Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
5f2dc798 JD |
2 | * it87.c - Part of lm_sensors, Linux kernel modules for hardware |
3 | * monitoring. | |
4 | * | |
5 | * The IT8705F is an LPC-based Super I/O part that contains UARTs, a | |
6 | * parallel port, an IR port, a MIDI port, a floppy controller, etc., in | |
7 | * addition to an Environment Controller (Enhanced Hardware Monitor and | |
8 | * Fan Controller) | |
9 | * | |
10 | * This driver supports only the Environment Controller in the IT8705F and | |
11 | * similar parts. The other devices are supported by different drivers. | |
12 | * | |
13 | * Supports: IT8705F Super I/O chip w/LPC interface | |
14 | * IT8712F Super I/O chip w/LPC interface | |
15 | * IT8716F Super I/O chip w/LPC interface | |
16 | * IT8718F Super I/O chip w/LPC interface | |
17 | * IT8720F Super I/O chip w/LPC interface | |
44c1bcd4 | 18 | * IT8721F Super I/O chip w/LPC interface |
5f2dc798 | 19 | * IT8726F Super I/O chip w/LPC interface |
44c1bcd4 | 20 | * IT8758E Super I/O chip w/LPC interface |
5f2dc798 JD |
21 | * Sis950 A clone of the IT8705F |
22 | * | |
23 | * Copyright (C) 2001 Chris Gauthron | |
24 | * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> | |
25 | * | |
26 | * This program is free software; you can redistribute it and/or modify | |
27 | * it under the terms of the GNU General Public License as published by | |
28 | * the Free Software Foundation; either version 2 of the License, or | |
29 | * (at your option) any later version. | |
30 | * | |
31 | * This program is distributed in the hope that it will be useful, | |
32 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
33 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
34 | * GNU General Public License for more details. | |
35 | * | |
36 | * You should have received a copy of the GNU General Public License | |
37 | * along with this program; if not, write to the Free Software | |
38 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
39 | */ | |
1da177e4 | 40 | |
a8ca1037 JP |
41 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
42 | ||
1da177e4 LT |
43 | #include <linux/module.h> |
44 | #include <linux/init.h> | |
45 | #include <linux/slab.h> | |
46 | #include <linux/jiffies.h> | |
b74f3fdd | 47 | #include <linux/platform_device.h> |
943b0830 | 48 | #include <linux/hwmon.h> |
303760b4 JD |
49 | #include <linux/hwmon-sysfs.h> |
50 | #include <linux/hwmon-vid.h> | |
943b0830 | 51 | #include <linux/err.h> |
9a61bf63 | 52 | #include <linux/mutex.h> |
87808be4 | 53 | #include <linux/sysfs.h> |
98dd22c3 JD |
54 | #include <linux/string.h> |
55 | #include <linux/dmi.h> | |
b9acb64a | 56 | #include <linux/acpi.h> |
6055fae8 | 57 | #include <linux/io.h> |
1da177e4 | 58 | |
b74f3fdd | 59 | #define DRVNAME "it87" |
1da177e4 | 60 | |
44c1bcd4 | 61 | enum chips { it87, it8712, it8716, it8718, it8720, it8721 }; |
1da177e4 | 62 | |
67b671bc JD |
63 | static unsigned short force_id; |
64 | module_param(force_id, ushort, 0); | |
65 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
66 | ||
b74f3fdd | 67 | static struct platform_device *pdev; |
68 | ||
1da177e4 LT |
69 | #define REG 0x2e /* The register to read/write */ |
70 | #define DEV 0x07 /* Register: Logical device select */ | |
71 | #define VAL 0x2f /* The value to read/write */ | |
72 | #define PME 0x04 /* The device with the fan registers in it */ | |
b4da93e4 JMS |
73 | |
74 | /* The device with the IT8718F/IT8720F VID value in it */ | |
75 | #define GPIO 0x07 | |
76 | ||
1da177e4 LT |
77 | #define DEVID 0x20 /* Register: Device ID */ |
78 | #define DEVREV 0x22 /* Register: Device Revision */ | |
79 | ||
5b0380c9 | 80 | static inline int superio_inb(int reg) |
1da177e4 LT |
81 | { |
82 | outb(reg, REG); | |
83 | return inb(VAL); | |
84 | } | |
85 | ||
5b0380c9 | 86 | static inline void superio_outb(int reg, int val) |
436cad2a JD |
87 | { |
88 | outb(reg, REG); | |
89 | outb(val, VAL); | |
90 | } | |
91 | ||
1da177e4 LT |
92 | static int superio_inw(int reg) |
93 | { | |
94 | int val; | |
95 | outb(reg++, REG); | |
96 | val = inb(VAL) << 8; | |
97 | outb(reg, REG); | |
98 | val |= inb(VAL); | |
99 | return val; | |
100 | } | |
101 | ||
5b0380c9 | 102 | static inline void superio_select(int ldn) |
1da177e4 LT |
103 | { |
104 | outb(DEV, REG); | |
87673dd7 | 105 | outb(ldn, VAL); |
1da177e4 LT |
106 | } |
107 | ||
5b0380c9 | 108 | static inline int superio_enter(void) |
1da177e4 | 109 | { |
5b0380c9 NG |
110 | /* |
111 | * Try to reserve REG and REG + 1 for exclusive access. | |
112 | */ | |
113 | if (!request_muxed_region(REG, 2, DRVNAME)) | |
114 | return -EBUSY; | |
115 | ||
1da177e4 LT |
116 | outb(0x87, REG); |
117 | outb(0x01, REG); | |
118 | outb(0x55, REG); | |
119 | outb(0x55, REG); | |
5b0380c9 | 120 | return 0; |
1da177e4 LT |
121 | } |
122 | ||
5b0380c9 | 123 | static inline void superio_exit(void) |
1da177e4 LT |
124 | { |
125 | outb(0x02, REG); | |
126 | outb(0x02, VAL); | |
5b0380c9 | 127 | release_region(REG, 2); |
1da177e4 LT |
128 | } |
129 | ||
87673dd7 | 130 | /* Logical device 4 registers */ |
1da177e4 LT |
131 | #define IT8712F_DEVID 0x8712 |
132 | #define IT8705F_DEVID 0x8705 | |
17d648bf | 133 | #define IT8716F_DEVID 0x8716 |
87673dd7 | 134 | #define IT8718F_DEVID 0x8718 |
b4da93e4 | 135 | #define IT8720F_DEVID 0x8720 |
44c1bcd4 | 136 | #define IT8721F_DEVID 0x8721 |
08a8f6e9 | 137 | #define IT8726F_DEVID 0x8726 |
1da177e4 LT |
138 | #define IT87_ACT_REG 0x30 |
139 | #define IT87_BASE_REG 0x60 | |
140 | ||
87673dd7 | 141 | /* Logical device 7 registers (IT8712F and later) */ |
895ff267 | 142 | #define IT87_SIO_GPIO3_REG 0x27 |
591ec650 | 143 | #define IT87_SIO_GPIO5_REG 0x29 |
87673dd7 JD |
144 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
145 | #define IT87_SIO_VID_REG 0xfc /* VID value */ | |
d9b327c3 | 146 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
87673dd7 | 147 | |
1da177e4 LT |
148 | /* Update battery voltage after every reading if true */ |
149 | static int update_vbat; | |
150 | ||
151 | /* Not all BIOSes properly configure the PWM registers */ | |
152 | static int fix_pwm_polarity; | |
153 | ||
1da177e4 LT |
154 | /* Many IT87 constants specified below */ |
155 | ||
156 | /* Length of ISA address segment */ | |
157 | #define IT87_EXTENT 8 | |
158 | ||
87b4b663 BH |
159 | /* Length of ISA address segment for Environmental Controller */ |
160 | #define IT87_EC_EXTENT 2 | |
161 | ||
162 | /* Offset of EC registers from ISA base address */ | |
163 | #define IT87_EC_OFFSET 5 | |
164 | ||
165 | /* Where are the ISA address/data registers relative to the EC base address */ | |
166 | #define IT87_ADDR_REG_OFFSET 0 | |
167 | #define IT87_DATA_REG_OFFSET 1 | |
1da177e4 LT |
168 | |
169 | /*----- The IT87 registers -----*/ | |
170 | ||
171 | #define IT87_REG_CONFIG 0x00 | |
172 | ||
173 | #define IT87_REG_ALARM1 0x01 | |
174 | #define IT87_REG_ALARM2 0x02 | |
175 | #define IT87_REG_ALARM3 0x03 | |
176 | ||
b4da93e4 JMS |
177 | /* The IT8718F and IT8720F have the VID value in a different register, in |
178 | Super-I/O configuration space. */ | |
1da177e4 | 179 | #define IT87_REG_VID 0x0a |
0475169c AP |
180 | /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
181 | for fan divisors. Later IT8712F revisions must use 16-bit tachometer | |
182 | mode. */ | |
1da177e4 | 183 | #define IT87_REG_FAN_DIV 0x0b |
17d648bf | 184 | #define IT87_REG_FAN_16BIT 0x0c |
1da177e4 LT |
185 | |
186 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ | |
187 | ||
c7f1f716 JD |
188 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
189 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; | |
190 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; | |
191 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; | |
1da177e4 LT |
192 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
193 | #define IT87_REG_FAN_CTL 0x14 | |
194 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
6229cdb2 | 195 | #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
1da177e4 LT |
196 | |
197 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
198 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
199 | ||
200 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
201 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
202 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
203 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
204 | ||
1da177e4 LT |
205 | #define IT87_REG_VIN_ENABLE 0x50 |
206 | #define IT87_REG_TEMP_ENABLE 0x51 | |
d9b327c3 | 207 | #define IT87_REG_BEEP_ENABLE 0x5c |
1da177e4 LT |
208 | |
209 | #define IT87_REG_CHIPID 0x58 | |
210 | ||
4f3f51bc JD |
211 | #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
212 | #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) | |
213 | ||
1da177e4 | 214 | |
b74f3fdd | 215 | struct it87_sio_data { |
216 | enum chips type; | |
217 | /* Values read from Super-I/O config space */ | |
0475169c | 218 | u8 revision; |
b74f3fdd | 219 | u8 vid_value; |
d9b327c3 | 220 | u8 beep_pin; |
738e5e05 | 221 | u8 internal; /* Internal sensors can be labeled */ |
591ec650 | 222 | /* Features skipped based on config or DMI */ |
895ff267 | 223 | u8 skip_vid; |
591ec650 | 224 | u8 skip_fan; |
98dd22c3 | 225 | u8 skip_pwm; |
b74f3fdd | 226 | }; |
227 | ||
ed6bafbf JD |
228 | /* For each registered chip, we need to keep some data in memory. |
229 | The structure is dynamically allocated. */ | |
1da177e4 | 230 | struct it87_data { |
1beeffe4 | 231 | struct device *hwmon_dev; |
1da177e4 | 232 | enum chips type; |
0475169c | 233 | u8 revision; |
1da177e4 | 234 | |
b74f3fdd | 235 | unsigned short addr; |
236 | const char *name; | |
9a61bf63 | 237 | struct mutex update_lock; |
1da177e4 LT |
238 | char valid; /* !=0 if following fields are valid */ |
239 | unsigned long last_updated; /* In jiffies */ | |
240 | ||
44c1bcd4 | 241 | u16 in_scaled; /* Internal voltage sensors are scaled */ |
1da177e4 | 242 | u8 in[9]; /* Register value */ |
3543a53f JD |
243 | u8 in_max[8]; /* Register value */ |
244 | u8 in_min[8]; /* Register value */ | |
9060f8bd | 245 | u8 has_fan; /* Bitfield, fans enabled */ |
c7f1f716 JD |
246 | u16 fan[5]; /* Register values, possibly combined */ |
247 | u16 fan_min[5]; /* Register values, possibly combined */ | |
e267d250 JD |
248 | s8 temp[3]; /* Register value */ |
249 | s8 temp_high[3]; /* Register value */ | |
250 | s8 temp_low[3]; /* Register value */ | |
1da177e4 LT |
251 | u8 sensor; /* Register value */ |
252 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
253 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 254 | u8 vrm; |
1da177e4 | 255 | u32 alarms; /* Register encoding, combined */ |
d9b327c3 | 256 | u8 beeps; /* Register encoding */ |
1da177e4 | 257 | u8 fan_main_ctrl; /* Register value */ |
f8d0c19a | 258 | u8 fan_ctl; /* Register value */ |
b99883dc | 259 | |
6229cdb2 JD |
260 | /* The following 3 arrays correspond to the same registers up to |
261 | * the IT8720F. The meaning of bits 6-0 depends on the value of bit | |
262 | * 7, and we want to preserve settings on mode changes, so we have | |
263 | * to track all values separately. | |
264 | * Starting with the IT8721F, the manual PWM duty cycles are stored | |
265 | * in separate registers (8-bit values), so the separate tracking | |
266 | * is no longer needed, but it is still done to keep the driver | |
267 | * simple. */ | |
b99883dc | 268 | u8 pwm_ctrl[3]; /* Register value */ |
6229cdb2 | 269 | u8 pwm_duty[3]; /* Manual PWM value set by user */ |
b99883dc | 270 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
4f3f51bc JD |
271 | |
272 | /* Automatic fan speed control registers */ | |
273 | u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ | |
274 | s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ | |
