 | ||
f8d0c19a JD |
929 | /* Search for the nearest available frequency */ |
930 | for (i = 0; i < 7; i++) { | |
931 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
932 | break; | |
933 | } | |
934 | ||
935 | mutex_lock(&data->update_lock); | |
b74f3fdd | 936 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 937 | data->fan_ctl |= i << 4; |
b74f3fdd | 938 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
939 | mutex_unlock(&data->update_lock); |
940 | ||
941 | return count; | |
942 | } | |
94ac7ee6 JD |
943 | static ssize_t show_pwm_temp_map(struct device *dev, |
944 | struct device_attribute *attr, char *buf) | |
945 | { | |
946 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
947 | int nr = sensor_attr->index; | |
948 | ||
949 | struct it87_data *data = it87_update_device(dev); | |
950 | int map; | |
951 | ||
952 | if (data->pwm_temp_map[nr] < 3) | |
953 | map = 1 << data->pwm_temp_map[nr]; | |
954 | else | |
955 | map = 0; /* Should never happen */ | |
956 | return sprintf(buf, "%d\n", map); | |
957 | } | |
958 | static ssize_t set_pwm_temp_map(struct device *dev, | |
959 | struct device_attribute *attr, const char *buf, size_t count) | |
960 | { | |
961 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
962 | int nr = sensor_attr->index; | |
963 | ||
964 | struct it87_data *data = dev_get_drvdata(dev); | |
965 | long val; | |
966 | u8 reg; | |
967 | ||
4f3f51bc JD |
968 | /* This check can go away if we ever support automatic fan speed |
969 | control on newer chips. */ | |
970 | if (!has_old_autopwm(data)) { | |
971 | dev_notice(dev, "Mapping change disabled for safety reasons\n"); | |
972 | return -EINVAL; | |
973 | } | |
974 | ||
179c4fdb | 975 | if (kstrtol(buf, 10, &val) < 0) |
94ac7ee6 JD |
976 | return -EINVAL; |
977 | ||
978 | switch (val) { | |
979 | case (1 << 0): | |
980 | reg = 0x00; | |
981 | break; | |
982 | case (1 << 1): | |
983 | reg = 0x01; | |
984 | break; | |
985 | case (1 << 2): | |
986 | reg = 0x02; | |
987 | break; | |
988 | default: | |
989 | return -EINVAL; | |
990 | } | |
991 | ||
992 | mutex_lock(&data->update_lock); | |
993 | data->pwm_temp_map[nr] = reg; | |
994 | /* If we are in automatic mode, write the temp mapping immediately; | |
995 | * otherwise, just store it for later use. */ | |
996 | if (data->pwm_ctrl[nr] & 0x80) { | |
997 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
998 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
999 | } | |
1000 | mutex_unlock(&data->update_lock); | |
1001 | return count; | |
1002 | } | |
1da177e4 | 1003 | |
4f3f51bc JD |
1004 | static ssize_t show_auto_pwm(struct device *dev, |
1005 | struct device_attribute *attr, char *buf) | |
1006 | { | |
1007 | struct it87_data *data = it87_update_device(dev); | |
1008 | struct sensor_device_attribute_2 *sensor_attr = | |
1009 | to_sensor_dev_attr_2(attr); | |
1010 | int nr = sensor_attr->nr; | |
1011 | int point = sensor_attr->index; | |
1012 | ||
44c1bcd4 JD |
1013 | return sprintf(buf, "%d\n", |
1014 | pwm_from_reg(data, data->auto_pwm[nr][point])); | |
4f3f51bc JD |
1015 | } |
1016 | ||
1017 | static ssize_t set_auto_pwm(struct device *dev, | |
1018 | struct device_attribute *attr, const char *buf, size_t count) | |
1019 | { | |
1020 | struct it87_data *data = dev_get_drvdata(dev); | |
1021 | struct sensor_device_attribute_2 *sensor_attr = | |
1022 | to_sensor_dev_attr_2(attr); | |
1023 | int nr = sensor_attr->nr; | |
1024 | int point = sensor_attr->index; | |
1025 | long val; | |
1026 | ||
179c4fdb | 1027 | if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
4f3f51bc JD |
1028 | return -EINVAL; |
1029 | ||
1030 | mutex_lock(&data->update_lock); | |
44c1bcd4 | 1031 | data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
4f3f51bc JD |
1032 | it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
1033 | data->auto_pwm[nr][point]); | |
1034 | mutex_unlock(&data->update_lock); | |
1035 | return count; | |
1036 | } | |
1037 | ||
1038 | static ssize_t show_auto_temp(struct device *dev, | |
1039 | struct device_attribute *attr, char *buf) | |
1040 | { | |
1041 | struct it87_data *data = it87_update_device(dev); | |
1042 | struct sensor_device_attribute_2 *sensor_attr = | |
1043 | to_sensor_dev_attr_2(attr); | |
1044 | int nr = sensor_attr->nr; | |
1045 | int point = sensor_attr->index; | |
1046 | ||
1047 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); | |
1048 | } | |
1049 | ||
1050 | static ssize_t set_auto_temp(struct device *dev, | |
1051 | struct device_attribute *attr, const char *buf, size_t count) | |
1052 | { | |
1053 | struct it87_data *data = dev_get_drvdata(dev); | |
1054 | struct sensor_device_attribute_2 *sensor_attr = | |
1055 | to_sensor_dev_attr_2(attr); | |
1056 | int nr = sensor_attr->nr; | |
1057 | int point = sensor_attr->index; | |
1058 | long val; | |
1059 | ||
179c4fdb | 1060 | if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) |
4f3f51bc JD |
1061 | return -EINVAL; |
1062 | ||
1063 | mutex_lock(&data->update_lock); | |
1064 | data->auto_temp[nr][point] = TEMP_TO_REG(val); | |
1065 | it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), | |
1066 | data->auto_temp[nr][point]); | |
1067 | mutex_unlock(&data->update_lock); | |
1068 | return count; | |
1069 | } | |
1070 | ||
20ad93d4 JD |
1071 | #define show_fan_offset(offset) \ |
1072 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
1073 | show_fan, NULL, offset - 1); \ | |
1074 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1075 | show_fan_min, set_fan_min, offset - 1); \ | |
1076 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
1077 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
1078 | |
1079 | show_fan_offset(1); | |
1080 | show_fan_offset(2); | |
1081 | show_fan_offset(3); | |
1082 | ||
1083 | #define show_pwm_offset(offset) \ | |
20ad93d4 JD |
1084 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
1085 | show_pwm_enable, set_pwm_enable, offset - 1); \ | |
1086 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
f8d0c19a JD |
1087 | show_pwm, set_pwm, offset - 1); \ |
1088 | static DEVICE_ATTR(pwm##offset##_freq, \ | |
1089 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ | |
94ac7ee6 JD |
1090 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ |
1091 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ | |
4f3f51bc JD |
1092 | S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \ |
1093 | offset - 1); \ | |
1094 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \ | |
1095 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1096 | offset - 1, 0); \ | |
1097 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \ | |
1098 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1099 | offset - 1, 1); \ | |
1100 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \ | |
1101 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1102 | offset - 1, 2); \ | |
1103 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \ | |
1104 | S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \ | |
1105 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \ | |
1106 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1107 | offset - 1, 1); \ | |
1108 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \ | |
1109 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1110 | offset - 1, 0); \ | |
1111 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \ | |
1112 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1113 | offset - 1, 2); \ | |
1114 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \ | |
1115 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1116 | offset - 1, 3); \ | |
1117 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \ | |
1118 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1119 | offset - 1, 4); | |
1da177e4 LT |
1120 | |
1121 | show_pwm_offset(1); | |
1122 | show_pwm_offset(2); | |
1123 | show_pwm_offset(3); | |
1124 | ||
17d648bf JD |
1125 | /* A different set of callbacks for 16-bit fans */ |
1126 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, | |
1127 | char *buf) | |
1128 | { | |
1129 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1130 | int nr = sensor_attr->index; | |
1131 | struct it87_data *data = it87_update_device(dev); | |
1132 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); | |
1133 | } | |
1134 | ||
1135 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, | |
1136 | char *buf) | |
1137 | { | |
1138 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1139 | int nr = sensor_attr->index; | |
1140 | struct it87_data *data = it87_update_device(dev); | |
1141 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); | |
1142 | } | |
1143 | ||
1144 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, | |
1145 | const char *buf, size_t count) | |
1146 | { | |
1147 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1148 | int nr = sensor_attr->index; | |
b74f3fdd | 1149 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1150 | long val; |
1151 | ||
179c4fdb | 1152 | if (kstrtol(buf, 10, &val) < 0) |
f5f64501 | 1153 | return -EINVAL; |
17d648bf JD |
1154 | |
1155 | mutex_lock(&data->update_lock); | |
1156 | data->fan_min[nr] = FAN16_TO_REG(val); | |
c7f1f716 | 1157 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
17d648bf | 1158 | data->fan_min[nr] & 0xff); |
c7f1f716 | 1159 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
17d648bf JD |
1160 | data->fan_min[nr] >> 8); |
1161 | mutex_unlock(&data->update_lock); | |
1162 | return count; | |
1163 | } | |
1164 | ||
1165 | /* We want to use the same sysfs file names as 8-bit fans, but we need | |
1166 | different variable names, so we have to use SENSOR_ATTR instead of | |
1167 | SENSOR_DEVICE_ATTR. */ | |
1168 | #define show_fan16_offset(offset) \ | |
1169 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ | |
1170 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ | |
1171 | show_fan16, NULL, offset - 1); \ | |
1172 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ | |
1173 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1174 | show_fan16_min, set_fan16_min, offset - 1) | |
1175 | ||
1176 | show_fan16_offset(1); | |
1177 | show_fan16_offset(2); | |
1178 | show_fan16_offset(3); | |
c7f1f716 JD |
1179 | show_fan16_offset(4); |
1180 | show_fan16_offset(5); | |
17d648bf | 1181 | |
1da177e4 | 1182 | /* Alarms */ |
5f2dc798 JD |
1183 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
1184 | char *buf) | |
1da177e4 LT |
1185 | { |
1186 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 1187 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 1188 | } |
1d66c64c | 1189 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 1190 | |
0124dd78 JD |
1191 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
1192 | char *buf) | |
1193 | { | |
1194 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1195 | struct it87_data *data = it87_update_device(dev); | |
1196 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
1197 | } | |
3d30f9e6 JD |
1198 | |
1199 | static ssize_t clear_intrusion(struct device *dev, struct device_attribute | |
1200 | *attr, const char *buf, size_t count) | |
1201 | { | |
1202 | struct it87_data *data = dev_get_drvdata(dev); | |
1203 | long val; | |
1204 | int config; | |
1205 | ||
179c4fdb | 1206 | if (kstrtol(buf, 10, &val) < 0 || val != 0) |
3d30f9e6 JD |
1207 | return -EINVAL; |
1208 | ||
1209 | mutex_lock(&data->update_lock); | |
1210 | config = it87_read_value(data, IT87_REG_CONFIG); | |
1211 | if (config < 0) { | |
1212 | count = config; | |
1213 | } else { | |
1214 | config |= 1 << 5; | |
1215 | it87_write_value(data, IT87_REG_CONFIG, config); | |
1216 | /* Invalidate cache to force re-read */ | |
1217 | data->valid = 0; | |
1218 | } | |
1219 | mutex_unlock(&data->update_lock); | |
1220 | ||
1221 | return count; | |
1222 | } | |
1223 | ||
0124dd78 JD |
1224 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
1225 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
1226 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
1227 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
1228 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
1229 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
1230 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1231 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
1232 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
1233 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
1234 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
1235 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
1236 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
1237 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
1238 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
1239 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
3d30f9e6 JD |
1240 | static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, |
1241 | show_alarm, clear_intrusion, 4); | |
0124dd78 | 1242 | |
d9b327c3 JD |
1243 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
1244 | char *buf) | |
1245 | { | |
1246 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1247 | struct it87_data *data = it87_update_device(dev); | |
1248 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); | |
1249 | } | |
1250 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
1251 | const char *buf, size_t count) | |
1252 | { | |
1253 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1254 | struct it87_data *data = dev_get_drvdata(dev); | |
1255 | long val; | |
1256 | ||
179c4fdb | 1257 | if (kstrtol(buf, 10, &val) < 0 |
d9b327c3 JD |
1258 | || (val != 0 && val != 1)) |
1259 | return -EINVAL; | |
1260 | ||
1261 | mutex_lock(&data->update_lock); | |
1262 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
1263 | if (val) | |
1264 | data->beeps |= (1 << bitnr); | |
1265 | else | |
1266 | data->beeps &= ~(1 << bitnr); | |
1267 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); | |
1268 | mutex_unlock(&data->update_lock); | |
1269 | return count; | |
1270 | } | |
1271 | ||
1272 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
1273 | show_beep, set_beep, 1); | |
1274 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); | |
1275 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); | |
1276 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); | |
1277 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); | |
1278 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); | |
1279 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); | |
1280 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); | |
1281 | /* fanX_beep writability is set later */ | |
1282 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); | |
1283 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); | |