1da177e4 | 275 | }; |
0df6454d | 276 | |
44c1bcd4 JD |
277 | static u8 in_to_reg(const struct it87_data *data, int nr, long val) |
278 | { | |
279 | long lsb; | |
280 | ||
281 | if (data->type == it8721) { | |
282 | if (data->in_scaled & (1 << nr)) | |
283 | lsb = 24; | |
284 | else | |
285 | lsb = 12; | |
286 | } else | |
287 | lsb = 16; | |
288 | ||
289 | val = DIV_ROUND_CLOSEST(val, lsb); | |
290 | return SENSORS_LIMIT(val, 0, 255); | |
291 | } | |
292 | ||
293 | static int in_from_reg(const struct it87_data *data, int nr, int val) | |
294 | { | |
295 | if (data->type == it8721) { | |
296 | if (data->in_scaled & (1 << nr)) | |
297 | return val * 24; | |
298 | else | |
299 | return val * 12; | |
300 | } else | |
301 | return val * 16; | |
302 | } | |
0df6454d JD |
303 | |
304 | static inline u8 FAN_TO_REG(long rpm, int div) | |
305 | { | |
306 | if (rpm == 0) | |
307 | return 255; | |
308 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
309 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
310 | 254); | |
311 | } | |
312 | ||
313 | static inline u16 FAN16_TO_REG(long rpm) | |
314 | { | |
315 | if (rpm == 0) | |
316 | return 0xffff; | |
317 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
318 | } | |
319 | ||
320 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ | |
321 | 1350000 / ((val) * (div))) | |
322 | /* The divider is fixed to 2 in 16-bit mode */ | |
323 | #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ | |
324 | 1350000 / ((val) * 2)) | |
325 | ||
326 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \ | |
327 | ((val) + 500) / 1000), -128, 127)) | |
328 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
329 | ||
44c1bcd4 JD |
330 | static u8 pwm_to_reg(const struct it87_data *data, long val) |
331 | { | |
332 | if (data->type == it8721) | |
333 | return val; | |
334 | else | |
335 | return val >> 1; | |
336 | } | |
337 | ||
338 | static int pwm_from_reg(const struct it87_data *data, u8 reg) | |
339 | { | |
340 | if (data->type == it8721) | |
341 | return reg; | |
342 | else | |
343 | return (reg & 0x7f) << 1; | |
344 | } | |
345 | ||
0df6454d JD |
346 | |
347 | static int DIV_TO_REG(int val) | |
348 | { | |
349 | int answer = 0; | |
350 | while (answer < 7 && (val >>= 1)) | |
351 | answer++; | |
352 | return answer; | |
353 | } | |
354 | #define DIV_FROM_REG(val) (1 << (val)) | |
355 | ||
356 | static const unsigned int pwm_freq[8] = { | |
357 | 48000000 / 128, | |
358 | 24000000 / 128, | |
359 | 12000000 / 128, | |
360 | 8000000 / 128, | |
361 | 6000000 / 128, | |
362 | 3000000 / 128, | |
363 | 1500000 / 128, | |
364 | 750000 / 128, | |
365 | }; | |
1da177e4 | 366 | |
0475169c AP |
367 | static inline int has_16bit_fans(const struct it87_data *data) |
368 | { | |
816d8c6a | 369 | /* IT8705F Datasheet 0.4.1, 3h == Version G. |
859b9ef3 | 370 | IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
816d8c6a AP |
371 | These are the first revisions with 16bit tachometer support. */ |
372 | return (data->type == it87 && data->revision >= 0x03) | |
859b9ef3 | 373 | || (data->type == it8712 && data->revision >= 0x08) |
0475169c | 374 | || data->type == it8716 |
b4da93e4 | 375 | || data->type == it8718 |
44c1bcd4 JD |
376 | || data->type == it8720 |
377 | || data->type == it8721; | |
0475169c | 378 | } |
1da177e4 | 379 | |
4f3f51bc JD |
380 | static inline int has_old_autopwm(const struct it87_data *data) |
381 | { | |
382 | /* The old automatic fan speed control interface is implemented | |
383 | by IT8705F chips up to revision F and IT8712F chips up to | |
384 | revision G. */ | |
385 | return (data->type == it87 && data->revision < 0x03) | |
386 | || (data->type == it8712 && data->revision < 0x08); | |
387 | } | |
388 | ||
b74f3fdd | 389 | static int it87_probe(struct platform_device *pdev); |
d0546128 | 390 | static int __devexit it87_remove(struct platform_device *pdev); |
1da177e4 | 391 | |
b74f3fdd | 392 | static int it87_read_value(struct it87_data *data, u8 reg); |
393 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 394 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 395 | static int it87_check_pwm(struct device *dev); |
396 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
397 | |
398 | ||
b74f3fdd | 399 | static struct platform_driver it87_driver = { |
cdaf7934 | 400 | .driver = { |
87218842 | 401 | .owner = THIS_MODULE, |
b74f3fdd | 402 | .name = DRVNAME, |
cdaf7934 | 403 | }, |
b74f3fdd | 404 | .probe = it87_probe, |
405 | .remove = __devexit_p(it87_remove), | |
fde09509 JD |
406 | }; |
407 | ||
20ad93d4 JD |
408 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
409 | char *buf) | |
1da177e4 | 410 | { |
20ad93d4 JD |
411 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
412 | int nr = sensor_attr->index; | |
413 | ||
1da177e4 | 414 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 415 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr])); |
1da177e4 LT |
416 | } |
417 | ||
20ad93d4 JD |
418 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
419 | char *buf) | |
1da177e4 | 420 | { |
20ad93d4 JD |
421 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
422 | int nr = sensor_attr->index; | |
423 | ||
1da177e4 | 424 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 425 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_min[nr])); |
1da177e4 LT |
426 | } |
427 | ||
20ad93d4 JD |
428 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
429 | char *buf) | |
1da177e4 | 430 | { |
20ad93d4 JD |
431 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
432 | int nr = sensor_attr->index; | |
433 | ||
1da177e4 | 434 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 | 435 | return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_max[nr])); |
1da177e4 LT |
436 | } |
437 | ||
20ad93d4 JD |
438 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
439 | const char *buf, size_t count) | |
1da177e4 | 440 | { |
20ad93d4 JD |
441 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
442 | int nr = sensor_attr->index; | |
443 | ||
b74f3fdd | 444 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
445 | unsigned long val; |
446 | ||
447 | if (strict_strtoul(buf, 10, &val) < 0) | |
448 | return -EINVAL; | |
1da177e4 | 449 | |
9a61bf63 | 450 | mutex_lock(&data->update_lock); |
44c1bcd4 | 451 | data->in_min[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 452 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
1da177e4 | 453 | data->in_min[nr]); |
9a61bf63 | 454 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
455 | return count; |
456 | } | |
20ad93d4 JD |
457 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
458 | const char *buf, size_t count) | |
1da177e4 | 459 | { |
20ad93d4 JD |
460 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
461 | int nr = sensor_attr->index; | |
462 | ||
b74f3fdd | 463 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
464 | unsigned long val; |
465 | ||
466 | if (strict_strtoul(buf, 10, &val) < 0) | |
467 | return -EINVAL; | |
1da177e4 | 468 | |
9a61bf63 | 469 | mutex_lock(&data->update_lock); |
44c1bcd4 | 470 | data->in_max[nr] = in_to_reg(data, nr, val); |
b74f3fdd | 471 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
1da177e4 | 472 | data->in_max[nr]); |
9a61bf63 | 473 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
474 | return count; |
475 | } | |
476 | ||
477 | #define show_in_offset(offset) \ | |
20ad93d4 JD |
478 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
479 | show_in, NULL, offset); | |
1da177e4 LT |
480 | |
481 | #define limit_in_offset(offset) \ | |
20ad93d4 JD |
482 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
483 | show_in_min, set_in_min, offset); \ | |
484 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
485 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
486 | |
487 | show_in_offset(0); | |
488 | limit_in_offset(0); | |
489 | show_in_offset(1); | |
490 | limit_in_offset(1); | |
491 | show_in_offset(2); | |
492 | limit_in_offset(2); | |
493 | show_in_offset(3); | |
494 | limit_in_offset(3); | |
495 | show_in_offset(4); | |
496 | limit_in_offset(4); | |
497 | show_in_offset(5); | |
498 | limit_in_offset(5); | |
499 | show_in_offset(6); | |
500 | limit_in_offset(6); | |
501 | show_in_offset(7); | |
502 | limit_in_offset(7); | |
503 | show_in_offset(8); | |
504 | ||
505 | /* 3 temperatures */ | |
20ad93d4 JD |
506 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
507 | char *buf) | |
1da177e4 | 508 | { |
20ad93d4 JD |
509 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
510 | int nr = sensor_attr->index; | |
511 | ||
1da177e4 LT |
512 | struct it87_data *data = it87_update_device(dev); |
513 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
514 | } | |
20ad93d4 JD |
515 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
516 | char *buf) | |
1da177e4 | 517 | { |
20ad93d4 JD |
518 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
519 | int nr = sensor_attr->index; | |
520 | ||
1da177e4 LT |
521 | struct it87_data *data = it87_update_device(dev); |
522 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
523 | } | |
20ad93d4 JD |
524 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
525 | char *buf) | |
1da177e4 | 526 | { |
20ad93d4 JD |
527 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
528 | int nr = sensor_attr->index; | |
529 | ||
1da177e4 LT |
530 | struct it87_data *data = it87_update_device(dev); |
531 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); | |
532 | } | |
20ad93d4 JD |
533 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
534 | const char *buf, size_t count) | |
1da177e4 | 535 | { |
20ad93d4 JD |
536 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
537 | int nr = sensor_attr->index; | |
538 | ||
b74f3fdd | 539 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
540 | long val; |
541 | ||
542 | if (strict_strtol(buf, 10, &val) < 0) | |
543 | return -EINVAL; | |
1da177e4 | 544 | |
9a61bf63 | 545 | mutex_lock(&data->update_lock); |
1da177e4 | 546 | data->temp_high[nr] = TEMP_TO_REG(val); |
b74f3fdd | 547 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
9a61bf63 | 548 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
549 | return count; |
550 | } | |
20ad93d4 JD |
551 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
552 | const char *buf, size_t count) | |
1da177e4 | 553 | { |
20ad93d4 JD |
554 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
555 | int nr = sensor_attr->index; | |
556 | ||
b74f3fdd | 557 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
558 | long val; |
559 | ||
560 | if (strict_strtol(buf, 10, &val) < 0) | |
561 | return -EINVAL; | |
1da177e4 | 562 | |
9a61bf63 | 563 | mutex_lock(&data->update_lock); |
1da177e4 | 564 | data->temp_low[nr] = TEMP_TO_REG(val); |
b74f3fdd | 565 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
9a61bf63 | 566 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
567 | return count; |
568 | } | |
569 | #define show_temp_offset(offset) \ | |
20ad93d4 JD |
570 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
571 | show_temp, NULL, offset - 1); \ | |
572 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
573 | show_temp_max, set_temp_max, offset - 1); \ | |
574 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
575 | show_temp_min, set_temp_min, offset - 1); | |
1da177e4 LT |
576 | |
577 | show_temp_offset(1); | |
578 | show_temp_offset(2); | |
579 | show_temp_offset(3); | |
580 | ||
20ad93d4 JD |
581 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
582 | char *buf) | |
1da177e4 | 583 | { |
20ad93d4 JD |
584 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
585 | int nr = sensor_attr->index; | |
586 | ||
1da177e4 | 587 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