1284 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); | |
1285 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); | |
1286 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); | |
1287 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
1288 | show_beep, set_beep, 2); | |
1289 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); | |
1290 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); | |
1291 | ||
5f2dc798 JD |
1292 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1293 | char *buf) | |
1da177e4 | 1294 | { |
90d6619a | 1295 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 1296 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 | 1297 | } |
5f2dc798 JD |
1298 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1299 | const char *buf, size_t count) | |
1da177e4 | 1300 | { |
b74f3fdd | 1301 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1302 | unsigned long val; |
1303 | ||
179c4fdb | 1304 | if (kstrtoul(buf, 10, &val) < 0) |
f5f64501 | 1305 | return -EINVAL; |
1da177e4 | 1306 | |
1da177e4 LT |
1307 | data->vrm = val; |
1308 | ||
1309 | return count; | |
1310 | } | |
1311 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 | 1312 | |
5f2dc798 JD |
1313 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1314 | char *buf) | |
1da177e4 LT |
1315 | { |
1316 | struct it87_data *data = it87_update_device(dev); | |
1317 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
1318 | } | |
1319 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 1320 | |
738e5e05 JD |
1321 | static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
1322 | char *buf) | |
1323 | { | |
1324 | static const char *labels[] = { | |
1325 | "+5V", | |
1326 | "5VSB", | |
1327 | "Vbat", | |
1328 | }; | |
44c1bcd4 JD |
1329 | static const char *labels_it8721[] = { |
1330 | "+3.3V", | |
1331 | "3VSB", | |
1332 | "Vbat", | |
1333 | }; | |
1334 | struct it87_data *data = dev_get_drvdata(dev); | |
738e5e05 JD |
1335 | int nr = to_sensor_dev_attr(attr)->index; |
1336 | ||
16b5dda2 JD |
1337 | return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr] |
1338 | : labels[nr]); | |
738e5e05 JD |
1339 | } |
1340 | static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); | |
1341 | static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); | |
1342 | static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); | |
1343 | ||
b74f3fdd | 1344 | static ssize_t show_name(struct device *dev, struct device_attribute |
1345 | *devattr, char *buf) | |
1346 | { | |
1347 | struct it87_data *data = dev_get_drvdata(dev); | |
1348 | return sprintf(buf, "%s\n", data->name); | |
1349 | } | |
1350 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1351 | ||
87808be4 JD |
1352 | static struct attribute *it87_attributes[] = { |
1353 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1354 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1355 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1356 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1357 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1358 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1359 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1360 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1361 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
1362 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1363 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1364 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1365 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1366 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1367 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1368 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1369 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1370 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1371 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1372 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1373 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
1374 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
1375 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1376 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1377 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 JD |
1378 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1379 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1380 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1381 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
1382 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
1383 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
1384 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1385 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
87808be4 JD |
1386 | |
1387 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1388 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1389 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1390 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1391 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1392 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1393 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1394 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1395 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1396 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
1397 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
1398 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 JD |
1399 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1400 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1401 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
87808be4 JD |
1402 | |
1403 | &dev_attr_alarms.attr, | |
3d30f9e6 | 1404 | &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
b74f3fdd | 1405 | &dev_attr_name.attr, |
87808be4 JD |
1406 | NULL |
1407 | }; | |
1408 | ||
1409 | static const struct attribute_group it87_group = { | |
1410 | .attrs = it87_attributes, | |
1411 | }; | |
1412 | ||
d9b327c3 JD |
1413 | static struct attribute *it87_attributes_beep[] = { |
1414 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
1415 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
1416 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
1417 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
1418 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
1419 | &sensor_dev_attr_in5_beep.dev_attr.attr, | |
1420 | &sensor_dev_attr_in6_beep.dev_attr.attr, | |
1421 | &sensor_dev_attr_in7_beep.dev_attr.attr, | |
1422 | ||
1423 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
1424 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
1425 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
1426 | NULL | |
1427 | }; | |
1428 | ||
1429 | static const struct attribute_group it87_group_beep = { | |
1430 | .attrs = it87_attributes_beep, | |
1431 | }; | |
1432 | ||
723a0aa0 | 1433 | static struct attribute *it87_attributes_fan16[5][3+1] = { { |
87808be4 JD |
1434 | &sensor_dev_attr_fan1_input16.dev_attr.attr, |
1435 | &sensor_dev_attr_fan1_min16.dev_attr.attr, | |
723a0aa0 JD |
1436 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1437 | NULL | |
1438 | }, { | |
87808be4 JD |
1439 | &sensor_dev_attr_fan2_input16.dev_attr.attr, |
1440 | &sensor_dev_attr_fan2_min16.dev_attr.attr, | |
723a0aa0 JD |
1441 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1442 | NULL | |
1443 | }, { | |
87808be4 JD |
1444 | &sensor_dev_attr_fan3_input16.dev_attr.attr, |
1445 | &sensor_dev_attr_fan3_min16.dev_attr.attr, | |
723a0aa0 JD |
1446 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1447 | NULL | |
1448 | }, { | |
c7f1f716 JD |
1449 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
1450 | &sensor_dev_attr_fan4_min16.dev_attr.attr, | |
723a0aa0 JD |
1451 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1452 | NULL | |
1453 | }, { | |
c7f1f716 JD |
1454 | &sensor_dev_attr_fan5_input16.dev_attr.attr, |
1455 | &sensor_dev_attr_fan5_min16.dev_attr.attr, | |
723a0aa0 JD |
1456 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1457 | NULL | |
1458 | } }; | |
1459 | ||
1460 | static const struct attribute_group it87_group_fan16[5] = { | |
1461 | { .attrs = it87_attributes_fan16[0] }, | |
1462 | { .attrs = it87_attributes_fan16[1] }, | |
1463 | { .attrs = it87_attributes_fan16[2] }, | |
1464 | { .attrs = it87_attributes_fan16[3] }, | |
1465 | { .attrs = it87_attributes_fan16[4] }, | |
1466 | }; | |
87808be4 | 1467 | |
723a0aa0 | 1468 | static struct attribute *it87_attributes_fan[3][4+1] = { { |
87808be4 JD |
1469 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1470 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1471 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
723a0aa0 JD |
1472 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1473 | NULL | |
1474 | }, { | |
87808be4 JD |
1475 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1476 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1477 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
723a0aa0 JD |
1478 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1479 | NULL | |
1480 | }, { | |
87808be4 JD |
1481 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1482 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1483 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
0124dd78 | 1484 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
723a0aa0 JD |
1485 | NULL |
1486 | } }; | |
1487 | ||
1488 | static const struct attribute_group it87_group_fan[3] = { | |
1489 | { .attrs = it87_attributes_fan[0] }, | |
1490 | { .attrs = it87_attributes_fan[1] }, | |
1491 | { .attrs = it87_attributes_fan[2] }, | |
1492 | }; | |
1493 | ||
1494 | static const struct attribute_group * | |
1495 | it87_get_fan_group(const struct it87_data *data) | |
1496 | { | |
1497 | return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; | |
1498 | } | |
0124dd78 | 1499 | |
723a0aa0 | 1500 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
87808be4 | 1501 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
87808be4 | 1502 | &sensor_dev_attr_pwm1.dev_attr.attr, |
d5b0b5d6 | 1503 | &dev_attr_pwm1_freq.attr, |
94ac7ee6 | 1504 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1505 | NULL |
1506 | }, { | |
1507 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1508 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1509 | &dev_attr_pwm2_freq.attr, | |
94ac7ee6 | 1510 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1511 | NULL |
1512 | }, { | |
1513 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1514 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1515 | &dev_attr_pwm3_freq.attr, | |
94ac7ee6 | 1516 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1517 | NULL |
1518 | } }; | |
87808be4 | 1519 | |
723a0aa0 JD |
1520 | static const struct attribute_group it87_group_pwm[3] = { |
1521 | { .attrs = it87_attributes_pwm[0] }, | |
1522 | { .attrs = it87_attributes_pwm[1] }, | |
1523 | { .attrs = it87_attributes_pwm[2] }, | |
1524 | }; | |
1525 | ||
4f3f51bc JD |
1526 | static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
1527 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1528 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1529 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
1530 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
1531 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1532 | &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, | |
1533 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1534 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
1535 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
1536 | NULL | |
1537 | }, { | |
1538 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1539 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1540 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
1541 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
1542 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1543 | &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, | |
1544 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1545 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
1546 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
1547 | NULL | |
1548 | }, { | |
1549 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1550 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1551 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
1552 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
1553 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1554 | &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, | |
1555 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1556 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
1557 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
1558 | NULL | |
1559 | } }; | |
1560 | ||
1561 | static const struct attribute_group it87_group_autopwm[3] = { | |
1562 | { .attrs = it87_attributes_autopwm[0] }, | |
1563 | { .attrs = it87_attributes_autopwm[1] }, | |
1564 | { .attrs = it87_attributes_autopwm[2] }, | |
1565 | }; | |
1566 | ||
d9b327c3 JD |
1567 | static struct attribute *it87_attributes_fan_beep[] = { |
1568 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
1569 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
1570 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
1571 | &sensor_dev_attr_fan4_beep.dev_attr.attr, | |
1572 | &sensor_dev_attr_fan5_beep.dev_attr.attr, | |
1573 | }; | |
1574 | ||
6a8d7acf | 1575 | static struct attribute *it87_attributes_vid[] = { |
87808be4 JD |
1576 | &dev_attr_vrm.attr, |
1577 | &dev_attr_cpu0_vid.attr, | |
1578 | NULL | |
1579 | }; | |
1580 | ||
6a8d7acf JD |
1581 | static const struct attribute_group it87_group_vid = { |
1582 | .attrs = it87_attributes_vid, | |
87808be4 | 1583 | }; |
1da177e4 | 1584 | |
738e5e05 JD |
1585 | static struct attribute *it87_attributes_label[] = { |
1586 | &sensor_dev_attr_in3_label.dev_attr.attr, | |
1587 | &sensor_dev_attr_in7_label.dev_attr.attr, | |
1588 | &sensor_dev_attr_in8_label.dev_attr.attr, | |
1589 | NULL | |
1590 | }; | |
1591 | ||
1592 | static const struct attribute_group it87_group_label = { | |
fa8b6975 | 1593 | .attrs = it87_attributes_label, |
738e5e05 JD |
1594 | }; |
1595 | ||
2d8672c5 | 1596 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 1597 | static int __init it87_find(unsigned short *address, |
1598 | struct it87_sio_data *sio_data) | |
1da177e4 | 1599 | { |
5b0380c9 | 1600 | int err; |
b74f3fdd | 1601 | u16 chip_type; |
98dd22c3 | 1602 | const char *board_vendor, *board_name; |
1da177e4 | 1603 | |
5b0380c9 NG |
1604 | err = superio_enter(); |
1605 | if (err) | |
1606 | return err; | |
1607 | ||
1608 | err = -ENODEV; | |
67b671bc | 1609 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 1610 | |