588 | u8 reg = data->sensor; /* In case the value is updated while |
589 | we use it */ | |
590 | ||
1da177e4 LT |
591 | if (reg & (1 << nr)) |
592 | return sprintf(buf, "3\n"); /* thermal diode */ | |
593 | if (reg & (8 << nr)) | |
4ed10779 | 594 | return sprintf(buf, "4\n"); /* thermistor */ |
1da177e4 LT |
595 | return sprintf(buf, "0\n"); /* disabled */ |
596 | } | |
20ad93d4 JD |
597 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
598 | const char *buf, size_t count) | |
1da177e4 | 599 | { |
20ad93d4 JD |
600 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
601 | int nr = sensor_attr->index; | |
602 | ||
b74f3fdd | 603 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 604 | long val; |
8acf07c5 | 605 | u8 reg; |
f5f64501 JD |
606 | |
607 | if (strict_strtol(buf, 10, &val) < 0) | |
608 | return -EINVAL; | |
1da177e4 | 609 | |
8acf07c5 JD |
610 | reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
611 | reg &= ~(1 << nr); | |
612 | reg &= ~(8 << nr); | |
4ed10779 JD |
613 | if (val == 2) { /* backwards compatibility */ |
614 | dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " | |
615 | "instead\n"); | |
616 | val = 4; | |
617 | } | |
618 | /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ | |
1da177e4 | 619 | if (val == 3) |
8acf07c5 | 620 | reg |= 1 << nr; |
4ed10779 | 621 | else if (val == 4) |
8acf07c5 JD |
622 | reg |= 8 << nr; |
623 | else if (val != 0) | |
1da177e4 | 624 | return -EINVAL; |
8acf07c5 JD |
625 | |
626 | mutex_lock(&data->update_lock); | |
627 | data->sensor = reg; | |
b74f3fdd | 628 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
2b3d1d87 | 629 | data->valid = 0; /* Force cache refresh */ |
9a61bf63 | 630 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
631 | return count; |
632 | } | |
633 | #define show_sensor_offset(offset) \ | |
20ad93d4 JD |
634 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
635 | show_sensor, set_sensor, offset - 1); | |
1da177e4 LT |
636 | |
637 | show_sensor_offset(1); | |
638 | show_sensor_offset(2); | |
639 | show_sensor_offset(3); | |
640 | ||
641 | /* 3 Fans */ | |
b99883dc JD |
642 | |
643 | static int pwm_mode(const struct it87_data *data, int nr) | |
644 | { | |
645 | int ctrl = data->fan_main_ctrl & (1 << nr); | |
646 | ||
647 | if (ctrl == 0) /* Full speed */ | |
648 | return 0; | |
649 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
650 | return 2; | |
651 | else /* Manual mode */ | |
652 | return 1; | |
653 | } | |
654 | ||
20ad93d4 JD |
655 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
656 | char *buf) | |
1da177e4 | 657 | { |
20ad93d4 JD |
658 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
659 | int nr = sensor_attr->index; | |
660 | ||
1da177e4 | 661 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 | 662 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
1da177e4 LT |
663 | DIV_FROM_REG(data->fan_div[nr]))); |
664 | } | |
20ad93d4 JD |
665 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
666 | char *buf) | |
1da177e4 | 667 | { |
20ad93d4 JD |
668 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
669 | int nr = sensor_attr->index; | |
670 | ||
1da177e4 | 671 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
672 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
673 | DIV_FROM_REG(data->fan_div[nr]))); | |
1da177e4 | 674 | } |
20ad93d4 JD |
675 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
676 | char *buf) | |
1da177e4 | 677 | { |
20ad93d4 JD |
678 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
679 | int nr = sensor_attr->index; | |
680 | ||
1da177e4 LT |
681 | struct it87_data *data = it87_update_device(dev); |
682 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
683 | } | |
5f2dc798 JD |
684 | static ssize_t show_pwm_enable(struct device *dev, |
685 | struct device_attribute *attr, char *buf) | |
1da177e4 | 686 | { |
20ad93d4 JD |
687 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
688 | int nr = sensor_attr->index; | |
689 | ||
1da177e4 | 690 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 691 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
1da177e4 | 692 | } |
20ad93d4 JD |
693 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
694 | char *buf) | |
1da177e4 | 695 | { |
20ad93d4 JD |
696 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
697 | int nr = sensor_attr->index; | |
698 | ||
1da177e4 | 699 | struct it87_data *data = it87_update_device(dev); |
44c1bcd4 JD |
700 | return sprintf(buf, "%d\n", |
701 | pwm_from_reg(data, data->pwm_duty[nr])); | |
1da177e4 | 702 | } |
f8d0c19a JD |
703 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
704 | char *buf) | |
705 | { | |
706 | struct it87_data *data = it87_update_device(dev); | |
707 | int index = (data->fan_ctl >> 4) & 0x07; | |
708 | ||
709 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
710 | } | |
20ad93d4 JD |
711 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
712 | const char *buf, size_t count) | |
1da177e4 | 713 | { |
20ad93d4 JD |
714 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
715 | int nr = sensor_attr->index; | |
716 | ||
b74f3fdd | 717 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 718 | long val; |
7f999aa7 | 719 | u8 reg; |
1da177e4 | 720 | |
f5f64501 JD |
721 | if (strict_strtol(buf, 10, &val) < 0) |
722 | return -EINVAL; | |
723 | ||
9a61bf63 | 724 | mutex_lock(&data->update_lock); |
b74f3fdd | 725 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
07eab46d | 726 | switch (nr) { |
5f2dc798 JD |
727 | case 0: |
728 | data->fan_div[nr] = reg & 0x07; | |
729 | break; | |
730 | case 1: | |
731 | data->fan_div[nr] = (reg >> 3) & 0x07; | |
732 | break; | |
733 | case 2: | |
734 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; | |
735 | break; | |
07eab46d JD |
736 | } |
737 | ||
1da177e4 | 738 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
c7f1f716 | 739 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
9a61bf63 | 740 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
741 | return count; |
742 | } | |
20ad93d4 JD |
743 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
744 | const char *buf, size_t count) | |
1da177e4 | 745 | { |
20ad93d4 JD |
746 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
747 | int nr = sensor_attr->index; | |
748 | ||
b74f3fdd | 749 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 750 | unsigned long val; |
8ab4ec3e | 751 | int min; |
1da177e4 LT |
752 | u8 old; |
753 | ||
f5f64501 JD |
754 | if (strict_strtoul(buf, 10, &val) < 0) |
755 | return -EINVAL; | |
756 | ||
9a61bf63 | 757 | mutex_lock(&data->update_lock); |
b74f3fdd | 758 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 759 | |
8ab4ec3e JD |
760 | /* Save fan min limit */ |
761 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
1da177e4 LT |
762 | |
763 | switch (nr) { | |
764 | case 0: | |
765 | case 1: | |
766 | data->fan_div[nr] = DIV_TO_REG(val); | |
767 | break; | |
768 | case 2: | |
769 | if (val < 8) | |
770 | data->fan_div[nr] = 1; | |
771 | else | |
772 | data->fan_div[nr] = 3; | |
773 | } | |
774 | val = old & 0x80; | |
775 | val |= (data->fan_div[0] & 0x07); | |
776 | val |= (data->fan_div[1] & 0x07) << 3; | |
777 | if (data->fan_div[2] == 3) | |
778 | val |= 0x1 << 6; | |
b74f3fdd | 779 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 780 | |
8ab4ec3e JD |
781 | /* Restore fan min limit */ |
782 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
c7f1f716 | 783 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
8ab4ec3e | 784 | |
9a61bf63 | 785 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
786 | return count; |
787 | } | |
cccfc9c4 JD |
788 | |
789 | /* Returns 0 if OK, -EINVAL otherwise */ | |
790 | static int check_trip_points(struct device *dev, int nr) | |
791 | { | |
792 | const struct it87_data *data = dev_get_drvdata(dev); | |
793 | int i, err = 0; | |
794 | ||
795 | if (has_old_autopwm(data)) { | |
796 | for (i = 0; i < 3; i++) { | |
797 | if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) | |
798 | err = -EINVAL; | |
799 | } | |
800 | for (i = 0; i < 2; i++) { | |
801 | if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) | |
802 | err = -EINVAL; | |
803 | } | |
804 | } | |
805 | ||
806 | if (err) { | |
807 | dev_err(dev, "Inconsistent trip points, not switching to " | |
808 | "automatic mode\n"); | |
809 | dev_err(dev, "Adjust the trip points and try again\n"); | |
810 | } | |
811 | return err; | |
812 | } | |
813 | ||
20ad93d4 JD |
814 | static ssize_t set_pwm_enable(struct device *dev, |
815 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 816 | { |
20ad93d4 JD |
817 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
818 | int nr = sensor_attr->index; | |
819 | ||
b74f3fdd | 820 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 821 | long val; |
1da177e4 | 822 | |
f5f64501 | 823 | if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
b99883dc JD |
824 | return -EINVAL; |
825 | ||
cccfc9c4 JD |
826 | /* Check trip points before switching to automatic mode */ |
827 | if (val == 2) { | |
828 | if (check_trip_points(dev, nr) < 0) | |
829 | return -EINVAL; | |
830 | } | |
831 | ||
9a61bf63 | 832 | mutex_lock(&data->update_lock); |
1da177e4 LT |
833 | |
834 | if (val == 0) { | |
835 | int tmp; | |
836 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 837 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
838 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
839 | /* set on/off mode */ |
840 | data->fan_main_ctrl &= ~(1 << nr); | |
5f2dc798 JD |
841 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
842 | data->fan_main_ctrl); | |
b99883dc JD |
843 | } else { |
844 | if (val == 1) /* Manual mode */ | |
6229cdb2 JD |
845 | data->pwm_ctrl[nr] = data->type == it8721 ? |
846 | data->pwm_temp_map[nr] : | |
847 | data->pwm_duty[nr]; | |
b99883dc JD |
848 | else /* Automatic mode */ |
849 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
850 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1da177e4 LT |
851 | /* set SmartGuardian mode */ |
852 | data->fan_main_ctrl |= (1 << nr); | |
5f2dc798 JD |
853 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
854 | data->fan_main_ctrl); | |
1da177e4 LT |
855 | } |
856 | ||
9a61bf63 | 857 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
858 | return count; |
859 | } | |
20ad93d4 JD |
860 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
861 | const char *buf, size_t count) | |
1da177e4 | 862 | { |
20ad93d4 JD |
863 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
864 | int nr = sensor_attr->index; | |
865 | ||
b74f3fdd | 866 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 867 | long val; |
1da177e4 | 868 | |
f5f64501 | 869 | if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1da177e4 LT |
870 | return -EINVAL; |
871 | ||
9a61bf63 | 872 | mutex_lock(&data->update_lock); |
6229cdb2 JD |
873 | if (data->type == it8721) { |
874 | /* If we are in automatic mode, the PWM duty cycle register | |
875 | * is read-only so we can't write the value */ | |
876 | if (data->pwm_ctrl[nr] & 0x80) { | |
877 | mutex_unlock(&data->update_lock); | |
878 | return -EBUSY; | |
879 | } | |
880 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
881 | it87_write_value(data, IT87_REG_PWM_DUTY(nr), | |
882 | data->pwm_duty[nr]); | |
883 | } else { | |
884 | data->pwm_duty[nr] = pwm_to_reg(data, val); | |
885 | /* If we are in manual mode, write the duty cycle immediately; | |
886 | * otherwise, just store it for later use. */ | |
887 | if (!(data->pwm_ctrl[nr] & 0x80)) { | |
888 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
889 | it87_write_value(data, IT87_REG_PWM(nr), | |
890 | data->pwm_ctrl[nr]); | |
891 | } | |
b99883dc | 892 | } |
9a61bf63 | 893 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