1611 | switch (chip_type) { | |
1612 | case IT8705F_DEVID: | |
1613 | sio_data->type = it87; | |
1614 | break; | |
1615 | case IT8712F_DEVID: | |
1616 | sio_data->type = it8712; | |
1617 | break; | |
1618 | case IT8716F_DEVID: | |
1619 | case IT8726F_DEVID: | |
1620 | sio_data->type = it8716; | |
1621 | break; | |
1622 | case IT8718F_DEVID: | |
1623 | sio_data->type = it8718; | |
1624 | break; | |
b4da93e4 JMS |
1625 | case IT8720F_DEVID: |
1626 | sio_data->type = it8720; | |
1627 | break; | |
44c1bcd4 JD |
1628 | case IT8721F_DEVID: |
1629 | sio_data->type = it8721; | |
1630 | break; | |
16b5dda2 JD |
1631 | case IT8728F_DEVID: |
1632 | sio_data->type = it8728; | |
1633 | break; | |
b74f3fdd | 1634 | case 0xffff: /* No device at all */ |
1635 | goto exit; | |
1636 | default: | |
a8ca1037 | 1637 | pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
b74f3fdd | 1638 | goto exit; |
1639 | } | |
1da177e4 | 1640 | |
87673dd7 | 1641 | superio_select(PME); |
1da177e4 | 1642 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
a8ca1037 | 1643 | pr_info("Device not activated, skipping\n"); |
1da177e4 LT |
1644 | goto exit; |
1645 | } | |
1646 | ||
1647 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1648 | if (*address == 0) { | |
a8ca1037 | 1649 | pr_info("Base address not set, skipping\n"); |
1da177e4 LT |
1650 | goto exit; |
1651 | } | |
1652 | ||
1653 | err = 0; | |
0475169c | 1654 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
a8ca1037 | 1655 | pr_info("Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1656 | chip_type, *address, sio_data->revision); |
1da177e4 | 1657 | |
738e5e05 JD |
1658 | /* in8 (Vbat) is always internal */ |
1659 | sio_data->internal = (1 << 2); | |
1660 | ||
87673dd7 | 1661 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
895ff267 JD |
1662 | if (sio_data->type == it87) { |
1663 | /* The IT8705F doesn't have VID pins at all */ | |
1664 | sio_data->skip_vid = 1; | |
d9b327c3 JD |
1665 | |
1666 | /* The IT8705F has a different LD number for GPIO */ | |
1667 | superio_select(5); | |
1668 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
895ff267 | 1669 | } else { |
87673dd7 JD |
1670 | int reg; |
1671 | ||
1672 | superio_select(GPIO); | |
44c1bcd4 | 1673 | |
895ff267 | 1674 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
16b5dda2 JD |
1675 | if (sio_data->type == it8721 || sio_data->type == it8728) { |
1676 | /* | |
1677 | * The IT8721F/IT8758E doesn't have VID pins at all, | |
1678 | * not sure about the IT8728F. | |
1679 | */ | |
895ff267 | 1680 | sio_data->skip_vid = 1; |
44c1bcd4 JD |
1681 | } else { |
1682 | /* We need at least 4 VID pins */ | |
1683 | if (reg & 0x0f) { | |
a8ca1037 | 1684 | pr_info("VID is disabled (pins used for GPIO)\n"); |
44c1bcd4 JD |
1685 | sio_data->skip_vid = 1; |
1686 | } | |
895ff267 JD |
1687 | } |
1688 | ||
591ec650 JD |
1689 | /* Check if fan3 is there or not */ |
1690 | if (reg & (1 << 6)) | |
1691 | sio_data->skip_pwm |= (1 << 2); | |
1692 | if (reg & (1 << 7)) | |
1693 | sio_data->skip_fan |= (1 << 2); | |
1694 | ||
1695 | /* Check if fan2 is there or not */ | |
1696 | reg = superio_inb(IT87_SIO_GPIO5_REG); | |
1697 | if (reg & (1 << 1)) | |
1698 | sio_data->skip_pwm |= (1 << 1); | |
1699 | if (reg & (1 << 2)) | |
1700 | sio_data->skip_fan |= (1 << 1); | |
1701 | ||
895ff267 JD |
1702 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1703 | && !(sio_data->skip_vid)) | |
b74f3fdd | 1704 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1705 | |
1706 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
436cad2a JD |
1707 | /* |
1708 | * The IT8720F has no VIN7 pin, so VCCH should always be | |
1709 | * routed internally to VIN7 with an internal divider. | |
1710 | * Curiously, there still is a configuration bit to control | |
1711 | * this, which means it can be set incorrectly. And even | |
1712 | * more curiously, many boards out there are improperly | |
1713 | * configured, even though the IT8720F datasheet claims | |
1714 | * that the internal routing of VCCH to VIN7 is the default | |
1715 | * setting. So we force the internal routing in this case. | |
1716 | */ | |
1717 | if (sio_data->type == it8720 && !(reg & (1 << 1))) { | |
1718 | reg |= (1 << 1); | |
1719 | superio_outb(IT87_SIO_PINX2_REG, reg); | |
a8ca1037 | 1720 | pr_notice("Routing internal VCCH to in7\n"); |
436cad2a | 1721 | } |
87673dd7 | 1722 | if (reg & (1 << 0)) |
738e5e05 | 1723 | sio_data->internal |= (1 << 0); |
16b5dda2 JD |
1724 | if ((reg & (1 << 1)) || sio_data->type == it8721 || |
1725 | sio_data->type == it8728) | |
738e5e05 | 1726 | sio_data->internal |= (1 << 1); |
d9b327c3 JD |
1727 | |
1728 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
87673dd7 | 1729 | } |
d9b327c3 | 1730 | if (sio_data->beep_pin) |
a8ca1037 | 1731 | pr_info("Beeping is supported\n"); |
87673dd7 | 1732 | |
98dd22c3 JD |
1733 | /* Disable specific features based on DMI strings */ |
1734 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1735 | board_name = dmi_get_system_info(DMI_BOARD_NAME); | |
1736 | if (board_vendor && board_name) { | |
1737 | if (strcmp(board_vendor, "nVIDIA") == 0 | |
1738 | && strcmp(board_name, "FN68PT") == 0) { | |
1739 | /* On the Shuttle SN68PT, FAN_CTL2 is apparently not | |
1740 | connected to a fan, but to something else. One user | |
1741 | has reported instant system power-off when changing | |
1742 | the PWM2 duty cycle, so we disable it. | |
1743 | I use the board name string as the trigger in case | |
1744 | the same board is ever used in other systems. */ | |
a8ca1037 | 1745 | pr_info("Disabling pwm2 due to hardware constraints\n"); |
98dd22c3 JD |
1746 | sio_data->skip_pwm = (1 << 1); |
1747 | } | |
1748 | } | |
1749 | ||
1da177e4 LT |
1750 | exit: |
1751 | superio_exit(); | |
1752 | return err; | |
1753 | } | |
1754 | ||
723a0aa0 JD |
1755 | static void it87_remove_files(struct device *dev) |
1756 | { | |
1757 | struct it87_data *data = platform_get_drvdata(pdev); | |
1758 | struct it87_sio_data *sio_data = dev->platform_data; | |
1759 | const struct attribute_group *fan_group = it87_get_fan_group(data); | |
1760 | int i; | |
1761 | ||
1762 | sysfs_remove_group(&dev->kobj, &it87_group); | |
d9b327c3 JD |
1763 | if (sio_data->beep_pin) |
1764 | sysfs_remove_group(&dev->kobj, &it87_group_beep); | |
723a0aa0 JD |
1765 | for (i = 0; i < 5; i++) { |
1766 | if (!(data->has_fan & (1 << i))) | |
1767 | continue; | |
1768 | sysfs_remove_group(&dev->kobj, &fan_group[i]); | |
d9b327c3 JD |
1769 | if (sio_data->beep_pin) |
1770 | sysfs_remove_file(&dev->kobj, | |
1771 | it87_attributes_fan_beep[i]); | |
723a0aa0 JD |
1772 | } |
1773 | for (i = 0; i < 3; i++) { | |
1774 | if (sio_data->skip_pwm & (1 << 0)) | |
1775 | continue; | |
1776 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); | |
4f3f51bc JD |
1777 | if (has_old_autopwm(data)) |
1778 | sysfs_remove_group(&dev->kobj, | |
1779 | &it87_group_autopwm[i]); | |
723a0aa0 | 1780 | } |
6a8d7acf JD |
1781 | if (!sio_data->skip_vid) |
1782 | sysfs_remove_group(&dev->kobj, &it87_group_vid); | |
738e5e05 | 1783 | sysfs_remove_group(&dev->kobj, &it87_group_label); |
723a0aa0 JD |
1784 | } |
1785 | ||
b74f3fdd | 1786 | static int __devinit it87_probe(struct platform_device *pdev) |
1da177e4 | 1787 | { |
1da177e4 | 1788 | struct it87_data *data; |
b74f3fdd | 1789 | struct resource *res; |
1790 | struct device *dev = &pdev->dev; | |
1791 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 JD |
1792 | const struct attribute_group *fan_group; |
1793 | int err = 0, i; | |
1da177e4 | 1794 | int enable_pwm_interface; |
d9b327c3 | 1795 | int fan_beep_need_rw; |
b74f3fdd | 1796 | static const char *names[] = { |
1797 | "it87", | |
1798 | "it8712", | |
1799 | "it8716", | |
1800 | "it8718", | |
b4da93e4 | 1801 | "it8720", |
44c1bcd4 | 1802 | "it8721", |
16b5dda2 | 1803 | "it8728", |
b74f3fdd | 1804 | }; |
1805 | ||
1806 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
87b4b663 | 1807 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
b74f3fdd | 1808 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1809 | (unsigned long)res->start, | |
87b4b663 | 1810 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
8e9afcbb JD |
1811 | err = -EBUSY; |
1812 | goto ERROR0; | |
1813 | } | |
1da177e4 | 1814 | |
5f2dc798 JD |
1815 | data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); |
1816 | if (!data) { | |
1da177e4 LT |
1817 | err = -ENOMEM; |
1818 | goto ERROR1; | |
1819 | } | |
1da177e4 | 1820 | |
b74f3fdd | 1821 | data->addr = res->start; |
1822 | data->type = sio_data->type; | |
0475169c | 1823 | data->revision = sio_data->revision; |
b74f3fdd | 1824 | data->name = names[sio_data->type]; |
1da177e4 LT |
1825 | |
1826 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 1827 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
1828 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { | |
8e9afcbb JD |
1829 | err = -ENODEV; |
1830 | goto ERROR2; | |
1da177e4 LT |
1831 | } |
1832 | ||
b74f3fdd | 1833 | platform_set_drvdata(pdev, data); |
1da177e4 | 1834 | |
9a61bf63 | 1835 | mutex_init(&data->update_lock); |
1da177e4 | 1836 | |
1da177e4 | 1837 | /* Check PWM configuration */ |
b74f3fdd | 1838 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 | 1839 | |
44c1bcd4 | 1840 | /* Starting with IT8721F, we handle scaling of internal voltages */ |
16b5dda2 | 1841 | if (has_12mv_adc(data)) { |
44c1bcd4 JD |
1842 | if (sio_data->internal & (1 << 0)) |
1843 | data->in_scaled |= (1 << 3); /* in3 is AVCC */ | |
1844 | if (sio_data->internal & (1 << 1)) | |
1845 | data->in_scaled |= (1 << 7); /* in7 is VSB */ | |
1846 | if (sio_data->internal & (1 << 2)) | |
1847 | data->in_scaled |= (1 << 8); /* in8 is Vbat */ | |
1848 | } | |
1849 | ||
1da177e4 | 1850 | /* Initialize the IT87 chip */ |
b74f3fdd | 1851 | it87_init_device(pdev); |
1da177e4 LT |
1852 | |
1853 | /* Register sysfs hooks */ | |
5f2dc798 JD |
1854 | err = sysfs_create_group(&dev->kobj, &it87_group); |
1855 | if (err) | |
b74f3fdd | 1856 | goto ERROR2; |
17d648bf | 1857 | |
d9b327c3 JD |
1858 | if (sio_data->beep_pin) { |
1859 | err = sysfs_create_group(&dev->kobj, &it87_group_beep); | |
1860 | if (err) | |
1861 | goto ERROR4; | |
1862 | } | |
1863 | ||
9060f8bd | 1864 | /* Do not create fan files for disabled fans */ |
723a0aa0 | 1865 | fan_group = it87_get_fan_group(data); |
d9b327c3 | 1866 | fan_beep_need_rw = 1; |
723a0aa0 JD |
1867 | for (i = 0; i < 5; i++) { |
1868 | if (!(data->has_fan & (1 << i))) | |
1869 | continue; | |
1870 | err = sysfs_create_group(&dev->kobj, &fan_group[i]); | |
1871 | if (err) | |
1872 | goto ERROR4; | |
d9b327c3 JD |
1873 | |
1874 | if (sio_data->beep_pin) { | |
1875 | err = sysfs_create_file(&dev->kobj, | |
1876 | it87_attributes_fan_beep[i]); | |
1877 | if (err) | |
1878 | goto ERROR4; | |
1879 | if (!fan_beep_need_rw) | |
1880 | continue; | |
1881 | ||
1882 | /* As we have a single beep enable bit for all fans, | |
1883 | * only the first enabled fan has a writable attribute | |
1884 | * for it. */ | |
1885 | if (sysfs_chmod_file(&dev->kobj, | |
1886 | it87_attributes_fan_beep[i], | |
1887 | S_IRUGO | S_IWUSR)) | |
1888 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", | |
1889 | i + 1); | |
1890 | fan_beep_need_rw = 0; | |
1891 | } | |
17d648bf JD |
1892 | } |
1893 | ||
1da177e4 | 1894 | if (enable_pwm_interface) { |
723a0aa0 JD |
1895 | for (i = 0; i < 3; i++) { |
1896 | if (sio_data->skip_pwm & (1 << i)) | |
1897 | continue; | |
1898 | err = sysfs_create_group(&dev->kobj, | |
1899 | &it87_group_pwm[i]); | |
1900 | if (err) | |
98dd22c3 | 1901 | goto ERROR4; |
4f3f51bc JD |
1902 | |
1903 | if (!has_old_autopwm(data)) | |
1904 | continue; | |
1905 | err = sysfs_create_group(&dev->kobj, | |
1906 | &it87_group_autopwm[i]); | |
1907 | if (err) | |
1908 | goto ERROR4; | |
98dd22c3 | 1909 | } |
1da177e4 LT |
1910 | } |
1911 | ||
895ff267 | 1912 | if (!sio_data->skip_vid) { |
303760b4 | 1913 | data->vrm = vid_which_vrm(); |
87673dd7 | 1914 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 1915 | data->vid = sio_data->vid_value; |
6a8d7acf JD |
1916 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
1917 | if (err) | |
87808be4 JD |
1918 | goto ERROR4; |
1919 | } | |
1920 | ||
738e5e05 JD |
1921 | /* Export labels for internal sensors */ |
1922 | for (i = 0; i < 3; i++) { | |
1923 | if (!(sio_data->internal & (1 << i))) | |
1924 | continue; | |
1925 | err = sysfs_create_file(&dev->kobj, | |
1926 | it87_attributes_label[i]); | |
1927 | if (err) | |
1928 | goto ERROR4; | |
1929 | } | |
1930 | ||
1beeffe4 TJ |
1931 | data->hwmon_dev = hwmon_device_register(dev); |
1932 | if (IS_ERR(data->hwmon_dev)) { | |
1933 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 | 1934 | goto ERROR4; |
1da177e4 LT |
1935 | } |
1936 | ||
1937 | return 0; | |
1938 | ||
87808be4 | 1939 | ERROR4: |
723a0aa0 | 1940 | it87_remove_files(dev); |
1da177e4 | 1941 | ERROR2: |
b74f3fdd | 1942 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
1943 | kfree(data); |
1944 | ERROR1: | |
87b4b663 | 1945 | release_region(res->start, IT87_EC_EXTENT); |
1da177e4 LT |
1946 | ERROR0: |
1947 | return err; | |
1948 | } | |
1949 | ||
b74f3fdd | 1950 | static int __devexit it87_remove(struct platform_device *pdev) |
1da177e4 | 1951 | { |
b74f3fdd | 1952 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 1953 | |
1beeffe4 | 1954 | hwmon_device_unregister(data->hwmon_dev); |
723a0aa0 | 1955 | it87_remove_files(&pdev->dev); |
943b0830 | 1956 | |
87b4b663 | 1957 | release_region(data->addr, IT87_EC_EXTENT); |
b74f3fdd | 1958 | platform_set_drvdata(pdev, NULL); |
943b0830 | 1959 | kfree(data); |
1da177e4 LT |
1960 | |
1961 | return 0; | |
1962 | } | |
1963 | ||
7f999aa7 | 1964 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1965 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1966 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1967 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 1968 | { |
b74f3fdd | 1969 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1970 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1971 | } |
1972 | ||
7f999aa7 | 1973 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1974 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1975 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1976 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 1977 | { |
b74f3fdd | 1978 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1979 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1980 | } |
1981 | ||
1982 | /* Return 1 if and only if the PWM interface is safe to use */ | |
b74f3fdd | 1983 | static int __devinit it87_check_pwm(struct device *dev) |
1da177e4 | 1984 | { |