894 | return count; |
895 | } | |
f8d0c19a JD |
896 | static ssize_t set_pwm_freq(struct device *dev, |
897 | struct device_attribute *attr, const char *buf, size_t count) | |
898 | { | |
b74f3fdd | 899 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 900 | unsigned long val; |
f8d0c19a JD |
901 | int i; |
902 | ||
f5f64501 JD |
903 | if (strict_strtoul(buf, 10, &val) < 0) |
904 | return -EINVAL; | |
905 | ||
f8d0c19a JD |
906 | /* Search for the nearest available frequency */ |
907 | for (i = 0; i < 7; i++) { | |
908 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
909 | break; | |
910 | } | |
911 | ||
912 | mutex_lock(&data->update_lock); | |
b74f3fdd | 913 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 914 | data->fan_ctl |= i << 4; |
b74f3fdd | 915 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
916 | mutex_unlock(&data->update_lock); |
917 | ||
918 | return count; | |
919 | } | |
94ac7ee6 JD |
920 | static ssize_t show_pwm_temp_map(struct device *dev, |
921 | struct device_attribute *attr, char *buf) | |
922 | { | |
923 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
924 | int nr = sensor_attr->index; | |
925 | ||
926 | struct it87_data *data = it87_update_device(dev); | |
927 | int map; | |
928 | ||
929 | if (data->pwm_temp_map[nr] < 3) | |
930 | map = 1 << data->pwm_temp_map[nr]; | |
931 | else | |
932 | map = 0; /* Should never happen */ | |
933 | return sprintf(buf, "%d\n", map); | |
934 | } | |
935 | static ssize_t set_pwm_temp_map(struct device *dev, | |
936 | struct device_attribute *attr, const char *buf, size_t count) | |
937 | { | |
938 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
939 | int nr = sensor_attr->index; | |
940 | ||
941 | struct it87_data *data = dev_get_drvdata(dev); | |
942 | long val; | |
943 | u8 reg; | |
944 | ||
4f3f51bc JD |
945 | /* This check can go away if we ever support automatic fan speed |
946 | control on newer chips. */ | |
947 | if (!has_old_autopwm(data)) { | |
948 | dev_notice(dev, "Mapping change disabled for safety reasons\n"); | |
949 | return -EINVAL; | |
950 | } | |
951 | ||
94ac7ee6 JD |
952 | if (strict_strtol(buf, 10, &val) < 0) |
953 | return -EINVAL; | |
954 | ||
955 | switch (val) { | |
956 | case (1 << 0): | |
957 | reg = 0x00; | |
958 | break; | |
959 | case (1 << 1): | |
960 | reg = 0x01; | |
961 | break; | |
962 | case (1 << 2): | |
963 | reg = 0x02; | |
964 | break; | |
965 | default: | |
966 | return -EINVAL; | |
967 | } | |
968 | ||
969 | mutex_lock(&data->update_lock); | |
970 | data->pwm_temp_map[nr] = reg; | |
971 | /* If we are in automatic mode, write the temp mapping immediately; | |
972 | * otherwise, just store it for later use. */ | |
973 | if (data->pwm_ctrl[nr] & 0x80) { | |
974 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
975 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
976 | } | |
977 | mutex_unlock(&data->update_lock); | |
978 | return count; | |
979 | } | |
1da177e4 | 980 | |
4f3f51bc JD |
981 | static ssize_t show_auto_pwm(struct device *dev, |
982 | struct device_attribute *attr, char *buf) | |
983 | { | |
984 | struct it87_data *data = it87_update_device(dev); | |
985 | struct sensor_device_attribute_2 *sensor_attr = | |
986 | to_sensor_dev_attr_2(attr); | |
987 | int nr = sensor_attr->nr; | |
988 | int point = sensor_attr->index; | |
989 | ||
44c1bcd4 JD |
990 | return sprintf(buf, "%d\n", |
991 | pwm_from_reg(data, data->auto_pwm[nr][point])); | |
4f3f51bc JD |
992 | } |
993 | ||
994 | static ssize_t set_auto_pwm(struct device *dev, | |
995 | struct device_attribute *attr, const char *buf, size_t count) | |
996 | { | |
997 | struct it87_data *data = dev_get_drvdata(dev); | |
998 | struct sensor_device_attribute_2 *sensor_attr = | |
999 | to_sensor_dev_attr_2(attr); | |
1000 | int nr = sensor_attr->nr; | |
1001 | int point = sensor_attr->index; | |
1002 | long val; | |
1003 | ||
1004 | if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) | |
1005 | return -EINVAL; | |
1006 | ||
1007 | mutex_lock(&data->update_lock); | |
44c1bcd4 | 1008 | data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
4f3f51bc JD |
1009 | it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
1010 | data->auto_pwm[nr][point]); | |
1011 | mutex_unlock(&data->update_lock); | |
1012 | return count; | |
1013 | } | |
1014 | ||
1015 | static ssize_t show_auto_temp(struct device *dev, | |
1016 | struct device_attribute *attr, char *buf) | |
1017 | { | |
1018 | struct it87_data *data = it87_update_device(dev); | |
1019 | struct sensor_device_attribute_2 *sensor_attr = | |
1020 | to_sensor_dev_attr_2(attr); | |
1021 | int nr = sensor_attr->nr; | |
1022 | int point = sensor_attr->index; | |
1023 | ||
1024 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); | |
1025 | } | |
1026 | ||
1027 | static ssize_t set_auto_temp(struct device *dev, | |
1028 | struct device_attribute *attr, const char *buf, size_t count) | |
1029 | { | |
1030 | struct it87_data *data = dev_get_drvdata(dev); | |
1031 | struct sensor_device_attribute_2 *sensor_attr = | |
1032 | to_sensor_dev_attr_2(attr); | |
1033 | int nr = sensor_attr->nr; | |
1034 | int point = sensor_attr->index; | |
1035 | long val; | |
1036 | ||
1037 | if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) | |
1038 | return -EINVAL; | |
1039 | ||
1040 | mutex_lock(&data->update_lock); | |
1041 | data->auto_temp[nr][point] = TEMP_TO_REG(val); | |
1042 | it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), | |
1043 | data->auto_temp[nr][point]); | |
1044 | mutex_unlock(&data->update_lock); | |
1045 | return count; | |
1046 | } | |
1047 | ||
20ad93d4 JD |
1048 | #define show_fan_offset(offset) \ |
1049 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
1050 | show_fan, NULL, offset - 1); \ | |
1051 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1052 | show_fan_min, set_fan_min, offset - 1); \ | |
1053 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
1054 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
1055 | |
1056 | show_fan_offset(1); | |
1057 | show_fan_offset(2); | |
1058 | show_fan_offset(3); | |
1059 | ||
1060 | #define show_pwm_offset(offset) \ | |
20ad93d4 JD |
1061 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
1062 | show_pwm_enable, set_pwm_enable, offset - 1); \ | |
1063 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
f8d0c19a JD |
1064 | show_pwm, set_pwm, offset - 1); \ |
1065 | static DEVICE_ATTR(pwm##offset##_freq, \ | |
1066 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ | |
94ac7ee6 JD |
1067 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ |
1068 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ | |
4f3f51bc JD |
1069 | S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \ |
1070 | offset - 1); \ | |
1071 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \ | |
1072 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1073 | offset - 1, 0); \ | |
1074 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \ | |
1075 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1076 | offset - 1, 1); \ | |
1077 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \ | |
1078 | S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ | |
1079 | offset - 1, 2); \ | |
1080 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \ | |
1081 | S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \ | |
1082 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \ | |
1083 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1084 | offset - 1, 1); \ | |
1085 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \ | |
1086 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1087 | offset - 1, 0); \ | |
1088 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \ | |
1089 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1090 | offset - 1, 2); \ | |
1091 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \ | |
1092 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1093 | offset - 1, 3); \ | |
1094 | static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \ | |
1095 | S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ | |
1096 | offset - 1, 4); | |
1da177e4 LT |
1097 | |
1098 | show_pwm_offset(1); | |
1099 | show_pwm_offset(2); | |
1100 | show_pwm_offset(3); | |
1101 | ||
17d648bf JD |
1102 | /* A different set of callbacks for 16-bit fans */ |
1103 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, | |
1104 | char *buf) | |
1105 | { | |
1106 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1107 | int nr = sensor_attr->index; | |
1108 | struct it87_data *data = it87_update_device(dev); | |
1109 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); | |
1110 | } | |
1111 | ||
1112 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, | |
1113 | char *buf) | |
1114 | { | |
1115 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1116 | int nr = sensor_attr->index; | |
1117 | struct it87_data *data = it87_update_device(dev); | |
1118 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); | |
1119 | } | |
1120 | ||
1121 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, | |
1122 | const char *buf, size_t count) | |
1123 | { | |
1124 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
1125 | int nr = sensor_attr->index; | |
b74f3fdd | 1126 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1127 | long val; |
1128 | ||
1129 | if (strict_strtol(buf, 10, &val) < 0) | |
1130 | return -EINVAL; | |
17d648bf JD |
1131 | |
1132 | mutex_lock(&data->update_lock); | |
1133 | data->fan_min[nr] = FAN16_TO_REG(val); | |
c7f1f716 | 1134 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
17d648bf | 1135 | data->fan_min[nr] & 0xff); |
c7f1f716 | 1136 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
17d648bf JD |
1137 | data->fan_min[nr] >> 8); |
1138 | mutex_unlock(&data->update_lock); | |
1139 | return count; | |
1140 | } | |
1141 | ||
1142 | /* We want to use the same sysfs file names as 8-bit fans, but we need | |
1143 | different variable names, so we have to use SENSOR_ATTR instead of | |
1144 | SENSOR_DEVICE_ATTR. */ | |
1145 | #define show_fan16_offset(offset) \ | |
1146 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ | |
1147 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ | |
1148 | show_fan16, NULL, offset - 1); \ | |
1149 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ | |
1150 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
1151 | show_fan16_min, set_fan16_min, offset - 1) | |
1152 | ||
1153 | show_fan16_offset(1); | |
1154 | show_fan16_offset(2); | |
1155 | show_fan16_offset(3); | |
c7f1f716 JD |
1156 | show_fan16_offset(4); |
1157 | show_fan16_offset(5); | |
17d648bf | 1158 | |
1da177e4 | 1159 | /* Alarms */ |
5f2dc798 JD |
1160 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
1161 | char *buf) | |
1da177e4 LT |
1162 | { |
1163 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 1164 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 1165 | } |
1d66c64c | 1166 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 1167 | |
0124dd78 JD |
1168 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
1169 | char *buf) | |
1170 | { | |
1171 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1172 | struct it87_data *data = it87_update_device(dev); | |
1173 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
1174 | } | |
3d30f9e6 JD |
1175 | |
1176 | static ssize_t clear_intrusion(struct device *dev, struct device_attribute | |
1177 | *attr, const char *buf, size_t count) | |
1178 | { | |
1179 | struct it87_data *data = dev_get_drvdata(dev); | |
1180 | long val; | |
1181 | int config; | |
1182 | ||
1183 | if (strict_strtol(buf, 10, &val) < 0 || val != 0) | |
1184 | return -EINVAL; | |
1185 | ||
1186 | mutex_lock(&data->update_lock); | |
1187 | config = it87_read_value(data, IT87_REG_CONFIG); | |
1188 | if (config < 0) { | |
1189 | count = config; | |
1190 | } else { | |
1191 | config |= 1 << 5; | |
1192 | it87_write_value(data, IT87_REG_CONFIG, config); | |
1193 | /* Invalidate cache to force re-read */ | |
1194 | data->valid = 0; | |
1195 | } | |
1196 | mutex_unlock(&data->update_lock); | |
1197 | ||
1198 | return count; | |
1199 | } | |
1200 | ||
0124dd78 JD |
1201 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
1202 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
1203 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
1204 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
1205 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
1206 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
1207 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1208 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
1209 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
1210 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
1211 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
1212 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
1213 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
1214 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
1215 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
1216 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
3d30f9e6 JD |
1217 | static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, |
1218 | show_alarm, clear_intrusion, 4); | |
0124dd78 | 1219 | |
d9b327c3 JD |
1220 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
1221 | char *buf) | |
1222 | { | |
1223 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1224 | struct it87_data *data = it87_update_device(dev); | |
1225 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); | |
1226 | } | |
1227 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
1228 | const char *buf, size_t count) | |
1229 | { | |
1230 | int bitnr = to_sensor_dev_attr(attr)->index; | |
1231 | struct it87_data *data = dev_get_drvdata(dev); | |
1232 | long val; | |
1233 | ||
1234 | if (strict_strtol(buf, 10, &val) < 0 | |
1235 | || (val != 0 && val != 1)) | |
1236 | return -EINVAL; | |
1237 | ||
1238 | mutex_lock(&data->update_lock); | |
1239 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
1240 | if (val) | |
1241 | data->beeps |= (1 << bitnr); | |
1242 | else | |
1243 | data->beeps &= ~(1 << bitnr); | |
1244 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); | |
1245 | mutex_unlock(&data->update_lock); | |
1246 | return count; | |
1247 | } | |
1248 | ||
1249 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
1250 | show_beep, set_beep, 1); | |
1251 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); | |
1252 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); | |
1253 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); | |
1254 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); | |
1255 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); | |
1256 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); | |
1257 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); | |
1258 | /* fanX_beep writability is set later */ | |
1259 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); | |
1260 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); | |
1261 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); | |
1262 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); | |
1263 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); | |
1264 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
1265 | show_beep, set_beep, 2); | |
1266 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); | |
1267 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); | |
1268 | ||
5f2dc798 JD |
1269 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1270 | char *buf) | |
1da177e4 | 1271 | { |
90d6619a | 1272 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 1273 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 | 1274 | } |
5f2dc798 JD |
1275 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1276 | const char *buf, size_t count) | |
1da177e4 | 1277 | { |
b74f3fdd | 1278 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1279 | unsigned long val; |
1280 | ||
1281 | if (strict_strtoul(buf, 10, &val) < 0) | |
1282 | return -EINVAL; | |
1da177e4 | 1283 | |
1da177e4 LT |
1284 | data->vrm = val; |
1285 | ||
1286 | return count; | |
1287 | } | |
1288 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 | 1289 | |
5f2dc798 JD |
1290 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1291 | char *buf) | |
1da177e4 LT |
1292 | { |
1293 | struct it87_data *data = it87_update_device(dev); | |
1294 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
1295 | } | |
1296 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 1297 | |
738e5e05 JD |
1298 | static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
1299 | char *buf) | |
1300 | { | |
1301 | static const char *labels[] = { | |
1302 | "+5V", | |
1303 | "5VSB", | |
1304 | "Vbat", | |
1305 | }; | |
44c1bcd4 JD |
1306 | static const char *labels_it8721[] = { |
1307 | "+3.3V", | |
1308 | "3VSB", | |
1309 | "Vbat", | |
1310 | }; | |
1311 | struct it87_data *data = dev_get_drvdata(dev); | |
738e5e05 JD |
1312 | int nr = to_sensor_dev_attr(attr)->index; |
1313 | ||
44c1bcd4 JD |
1314 | return sprintf(buf, "%s\n", data->type == it8721 ? labels_it8721[nr] |
1315 | : labels[nr]); | |
738e5e05 JD |
1316 | } |
1317 | static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); | |
1318 | static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); | |
1319 | static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); | |
1320 | ||
b74f3fdd | 1321 | static ssize_t show_name(struct device *dev, struct device_attribute |
1322 | *devattr, char *buf) | |
1323 | { | |
1324 | struct it87_data *data = dev_get_drvdata(dev); | |
1325 | return sprintf(buf, "%s\n", data->name); | |
1326 | } | |
1327 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1328 | ||
87808be4 JD |
1329 | static struct attribute *it87_attributes[] = { |
1330 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1331 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1332 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1333 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1334 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1335 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1336 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1337 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1338 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
1339 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1340 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1341 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1342 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1343 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1344 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1345 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1346 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1347 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1348 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1349 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1350 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
1351 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
1352 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1353 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1354 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 JD |
1355 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1356 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1357 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1358 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
1359 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
1360 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
1361 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1362 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
87808be4 JD |
1363 | |
1364 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1365 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1366 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1367 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1368 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1369 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1370 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1371 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1372 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1373 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
1374 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
1375 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 JD |
1376 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1377 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1378 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
87808be4 JD |
1379 | |
1380 | &dev_attr_alarms.attr, | |
3d30f9e6 | 1381 | &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
b74f3fdd | 1382 | &dev_attr_name.attr, |
87808be4 JD |
1383 | NULL |
1384 | }; | |
1385 | ||
1386 | static const struct attribute_group it87_group = { | |
1387 | .attrs = it87_attributes, | |
1388 | }; | |
1389 | ||
d9b327c3 JD |
1390 | static struct attribute *it87_attributes_beep[] = { |
1391 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
1392 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
1393 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
1394 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
1395 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
1396 | &sensor_dev_attr_in5_beep.dev_attr.attr, | |
1397 | &sensor_dev_attr_in6_beep.dev_attr.attr, | |
1398 | &sensor_dev_attr_in7_beep.dev_attr.attr, | |
1399 | ||
1400 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
1401 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
1402 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
1403 | NULL | |
1404 | }; | |
1405 | ||
1406 | static const struct attribute_group it87_group_beep = { | |
1407 | .attrs = it87_attributes_beep, | |
1408 | }; | |
1409 | ||
723a0aa0 | 1410 | static struct attribute *it87_attributes_fan16[5][3+1] = { { |
87808be4 JD |
1411 | &sensor_dev_attr_fan1_input16.dev_attr.attr, |
1412 | &sensor_dev_attr_fan1_min16.dev_attr.attr, | |
723a0aa0 JD |
1413 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1414 | NULL | |
1415 | }, { | |
87808be4 JD |
1416 | &sensor_dev_attr_fan2_input16.dev_attr.attr, |
1417 | &sensor_dev_attr_fan2_min16.dev_attr.attr, | |
723a0aa0 JD |
1418 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1419 | NULL | |
1420 | }, { | |
87808be4 JD |
1421 | &sensor_dev_attr_fan3_input16.dev_attr.attr, |
1422 | &sensor_dev_attr_fan3_min16.dev_attr.attr, | |
723a0aa0 JD |
1423 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1424 | NULL | |
1425 | }, { | |
c7f1f716 JD |
1426 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
1427 | &sensor_dev_attr_fan4_min16.dev_attr.attr, | |
723a0aa0 JD |
1428 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1429 | NULL | |
1430 | }, { | |
c7f1f716 JD |
1431 | &sensor_dev_attr_fan5_input16.dev_attr.attr, |
1432 | &sensor_dev_attr_fan5_min16.dev_attr.attr, | |
723a0aa0 JD |
1433 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1434 | NULL | |
1435 | } }; | |
1436 | ||
1437 | static const struct attribute_group it87_group_fan16[5] = { | |
1438 | { .attrs = it87_attributes_fan16[0] }, | |
1439 | { .attrs = it87_attributes_fan16[1] }, | |
1440 | { .attrs = it87_attributes_fan16[2] }, | |
1441 | { .attrs = it87_attributes_fan16[3] }, | |
1442 | { .attrs = it87_attributes_fan16[4] }, | |
1443 | }; | |
87808be4 | 1444 | |
723a0aa0 | 1445 | static struct attribute *it87_attributes_fan[3][4+1] = { { |