b74f3fdd | 1985 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1986 | /* Some BIOSes fail to correctly configure the IT87 fans. All fans off |
1987 | * and polarity set to active low is sign that this is the case so we | |
1988 | * disable pwm control to protect the user. */ | |
b74f3fdd | 1989 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
1990 | if ((tmp & 0x87) == 0) { |
1991 | if (fix_pwm_polarity) { | |
1992 | /* The user asks us to attempt a chip reconfiguration. | |
1993 | * This means switching to active high polarity and | |
1994 | * inverting all fan speed values. */ | |
1995 | int i; | |
1996 | u8 pwm[3]; | |
1997 | ||
1998 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1999 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
2000 | IT87_REG_PWM(i)); |
2001 | ||
2002 | /* If any fan is in automatic pwm mode, the polarity | |
2003 | * might be correct, as suspicious as it seems, so we | |
2004 | * better don't change anything (but still disable the | |
2005 | * PWM interface). */ | |
2006 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { | |
b74f3fdd | 2007 | dev_info(dev, "Reconfiguring PWM to " |
1da177e4 | 2008 | "active high polarity\n"); |
b74f3fdd | 2009 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
2010 | tmp | 0x87); |
2011 | for (i = 0; i < 3; i++) | |
b74f3fdd | 2012 | it87_write_value(data, |
1da177e4 LT |
2013 | IT87_REG_PWM(i), |
2014 | 0x7f & ~pwm[i]); | |
2015 | return 1; | |
2016 | } | |
2017 | ||
b74f3fdd | 2018 | dev_info(dev, "PWM configuration is " |
1da177e4 LT |
2019 | "too broken to be fixed\n"); |
2020 | } | |
2021 | ||
b74f3fdd | 2022 | dev_info(dev, "Detected broken BIOS " |
1da177e4 LT |
2023 | "defaults, disabling PWM interface\n"); |
2024 | return 0; | |
2025 | } else if (fix_pwm_polarity) { | |
b74f3fdd | 2026 | dev_info(dev, "PWM configuration looks " |
1da177e4 LT |
2027 | "sane, won't touch\n"); |
2028 | } | |
2029 | ||
2030 | return 1; | |
2031 | } | |
2032 | ||
2033 | /* Called when we have found a new IT87. */ | |
b74f3fdd | 2034 | static void __devinit it87_init_device(struct platform_device *pdev) |
1da177e4 | 2035 | { |
591ec650 | 2036 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
b74f3fdd | 2037 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2038 | int tmp, i; |
591ec650 | 2039 | u8 mask; |
1da177e4 | 2040 | |
b99883dc JD |
2041 | /* For each PWM channel: |
2042 | * - If it is in automatic mode, setting to manual mode should set | |
2043 | * the fan to full speed by default. | |
2044 | * - If it is in manual mode, we need a mapping to temperature | |
2045 | * channels to use when later setting to automatic mode later. | |
2046 | * Use a 1:1 mapping by default (we are clueless.) | |
2047 | * In both cases, the value can (and should) be changed by the user | |
6229cdb2 JD |
2048 | * prior to switching to a different mode. |
2049 | * Note that this is no longer needed for the IT8721F and later, as | |
2050 | * these have separate registers for the temperature mapping and the | |
2051 | * manual duty cycle. */ | |
1da177e4 | 2052 | for (i = 0; i < 3; i++) { |
b99883dc JD |
2053 | data->pwm_temp_map[i] = i; |
2054 | data->pwm_duty[i] = 0x7f; /* Full speed */ | |
4f3f51bc | 2055 | data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
1da177e4 LT |
2056 | } |
2057 | ||
c5df9b7a JD |
2058 | /* Some chips seem to have default value 0xff for all limit |
2059 | * registers. For low voltage limits it makes no sense and triggers | |
2060 | * alarms, so change to 0 instead. For high temperature limits, it | |
2061 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
2062 | * but is still confusing, so change to 127 degrees C. */ | |
2063 | for (i = 0; i < 8; i++) { | |
b74f3fdd | 2064 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 2065 | if (tmp == 0xff) |
b74f3fdd | 2066 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
2067 | } |
2068 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 2069 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 2070 | if (tmp == 0xff) |
b74f3fdd | 2071 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
2072 | } |
2073 | ||
a00afb97 JD |
2074 | /* Temperature channels are not forcibly enabled, as they can be |
2075 | * set to two different sensor types and we can't guess which one | |
2076 | * is correct for a given system. These channels can be enabled at | |
2077 | * run-time through the temp{1-3}_type sysfs accessors if needed. */ | |
1da177e4 LT |
2078 | |
2079 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 2080 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
2081 | if ((tmp & 0xff) == 0) { |
2082 | /* Enable all voltage monitors */ | |
b74f3fdd | 2083 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
2084 | } |
2085 | ||
2086 | /* Check if tachometers are reset manually or by some reason */ | |
591ec650 | 2087 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
b74f3fdd | 2088 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
591ec650 | 2089 | if ((data->fan_main_ctrl & mask) == 0) { |
1da177e4 | 2090 | /* Enable all fan tachometers */ |
591ec650 | 2091 | data->fan_main_ctrl |= mask; |
5f2dc798 JD |
2092 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
2093 | data->fan_main_ctrl); | |
1da177e4 | 2094 | } |
9060f8bd | 2095 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 2096 | |
17d648bf | 2097 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 2098 | if (has_16bit_fans(data)) { |
b74f3fdd | 2099 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 2100 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 2101 | dev_dbg(&pdev->dev, |
17d648bf | 2102 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 2103 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
2104 | tmp | 0x07); |
2105 | } | |
816d8c6a AP |
2106 | /* IT8705F only supports three fans. */ |
2107 | if (data->type != it87) { | |
2108 | if (tmp & (1 << 4)) | |
2109 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
2110 | if (tmp & (1 << 5)) | |
2111 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
2112 | } | |
17d648bf JD |
2113 | } |
2114 | ||
591ec650 JD |
2115 | /* Fan input pins may be used for alternative functions */ |
2116 | data->has_fan &= ~sio_data->skip_fan; | |
2117 | ||
1da177e4 | 2118 | /* Start monitoring */ |
b74f3fdd | 2119 | it87_write_value(data, IT87_REG_CONFIG, |
2120 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | |
1da177e4 LT |
2121 | | (update_vbat ? 0x41 : 0x01)); |
2122 | } | |
2123 | ||
b99883dc JD |
2124 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
2125 | { | |
2126 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); | |
16b5dda2 | 2127 | if (has_newer_autopwm(data)) { |
b99883dc | 2128 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
6229cdb2 JD |
2129 | data->pwm_duty[nr] = it87_read_value(data, |
2130 | IT87_REG_PWM_DUTY(nr)); | |
2131 | } else { | |
2132 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
2133 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; | |
2134 | else /* Manual mode */ | |
2135 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; | |
2136 | } | |
4f3f51bc JD |
2137 | |
2138 | if (has_old_autopwm(data)) { | |
2139 | int i; | |
2140 | ||
2141 | for (i = 0; i < 5 ; i++) | |
2142 | data->auto_temp[nr][i] = it87_read_value(data, | |
2143 | IT87_REG_AUTO_TEMP(nr, i)); | |