87808be4 JD |
1446 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1447 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1448 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
723a0aa0 JD |
1449 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1450 | NULL | |
1451 | }, { | |
87808be4 JD |
1452 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1453 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1454 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
723a0aa0 JD |
1455 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1456 | NULL | |
1457 | }, { | |
87808be4 JD |
1458 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1459 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1460 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
0124dd78 | 1461 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
723a0aa0 JD |
1462 | NULL |
1463 | } }; | |
1464 | ||
1465 | static const struct attribute_group it87_group_fan[3] = { | |
1466 | { .attrs = it87_attributes_fan[0] }, | |
1467 | { .attrs = it87_attributes_fan[1] }, | |
1468 | { .attrs = it87_attributes_fan[2] }, | |
1469 | }; | |
1470 | ||
1471 | static const struct attribute_group * | |
1472 | it87_get_fan_group(const struct it87_data *data) | |
1473 | { | |
1474 | return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; | |
1475 | } | |
0124dd78 | 1476 | |
723a0aa0 | 1477 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
87808be4 | 1478 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
87808be4 | 1479 | &sensor_dev_attr_pwm1.dev_attr.attr, |
d5b0b5d6 | 1480 | &dev_attr_pwm1_freq.attr, |
94ac7ee6 | 1481 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1482 | NULL |
1483 | }, { | |
1484 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1485 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1486 | &dev_attr_pwm2_freq.attr, | |
94ac7ee6 | 1487 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1488 | NULL |
1489 | }, { | |
1490 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1491 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1492 | &dev_attr_pwm3_freq.attr, | |
94ac7ee6 | 1493 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1494 | NULL |
1495 | } }; | |
87808be4 | 1496 | |
723a0aa0 JD |
1497 | static const struct attribute_group it87_group_pwm[3] = { |
1498 | { .attrs = it87_attributes_pwm[0] }, | |
1499 | { .attrs = it87_attributes_pwm[1] }, | |
1500 | { .attrs = it87_attributes_pwm[2] }, | |
1501 | }; | |
1502 | ||
4f3f51bc JD |
1503 | static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
1504 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1505 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1506 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
1507 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
1508 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1509 | &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, | |
1510 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1511 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
1512 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
1513 | NULL | |
1514 | }, { | |
1515 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1516 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1517 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
1518 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
1519 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1520 | &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, | |
1521 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1522 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
1523 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
1524 | NULL | |
1525 | }, { | |
1526 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1527 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1528 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
1529 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
1530 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1531 | &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, | |
1532 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1533 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
1534 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
1535 | NULL | |
1536 | } }; | |
1537 | ||
1538 | static const struct attribute_group it87_group_autopwm[3] = { | |
1539 | { .attrs = it87_attributes_autopwm[0] }, | |
1540 | { .attrs = it87_attributes_autopwm[1] }, | |
1541 | { .attrs = it87_attributes_autopwm[2] }, | |
1542 | }; | |
1543 | ||
d9b327c3 JD |
1544 | static struct attribute *it87_attributes_fan_beep[] = { |
1545 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
1546 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
1547 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
1548 | &sensor_dev_attr_fan4_beep.dev_attr.attr, | |
1549 | &sensor_dev_attr_fan5_beep.dev_attr.attr, | |
1550 | }; | |
1551 | ||
6a8d7acf | 1552 | static struct attribute *it87_attributes_vid[] = { |
87808be4 JD |
1553 | &dev_attr_vrm.attr, |
1554 | &dev_attr_cpu0_vid.attr, | |
1555 | NULL | |
1556 | }; | |
1557 | ||
6a8d7acf JD |
1558 | static const struct attribute_group it87_group_vid = { |
1559 | .attrs = it87_attributes_vid, | |
87808be4 | 1560 | }; |
1da177e4 | 1561 | |
738e5e05 JD |
1562 | static struct attribute *it87_attributes_label[] = { |
1563 | &sensor_dev_attr_in3_label.dev_attr.attr, | |
1564 | &sensor_dev_attr_in7_label.dev_attr.attr, | |
1565 | &sensor_dev_attr_in8_label.dev_attr.attr, | |
1566 | NULL | |
1567 | }; | |
1568 | ||
1569 | static const struct attribute_group it87_group_label = { | |
fa8b6975 | 1570 | .attrs = it87_attributes_label, |
738e5e05 JD |
1571 | }; |
1572 | ||
2d8672c5 | 1573 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 1574 | static int __init it87_find(unsigned short *address, |
1575 | struct it87_sio_data *sio_data) | |
1da177e4 | 1576 | { |
5b0380c9 | 1577 | int err; |
b74f3fdd | 1578 | u16 chip_type; |
98dd22c3 | 1579 | const char *board_vendor, *board_name; |
1da177e4 | 1580 | |
5b0380c9 NG |
1581 | err = superio_enter(); |
1582 | if (err) | |
1583 | return err; | |
1584 | ||
1585 | err = -ENODEV; | |
67b671bc | 1586 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 1587 | |
1588 | switch (chip_type) { | |
1589 | case IT8705F_DEVID: | |
1590 | sio_data->type = it87; | |
1591 | break; | |
1592 | case IT8712F_DEVID: | |
1593 | sio_data->type = it8712; | |
1594 | break; | |
1595 | case IT8716F_DEVID: | |
1596 | case IT8726F_DEVID: | |
1597 | sio_data->type = it8716; | |
1598 | break; | |
1599 | case IT8718F_DEVID: | |
1600 | sio_data->type = it8718; | |
1601 | break; | |
b4da93e4 JMS |
1602 | case IT8720F_DEVID: |
1603 | sio_data->type = it8720; | |
1604 | break; | |
44c1bcd4 JD |
1605 | case IT8721F_DEVID: |
1606 | sio_data->type = it8721; | |
1607 | break; | |
b74f3fdd | 1608 | case 0xffff: /* No device at all */ |
1609 | goto exit; | |
1610 | default: | |
a8ca1037 | 1611 | pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
b74f3fdd | 1612 | goto exit; |
1613 | } | |
1da177e4 | 1614 | |
87673dd7 | 1615 | superio_select(PME); |
1da177e4 | 1616 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
a8ca1037 | 1617 | pr_info("Device not activated, skipping\n"); |
1da177e4 LT |
1618 | goto exit; |
1619 | } | |
1620 | ||
1621 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1622 | if (*address == 0) { | |
a8ca1037 | 1623 | pr_info("Base address not set, skipping\n"); |
1da177e4 LT |
1624 | goto exit; |
1625 | } | |
1626 | ||
1627 | err = 0; | |
0475169c | 1628 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
a8ca1037 | 1629 | pr_info("Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1630 | chip_type, *address, sio_data->revision); |
1da177e4 | 1631 | |
738e5e05 JD |
1632 | /* in8 (Vbat) is always internal */ |
1633 | sio_data->internal = (1 << 2); | |
1634 | ||
87673dd7 | 1635 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
895ff267 JD |
1636 | if (sio_data->type == it87) { |
1637 | /* The IT8705F doesn't have VID pins at all */ | |
1638 | sio_data->skip_vid = 1; | |
d9b327c3 JD |
1639 | |
1640 | /* The IT8705F has a different LD number for GPIO */ | |
1641 | superio_select(5); | |
1642 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
895ff267 | 1643 | } else { |
87673dd7 JD |
1644 | int reg; |
1645 | ||
1646 | superio_select(GPIO); | |
44c1bcd4 | 1647 | |
895ff267 | 1648 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
44c1bcd4 JD |
1649 | if (sio_data->type == it8721) { |
1650 | /* The IT8721F/IT8758E doesn't have VID pins at all */ | |
895ff267 | 1651 | sio_data->skip_vid = 1; |
44c1bcd4 JD |
1652 | } else { |
1653 | /* We need at least 4 VID pins */ | |
1654 | if (reg & 0x0f) { | |
a8ca1037 | 1655 | pr_info("VID is disabled (pins used for GPIO)\n"); |
44c1bcd4 JD |
1656 | sio_data->skip_vid = 1; |
1657 | } | |
895ff267 JD |
1658 | } |
1659 | ||
591ec650 JD |
1660 | /* Check if fan3 is there or not */ |
1661 | if (reg & (1 << 6)) | |
1662 | sio_data->skip_pwm |= (1 << 2); | |
1663 | if (reg & (1 << 7)) | |
1664 | sio_data->skip_fan |= (1 << 2); | |
1665 | ||
1666 | /* Check if fan2 is there or not */ | |
1667 | reg = superio_inb(IT87_SIO_GPIO5_REG); | |
1668 | if (reg & (1 << 1)) | |
1669 | sio_data->skip_pwm |= (1 << 1); | |
1670 | if (reg & (1 << 2)) | |
1671 | sio_data->skip_fan |= (1 << 1); | |
1672 | ||
895ff267 JD |
1673 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1674 | && !(sio_data->skip_vid)) | |
b74f3fdd | 1675 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1676 | |
1677 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
436cad2a JD |
1678 | /* |
1679 | * The IT8720F has no VIN7 pin, so VCCH should always be | |
1680 | * routed internally to VIN7 with an internal divider. | |
1681 | * Curiously, there still is a configuration bit to control | |
1682 | * this, which means it can be set incorrectly. And even | |
1683 | * more curiously, many boards out there are improperly | |
1684 | * configured, even though the IT8720F datasheet claims | |
1685 | * that the internal routing of VCCH to VIN7 is the default | |
1686 | * setting. So we force the internal routing in this case. | |
1687 | */ | |
1688 | if (sio_data->type == it8720 && !(reg & (1 << 1))) { | |
1689 | reg |= (1 << 1); | |
1690 | superio_outb(IT87_SIO_PINX2_REG, reg); | |
a8ca1037 | 1691 | pr_notice("Routing internal VCCH to in7\n"); |
436cad2a | 1692 | } |
87673dd7 | 1693 | if (reg & (1 << 0)) |
738e5e05 | 1694 | sio_data->internal |= (1 << 0); |
44c1bcd4 | 1695 | if ((reg & (1 << 1)) || sio_data->type == it8721) |
738e5e05 | 1696 | sio_data->internal |= (1 << 1); |
d9b327c3 JD |
1697 | |
1698 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
87673dd7 | 1699 | } |
d9b327c3 | 1700 | if (sio_data->beep_pin) |
a8ca1037 | 1701 | pr_info("Beeping is supported\n"); |
87673dd7 | 1702 | |
98dd22c3 JD |
1703 | /* Disable specific features based on DMI strings */ |
1704 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1705 | board_name = dmi_get_system_info(DMI_BOARD_NAME); | |
1706 | if (board_vendor && board_name) { | |
1707 | if (strcmp(board_vendor, "nVIDIA") == 0 | |
1708 | && strcmp(board_name, "FN68PT") == 0) { | |
1709 | /* On the Shuttle SN68PT, FAN_CTL2 is apparently not | |
1710 | connected to a fan, but to something else. One user | |
1711 | has reported instant system power-off when changing | |
1712 | the PWM2 duty cycle, so we disable it. | |
1713 | I use the board name string as the trigger in case | |
1714 | the same board is ever used in other systems. */ | |
a8ca1037 | 1715 | pr_info("Disabling pwm2 due to hardware constraints\n"); |
98dd22c3 JD |
1716 | sio_data->skip_pwm = (1 << 1); |
1717 | } | |
1718 | } | |
1719 | ||
1da177e4 LT |
1720 | exit: |
1721 | superio_exit(); | |