2144 | for (i = 0; i < 3 ; i++) | |
2145 | data->auto_pwm[nr][i] = it87_read_value(data, | |
2146 | IT87_REG_AUTO_PWM(nr, i)); | |
2147 | } | |
b99883dc JD |
2148 | } |
2149 | ||
1da177e4 LT |
2150 | static struct it87_data *it87_update_device(struct device *dev) |
2151 | { | |
b74f3fdd | 2152 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
2153 | int i; |
2154 | ||
9a61bf63 | 2155 | mutex_lock(&data->update_lock); |
1da177e4 LT |
2156 | |
2157 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
2158 | || !data->valid) { | |
1da177e4 LT |
2159 | if (update_vbat) { |
2160 | /* Cleared after each update, so reenable. Value | |
5f2dc798 | 2161 | returned by this read will be previous value */ |
b74f3fdd | 2162 | it87_write_value(data, IT87_REG_CONFIG, |
5f2dc798 | 2163 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
1da177e4 LT |
2164 | } |
2165 | for (i = 0; i <= 7; i++) { | |
2166 | data->in[i] = | |
5f2dc798 | 2167 | it87_read_value(data, IT87_REG_VIN(i)); |
1da177e4 | 2168 | data->in_min[i] = |
5f2dc798 | 2169 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
1da177e4 | 2170 | data->in_max[i] = |
5f2dc798 | 2171 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 2172 | } |
3543a53f | 2173 | /* in8 (battery) has no limit registers */ |
5f2dc798 | 2174 | data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 2175 | |
c7f1f716 | 2176 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
2177 | /* Skip disabled fans */ |
2178 | if (!(data->has_fan & (1 << i))) | |
2179 | continue; | |
2180 | ||
1da177e4 | 2181 | data->fan_min[i] = |
5f2dc798 | 2182 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
b74f3fdd | 2183 | data->fan[i] = it87_read_value(data, |
c7f1f716 | 2184 | IT87_REG_FAN[i]); |
17d648bf | 2185 | /* Add high byte if in 16-bit mode */ |
0475169c | 2186 | if (has_16bit_fans(data)) { |
b74f3fdd | 2187 | data->fan[i] |= it87_read_value(data, |
c7f1f716 | 2188 | IT87_REG_FANX[i]) << 8; |
b74f3fdd | 2189 | data->fan_min[i] |= it87_read_value(data, |
c7f1f716 | 2190 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 2191 | } |
1da177e4 LT |
2192 | } |
2193 | for (i = 0; i < 3; i++) { | |
2194 | data->temp[i] = | |
5f2dc798 | 2195 | it87_read_value(data, IT87_REG_TEMP(i)); |
1da177e4 | 2196 | data->temp_high[i] = |
5f2dc798 | 2197 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
1da177e4 | 2198 | data->temp_low[i] = |
5f2dc798 | 2199 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
1da177e4 LT |
2200 | } |
2201 | ||
17d648bf | 2202 | /* Newer chips don't have clock dividers */ |
0475169c | 2203 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 2204 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
2205 | data->fan_div[0] = i & 0x07; |
2206 | data->fan_div[1] = (i >> 3) & 0x07; | |
2207 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
2208 | } | |
1da177e4 LT |
2209 | |
2210 | data->alarms = | |
b74f3fdd | 2211 | it87_read_value(data, IT87_REG_ALARM1) | |
2212 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
2213 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
d9b327c3 | 2214 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
b99883dc | 2215 | |
b74f3fdd | 2216 | data->fan_main_ctrl = it87_read_value(data, |
2217 | IT87_REG_FAN_MAIN_CTRL); | |
2218 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
b99883dc JD |
2219 | for (i = 0; i < 3; i++) |
2220 | it87_update_pwm_ctrl(data, i); | |
b74f3fdd | 2221 | |
2222 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
0475169c | 2223 | /* The 8705 does not have VID capability. |
44c1bcd4 | 2224 | The 8718 and later don't use IT87_REG_VID for the |
b4da93e4 | 2225 | same purpose. */ |
17d648bf | 2226 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 2227 | data->vid = it87_read_value(data, IT87_REG_VID); |
17d648bf JD |
2228 | /* The older IT8712F revisions had only 5 VID pins, |
2229 | but we assume it is always safe to read 6 bits. */ | |
2230 | data->vid &= 0x3f; | |
1da177e4 LT |
2231 | } |
2232 | data->last_updated = jiffies; | |
2233 | data->valid = 1; | |
2234 | } | |
2235 | ||
9a61bf63 | 2236 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
2237 | |
2238 | return data; | |
2239 | } | |
2240 | ||
b74f3fdd | 2241 | static int __init it87_device_add(unsigned short address, |
2242 | const struct it87_sio_data *sio_data) | |
2243 | { | |
2244 | struct resource res = { | |
87b4b663 BH |
2245 | .start = address + IT87_EC_OFFSET, |
2246 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 2247 | .name = DRVNAME, |
2248 | .flags = IORESOURCE_IO, | |
2249 | }; | |
2250 | int err; | |
2251 | ||
b9acb64a JD |
2252 | err = acpi_check_resource_conflict(&res); |
2253 | if (err) | |
2254 | goto exit; | |
2255 | ||
b74f3fdd | 2256 | pdev = platform_device_alloc(DRVNAME, address); |
2257 | if (!pdev) { | |
2258 | err = -ENOMEM; | |
a8ca1037 | 2259 | pr_err("Device allocation failed\n"); |
b74f3fdd | 2260 | goto exit; |
2261 | } | |
2262 | ||
2263 | err = platform_device_add_resources(pdev, &res, 1); | |
2264 | if (err) { | |
a8ca1037 | 2265 | pr_err("Device resource addition failed (%d)\n", err); |
b74f3fdd | 2266 | goto exit_device_put; |
2267 | } | |
2268 | ||
2269 | err = platform_device_add_data(pdev, sio_data, | |
2270 | sizeof(struct it87_sio_data)); | |
2271 | if (err) { | |
a8ca1037 | 2272 | pr_err("Platform data allocation failed\n"); |
b74f3fdd | 2273 | goto exit_device_put; |
2274 | } | |
2275 | ||
2276 | err = platform_device_add(pdev); | |
2277 | if (err) { | |
a8ca1037 | 2278 | pr_err("Device addition failed (%d)\n", err); |
b74f3fdd | 2279 | goto exit_device_put; |
2280 | } | |
2281 | ||
2282 | return 0; | |
2283 | ||
2284 | exit_device_put: | |
2285 | platform_device_put(pdev); | |
2286 | exit: | |
2287 | return err; | |
2288 | } | |
2289 | ||
1da177e4 LT |
2290 | static int __init sm_it87_init(void) |
2291 | { | |
b74f3fdd | 2292 | int err; |
5f2dc798 | 2293 | unsigned short isa_address = 0; |
b74f3fdd | 2294 | struct it87_sio_data sio_data; |
2295 | ||
98dd22c3 | 2296 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
b74f3fdd | 2297 | err = it87_find(&isa_address, &sio_data); |
2298 | if (err) | |
2299 | return err; | |
2300 | err = platform_driver_register(&it87_driver); | |
2301 | if (err) | |
2302 | return err; | |
fde09509 | 2303 | |
b74f3fdd | 2304 | err = it87_device_add(isa_address, &sio_data); |
5f2dc798 | 2305 | if (err) { |
b74f3fdd | 2306 | platform_driver_unregister(&it87_driver); |
2307 | return err; | |
2308 | } | |
2309 | ||
2310 | return 0; | |
1da177e4 LT |
2311 | } |
2312 | ||
2313 | static void __exit sm_it87_exit(void) | |
2314 | { | |
b74f3fdd | 2315 | platform_device_unregister(pdev); |
2316 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
2317 | } |
2318 | ||
2319 | ||
f1d8e332 | 2320 | MODULE_AUTHOR("Chris Gauthron, " |
b19367c6 | 2321 | "Jean Delvare <khali@linux-fr.org>"); |
44c1bcd4 | 2322 | MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); |
1da177e4 LT |
2323 | module_param(update_vbat, bool, 0); |
2324 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
2325 | module_param(fix_pwm_polarity, bool, 0); | |
5f2dc798 JD |
2326 | MODULE_PARM_DESC(fix_pwm_polarity, |
2327 | "Force PWM polarity to active high (DANGEROUS)"); | |
1da177e4 LT |
2328 | MODULE_LICENSE("GPL"); |
2329 | ||
2330 | module_init(sm_it87_init); | |
2331 | module_exit(sm_it87_exit); |