1722 | return err; | |
1723 | } | |
1724 | ||
723a0aa0 JD |
1725 | static void it87_remove_files(struct device *dev) |
1726 | { | |
1727 | struct it87_data *data = platform_get_drvdata(pdev); | |
1728 | struct it87_sio_data *sio_data = dev->platform_data; | |
1729 | const struct attribute_group *fan_group = it87_get_fan_group(data); | |
1730 | int i; | |
1731 | ||
1732 | sysfs_remove_group(&dev->kobj, &it87_group); | |
d9b327c3 JD |
1733 | if (sio_data->beep_pin) |
1734 | sysfs_remove_group(&dev->kobj, &it87_group_beep); | |
723a0aa0 JD |
1735 | for (i = 0; i < 5; i++) { |
1736 | if (!(data->has_fan & (1 << i))) | |
1737 | continue; | |
1738 | sysfs_remove_group(&dev->kobj, &fan_group[i]); | |
d9b327c3 JD |
1739 | if (sio_data->beep_pin) |
1740 | sysfs_remove_file(&dev->kobj, | |
1741 | it87_attributes_fan_beep[i]); | |
723a0aa0 JD |
1742 | } |
1743 | for (i = 0; i < 3; i++) { | |
1744 | if (sio_data->skip_pwm & (1 << 0)) | |
1745 | continue; | |
1746 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); | |
4f3f51bc JD |
1747 | if (has_old_autopwm(data)) |
1748 | sysfs_remove_group(&dev->kobj, | |
1749 | &it87_group_autopwm[i]); | |
723a0aa0 | 1750 | } |
6a8d7acf JD |
1751 | if (!sio_data->skip_vid) |
1752 | sysfs_remove_group(&dev->kobj, &it87_group_vid); | |
738e5e05 | 1753 | sysfs_remove_group(&dev->kobj, &it87_group_label); |
723a0aa0 JD |
1754 | } |
1755 | ||
b74f3fdd | 1756 | static int __devinit it87_probe(struct platform_device *pdev) |
1da177e4 | 1757 | { |
1da177e4 | 1758 | struct it87_data *data; |
b74f3fdd | 1759 | struct resource *res; |
1760 | struct device *dev = &pdev->dev; | |
1761 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 JD |
1762 | const struct attribute_group *fan_group; |
1763 | int err = 0, i; | |
1da177e4 | 1764 | int enable_pwm_interface; |
d9b327c3 | 1765 | int fan_beep_need_rw; |
b74f3fdd | 1766 | static const char *names[] = { |
1767 | "it87", | |
1768 | "it8712", | |
1769 | "it8716", | |
1770 | "it8718", | |
b4da93e4 | 1771 | "it8720", |
44c1bcd4 | 1772 | "it8721", |
b74f3fdd | 1773 | }; |
1774 | ||
1775 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
87b4b663 | 1776 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
b74f3fdd | 1777 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1778 | (unsigned long)res->start, | |
87b4b663 | 1779 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
8e9afcbb JD |
1780 | err = -EBUSY; |
1781 | goto ERROR0; | |
1782 | } | |
1da177e4 | 1783 | |
5f2dc798 JD |
1784 | data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); |
1785 | if (!data) { | |
1da177e4 LT |
1786 | err = -ENOMEM; |
1787 | goto ERROR1; | |
1788 | } | |
1da177e4 | 1789 | |
b74f3fdd | 1790 | data->addr = res->start; |
1791 | data->type = sio_data->type; | |
0475169c | 1792 | data->revision = sio_data->revision; |
b74f3fdd | 1793 | data->name = names[sio_data->type]; |
1da177e4 LT |
1794 | |
1795 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 1796 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
1797 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { | |
8e9afcbb JD |
1798 | err = -ENODEV; |
1799 | goto ERROR2; | |
1da177e4 LT |
1800 | } |
1801 | ||
b74f3fdd | 1802 | platform_set_drvdata(pdev, data); |
1da177e4 | 1803 | |
9a61bf63 | 1804 | mutex_init(&data->update_lock); |
1da177e4 | 1805 | |
1da177e4 | 1806 | /* Check PWM configuration */ |
b74f3fdd | 1807 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 | 1808 | |
44c1bcd4 JD |
1809 | /* Starting with IT8721F, we handle scaling of internal voltages */ |
1810 | if (data->type == it8721) { | |
1811 | if (sio_data->internal & (1 << 0)) | |
1812 | data->in_scaled |= (1 << 3); /* in3 is AVCC */ | |
1813 | if (sio_data->internal & (1 << 1)) | |
1814 | data->in_scaled |= (1 << 7); /* in7 is VSB */ | |
1815 | if (sio_data->internal & (1 << 2)) | |
1816 | data->in_scaled |= (1 << 8); /* in8 is Vbat */ | |
1817 | } | |
1818 | ||
1da177e4 | 1819 | /* Initialize the IT87 chip */ |
b74f3fdd | 1820 | it87_init_device(pdev); |
1da177e4 LT |
1821 | |
1822 | /* Register sysfs hooks */ | |
5f2dc798 JD |
1823 | err = sysfs_create_group(&dev->kobj, &it87_group); |
1824 | if (err) | |
b74f3fdd | 1825 | goto ERROR2; |
17d648bf | 1826 | |
d9b327c3 JD |
1827 | if (sio_data->beep_pin) { |
1828 | err = sysfs_create_group(&dev->kobj, &it87_group_beep); | |
1829 | if (err) | |
1830 | goto ERROR4; | |
1831 | } | |
1832 | ||
9060f8bd | 1833 | /* Do not create fan files for disabled fans */ |
723a0aa0 | 1834 | fan_group = it87_get_fan_group(data); |
d9b327c3 | 1835 | fan_beep_need_rw = 1; |
723a0aa0 JD |
1836 | for (i = 0; i < 5; i++) { |
1837 | if (!(data->has_fan & (1 << i))) | |
1838 | continue; | |
1839 | err = sysfs_create_group(&dev->kobj, &fan_group[i]); | |
1840 | if (err) | |
1841 | goto ERROR4; | |
d9b327c3 JD |
1842 | |
1843 | if (sio_data->beep_pin) { | |
1844 | err = sysfs_create_file(&dev->kobj, | |
1845 | it87_attributes_fan_beep[i]); | |
1846 | if (err) | |
1847 | goto ERROR4; | |
1848 | if (!fan_beep_need_rw) | |
1849 | continue; | |
1850 | ||
1851 | /* As we have a single beep enable bit for all fans, | |
1852 | * only the first enabled fan has a writable attribute | |
1853 | * for it. */ | |
1854 | if (sysfs_chmod_file(&dev->kobj, | |
1855 | it87_attributes_fan_beep[i], | |
1856 | S_IRUGO | S_IWUSR)) | |
1857 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", | |
1858 | i + 1); | |
1859 | fan_beep_need_rw = 0; | |
1860 | } | |
17d648bf JD |
1861 | } |
1862 | ||
1da177e4 | 1863 | if (enable_pwm_interface) { |
723a0aa0 JD |
1864 | for (i = 0; i < 3; i++) { |
1865 | if (sio_data->skip_pwm & (1 << i)) | |
1866 | continue; | |
1867 | err = sysfs_create_group(&dev->kobj, | |
1868 | &it87_group_pwm[i]); | |
1869 | if (err) | |
98dd22c3 | 1870 | goto ERROR4; |
4f3f51bc JD |
1871 | |
1872 | if (!has_old_autopwm(data)) | |
1873 | continue; | |
1874 | err = sysfs_create_group(&dev->kobj, | |
1875 | &it87_group_autopwm[i]); | |
1876 | if (err) | |
1877 | goto ERROR4; | |
98dd22c3 | 1878 | } |
1da177e4 LT |
1879 | } |
1880 | ||
895ff267 | 1881 | if (!sio_data->skip_vid) { |
303760b4 | 1882 | data->vrm = vid_which_vrm(); |
87673dd7 | 1883 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 1884 | data->vid = sio_data->vid_value; |
6a8d7acf JD |
1885 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
1886 | if (err) | |
87808be4 JD |
1887 | goto ERROR4; |
1888 | } | |
1889 | ||
738e5e05 JD |
1890 | /* Export labels for internal sensors */ |
1891 | for (i = 0; i < 3; i++) { | |
1892 | if (!(sio_data->internal & (1 << i))) | |
1893 | continue; | |
1894 | err = sysfs_create_file(&dev->kobj, | |
1895 | it87_attributes_label[i]); | |
1896 | if (err) | |
1897 | goto ERROR4; | |
1898 | } | |
1899 | ||
1beeffe4 TJ |
1900 | data->hwmon_dev = hwmon_device_register(dev); |
1901 | if (IS_ERR(data->hwmon_dev)) { | |
1902 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 | 1903 | goto ERROR4; |
1da177e4 LT |
1904 | } |
1905 | ||
1906 | return 0; | |
1907 | ||
87808be4 | 1908 | ERROR4: |
723a0aa0 | 1909 | it87_remove_files(dev); |
1da177e4 | 1910 | ERROR2: |
b74f3fdd | 1911 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
1912 | kfree(data); |
1913 | ERROR1: | |
87b4b663 | 1914 | release_region(res->start, IT87_EC_EXTENT); |
1da177e4 LT |
1915 | ERROR0: |
1916 | return err; | |
1917 | } | |
1918 | ||
b74f3fdd | 1919 | static int __devexit it87_remove(struct platform_device *pdev) |
1da177e4 | 1920 | { |
b74f3fdd | 1921 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 1922 | |
1beeffe4 | 1923 | hwmon_device_unregister(data->hwmon_dev); |
723a0aa0 | 1924 | it87_remove_files(&pdev->dev); |
943b0830 | 1925 | |
87b4b663 | 1926 | release_region(data->addr, IT87_EC_EXTENT); |
b74f3fdd | 1927 | platform_set_drvdata(pdev, NULL); |
943b0830 | 1928 | kfree(data); |
1da177e4 LT |
1929 | |
1930 | return 0; | |
1931 | } | |
1932 | ||
7f999aa7 | 1933 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1934 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1935 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1936 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 1937 | { |
b74f3fdd | 1938 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1939 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1940 | } |
1941 | ||
7f999aa7 | 1942 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1943 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1944 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1945 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 1946 | { |
b74f3fdd | 1947 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1948 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1949 | } |
1950 | ||
1951 | /* Return 1 if and only if the PWM interface is safe to use */ | |
b74f3fdd | 1952 | static int __devinit it87_check_pwm(struct device *dev) |
1da177e4 | 1953 | { |
b74f3fdd | 1954 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1955 | /* Some BIOSes fail to correctly configure the IT87 fans. All fans off |
1956 | * and polarity set to active low is sign that this is the case so we | |
1957 | * disable pwm control to protect the user. */ | |
b74f3fdd | 1958 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
1959 | if ((tmp & 0x87) == 0) { |
1960 | if (fix_pwm_polarity) { | |
1961 | /* The user asks us to attempt a chip reconfiguration. | |
1962 | * This means switching to active high polarity and | |
1963 | * inverting all fan speed values. */ | |
1964 | int i; | |
1965 | u8 pwm[3]; | |
1966 | ||
1967 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1968 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
1969 | IT87_REG_PWM(i)); |
1970 | ||
1971 | /* If any fan is in automatic pwm mode, the polarity | |
1972 | * might be correct, as suspicious as it seems, so we | |
1973 | * better don't change anything (but still disable the | |
1974 | * PWM interface). */ | |
1975 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { | |
b74f3fdd | 1976 | dev_info(dev, "Reconfiguring PWM to " |
1da177e4 | 1977 | "active high polarity\n"); |
b74f3fdd | 1978 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
1979 | tmp | 0x87); |
1980 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1981 | it87_write_value(data, |
1da177e4 LT |
1982 | IT87_REG_PWM(i), |
1983 | 0x7f & ~pwm[i]); | |
1984 | return 1; | |
1985 | } | |
1986 | ||
b74f3fdd | 1987 | dev_info(dev, "PWM configuration is " |
1da177e4 LT |
1988 | "too broken to be fixed\n"); |
1989 | } | |
1990 | ||
b74f3fdd | 1991 | dev_info(dev, "Detected broken BIOS " |
1da177e4 LT |
1992 | "defaults, disabling PWM interface\n"); |
1993 | return 0; | |
1994 | } else if (fix_pwm_polarity) { | |
b74f3fdd | 1995 | dev_info(dev, "PWM configuration looks " |
1da177e4 LT |
1996 | "sane, won't touch\n"); |
1997 | } | |
1998 | ||
1999 | return 1; | |
2000 | } | |
2001 | ||
2002 | /* Called when we have found a new IT87. */ | |
b74f3fdd | 2003 | static void __devinit it87_init_device(struct platform_device *pdev) |
1da177e4 | 2004 | { |
591ec650 | 2005 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
b74f3fdd | 2006 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 2007 | int tmp, i; |
591ec650 | 2008 | u8 mask; |
1da177e4 | 2009 | |
b99883dc JD |
2010 | /* For each PWM channel: |
2011 | * - If it is in automatic mode, setting to manual mode should set | |
2012 | * the fan to full speed by default. | |
2013 | * - If it is in manual mode, we need a mapping to temperature | |
2014 | * channels to use when later setting to automatic mode later. | |
2015 | * Use a 1:1 mapping by default (we are clueless.) | |
2016 | * In both cases, the value can (and should) be changed by the user | |
6229cdb2 JD |
2017 | * prior to switching to a different mode. |
2018 | * Note that this is no longer needed for the IT8721F and later, as | |
2019 | * these have separate registers for the temperature mapping and the | |
2020 | * manual duty cycle. */ | |
1da177e4 | 2021 | for (i = 0; i < 3; i++) { |
b99883dc JD |
2022 | data->pwm_temp_map[i] = i; |
2023 | data->pwm_duty[i] = 0x7f; /* Full speed */ | |
4f3f51bc | 2024 | data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
1da177e4 LT |
2025 | } |
2026 | ||
c5df9b7a JD |
2027 | /* Some chips seem to have default value 0xff for all limit |
2028 | * registers. For low voltage limits it makes no sense and triggers | |
2029 | * alarms, so change to 0 instead. For high temperature limits, it | |
2030 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
2031 | * but is still confusing, so change to 127 degrees C. */ | |
2032 | for (i = 0; i < 8; i++) { | |
b74f3fdd | 2033 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 2034 | if (tmp == 0xff) |
b74f3fdd | 2035 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
2036 | } |
2037 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 2038 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 2039 | if (tmp == 0xff) |
b74f3fdd | 2040 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
2041 | } |
2042 | ||
a00afb97 JD |
2043 | /* Temperature channels are not forcibly enabled, as they can be |
2044 | * set to two different sensor types and we can't guess which one | |
2045 | * is correct for a given system. These channels can be enabled at | |
2046 | * run-time through the temp{1-3}_type sysfs accessors if needed. */ | |
1da177e4 LT |
2047 | |
2048 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 2049 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
2050 | if ((tmp & 0xff) == 0) { |
2051 | /* Enable all voltage monitors */ | |
b74f3fdd | 2052 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
2053 | } |
2054 | ||
2055 | /* Check if tachometers are reset manually or by some reason */ | |
591ec650 | 2056 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
b74f3fdd | 2057 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
591ec650 | 2058 | if ((data->fan_main_ctrl & mask) == 0) { |
1da177e4 | 2059 | /* Enable all fan tachometers */ |
591ec650 | 2060 | data->fan_main_ctrl |= mask; |
5f2dc798 JD |
2061 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
2062 | data->fan_main_ctrl); | |
1da177e4 | 2063 | } |
9060f8bd | 2064 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 2065 | |
17d648bf | 2066 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 2067 | if (has_16bit_fans(data)) { |
b74f3fdd | 2068 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 2069 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 2070 | dev_dbg(&pdev->dev, |
17d648bf | 2071 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 2072 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
2073 | tmp | 0x07); |
2074 | } | |
816d8c6a AP |
2075 | /* IT8705F only supports three fans. */ |
2076 | if (data->type != it87) { | |
2077 | if (tmp & (1 << 4)) | |
2078 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
2079 | if (tmp & (1 << 5)) | |
2080 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
2081 | } | |
17d648bf JD |
2082 | } |
2083 | ||
591ec650 JD |
2084 | /* Fan input pins may be used for alternative functions */ |
2085 | data->has_fan &= ~sio_data->skip_fan; | |
2086 | ||
1da177e4 | 2087 | /* Start monitoring */ |
b74f3fdd | 2088 | it87_write_value(data, IT87_REG_CONFIG, |
2089 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | |
1da177e4 LT |
2090 | | (update_vbat ? 0x41 : 0x01)); |
2091 | } | |
2092 | ||
b99883dc JD |
2093 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
2094 | { | |
2095 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); | |
6229cdb2 | 2096 | if (data->type == it8721) { |
b99883dc | 2097 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
6229cdb2 JD |
2098 | data->pwm_duty[nr] = it87_read_value(data, |
2099 | IT87_REG_PWM_DUTY(nr)); | |
2100 | } else { | |
2101 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
2102 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; | |
2103 | else /* Manual mode */ | |
2104 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; | |
2105 | } | |
4f3f51bc JD |
2106 | |
2107 | if (has_old_autopwm(data)) { | |
2108 | int i; | |
2109 | ||
2110 | for (i = 0; i < 5 ; i++) | |
2111 | data->auto_temp[nr][i] = it87_read_value(data, | |
2112 | IT87_REG_AUTO_TEMP(nr, i)); | |
2113 | for (i = 0; i < 3 ; i++) | |
2114 | data->auto_pwm[nr][i] = it87_read_value(data, | |
2115 | IT87_REG_AUTO_PWM(nr, i)); | |
2116 | } | |
b99883dc JD |
2117 | } |
2118 | ||
1da177e4 LT |
2119 | static struct it87_data *it87_update_device(struct device *dev) |
2120 | { | |
b74f3fdd | 2121 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
2122 | int i; |
2123 | ||
9a61bf63 | 2124 | mutex_lock(&data->update_lock); |
1da177e4 LT |
2125 | |
2126 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
2127 | || !data->valid) { | |
1da177e4 LT |
2128 | if (update_vbat) { |
2129 | /* Cleared after each update, so reenable. Value | |
5f2dc798 | 2130 | returned by this read will be previous value */ |
b74f3fdd | 2131 | it87_write_value(data, IT87_REG_CONFIG, |
5f2dc798 | 2132 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
1da177e4 LT |
2133 | } |
2134 | for (i = 0; i <= 7; i++) { | |
2135 | data->in[i] = | |
5f2dc798 | 2136 | it87_read_value(data, IT87_REG_VIN(i)); |
1da177e4 | 2137 | data->in_min[i] = |
5f2dc798 | 2138 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
1da177e4 | 2139 | data->in_max[i] = |
5f2dc798 | 2140 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 2141 | } |
3543a53f | 2142 | /* in8 (battery) has no limit registers */ |
5f2dc798 | 2143 | data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 2144 | |
c7f1f716 | 2145 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
2146 | /* Skip disabled fans */ |
2147 | if (!(data->has_fan & (1 << i))) | |
2148 | continue; | |
2149 | ||
1da177e4 | 2150 | data->fan_min[i] = |
5f2dc798 | 2151 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
b74f3fdd | 2152 | data->fan[i] = it87_read_value(data, |
c7f1f716 | 2153 | IT87_REG_FAN[i]); |
17d648bf | 2154 | /* Add high byte if in 16-bit mode */ |
0475169c | 2155 | if (has_16bit_fans(data)) { |
b74f3fdd | 2156 | data->fan[i] |= it87_read_value(data, |
c7f1f716 | 2157 | IT87_REG_FANX[i]) << 8; |
b74f3fdd | 2158 | data->fan_min[i] |= it87_read_value(data, |
c7f1f716 | 2159 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 2160 | } |
1da177e4 LT |
2161 | } |
2162 | for (i = 0; i < 3; i++) { | |
2163 | data->temp[i] = | |
5f2dc798 | 2164 | it87_read_value(data, IT87_REG_TEMP(i)); |
1da177e4 | 2165 | data->temp_high[i] = |
5f2dc798 | 2166 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
1da177e4 | 2167 | data->temp_low[i] = |
5f2dc798 | 2168 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
1da177e4 LT |
2169 | } |
2170 | ||
17d648bf | 2171 | /* Newer chips don't have clock dividers */ |
0475169c | 2172 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 2173 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
2174 | data->fan_div[0] = i & 0x07; |
2175 | data->fan_div[1] = (i >> 3) & 0x07; | |
2176 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
2177 | } | |
1da177e4 LT |
2178 | |
2179 | data->alarms = | |
b74f3fdd | 2180 | it87_read_value(data, IT87_REG_ALARM1) | |
2181 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
2182 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
d9b327c3 | 2183 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
b99883dc | 2184 | |
b74f3fdd | 2185 | data->fan_main_ctrl = it87_read_value(data, |
2186 | IT87_REG_FAN_MAIN_CTRL); | |
2187 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
b99883dc JD |
2188 | for (i = 0; i < 3; i++) |
2189 | it87_update_pwm_ctrl(data, i); | |
b74f3fdd | 2190 | |
2191 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
0475169c | 2192 | /* The 8705 does not have VID capability. |
44c1bcd4 | 2193 | The 8718 and later don't use IT87_REG_VID for the |
b4da93e4 | 2194 | same purpose. */ |
17d648bf | 2195 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 2196 | data->vid = it87_read_value(data, IT87_REG_VID); |
17d648bf JD |
2197 | /* The older IT8712F revisions had only 5 VID pins, |
2198 | but we assume it is always safe to read 6 bits. */ | |
2199 | data->vid &= 0x3f; | |
1da177e4 LT |
2200 | } |
2201 | data->last_updated = jiffies; | |
2202 | data->valid = 1; | |
2203 | } | |
2204 | ||
9a61bf63 | 2205 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
2206 | |
2207 | return data; | |
2208 | } | |
2209 | ||
b74f3fdd | 2210 | static int __init it87_device_add(unsigned short address, |
2211 | const struct it87_sio_data *sio_data) | |
2212 | { | |
2213 | struct resource res = { | |
87b4b663 BH |
2214 | .start = address + IT87_EC_OFFSET, |
2215 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 2216 | .name = DRVNAME, |
2217 | .flags = IORESOURCE_IO, | |
2218 | }; | |
2219 | int err; | |
2220 | ||
b9acb64a JD |
2221 | err = acpi_check_resource_conflict(&res); |
2222 | if (err) | |
2223 | goto exit; | |
2224 | ||
b74f3fdd | 2225 | pdev = platform_device_alloc(DRVNAME, address); |
2226 | if (!pdev) { | |
2227 | err = -ENOMEM; | |
a8ca1037 | 2228 | pr_err("Device allocation failed\n"); |
b74f3fdd | 2229 | goto exit; |
2230 | } | |
2231 | ||
2232 | err = platform_device_add_resources(pdev, &res, 1); | |
2233 | if (err) { | |
a8ca1037 | 2234 | pr_err("Device resource addition failed (%d)\n", err); |
b74f3fdd | 2235 | goto exit_device_put; |
2236 | } | |
2237 | ||
2238 | err = platform_device_add_data(pdev, sio_data, | |
2239 | sizeof(struct it87_sio_data)); | |
2240 | if (err) { | |
a8ca1037 | 2241 | pr_err("Platform data allocation failed\n"); |
b74f3fdd | 2242 | goto exit_device_put; |
2243 | } | |
2244 | ||
2245 | err = platform_device_add(pdev); | |
2246 | if (err) { | |
a8ca1037 | 2247 | pr_err("Device addition failed (%d)\n", err); |
b74f3fdd | 2248 | goto exit_device_put; |
2249 | } | |
2250 | ||
2251 | return 0; | |
2252 | ||
2253 | exit_device_put: | |
2254 | platform_device_put(pdev); | |
2255 | exit: | |
2256 | return err; | |
2257 | } | |
2258 | ||
1da177e4 LT |
2259 | static int __init sm_it87_init(void) |
2260 | { | |
b74f3fdd | 2261 | int err; |
5f2dc798 | 2262 | unsigned short isa_address = 0; |
b74f3fdd | 2263 | struct it87_sio_data sio_data; |
2264 | ||
98dd22c3 | 2265 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
b74f3fdd | 2266 | err = it87_find(&isa_address, &sio_data); |
2267 | if (err) | |
2268 | return err; | |
2269 | err = platform_driver_register(&it87_driver); | |
2270 | if (err) | |
2271 | return err; | |
fde09509 | 2272 | |
b74f3fdd | 2273 | err = it87_device_add(isa_address, &sio_data); |
5f2dc798 | 2274 | if (err) { |
b74f3fdd | 2275 | platform_driver_unregister(&it87_driver); |
2276 | return err; | |
2277 | } | |
2278 | ||
2279 | return 0; | |
1da177e4 LT |
2280 | } |
2281 | ||
2282 | static void __exit sm_it87_exit(void) | |
2283 | { | |
b74f3fdd | 2284 | platform_device_unregister(pdev); |
2285 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
2286 | } |
2287 | ||
2288 | ||
f1d8e332 | 2289 | MODULE_AUTHOR("Chris Gauthron, " |
b19367c6 | 2290 | "Jean Delvare <khali@linux-fr.org>"); |
44c1bcd4 | 2291 | MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); |
1da177e4 LT |
2292 | module_param(update_vbat, bool, 0); |
2293 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
2294 | module_param(fix_pwm_polarity, bool, 0); | |
5f2dc798 JD |
2295 | MODULE_PARM_DESC(fix_pwm_polarity, |
2296 | "Force PWM polarity to active high (DANGEROUS)"); | |
1da177e4 LT |
2297 | MODULE_LICENSE("GPL"); |
2298 | ||
2299 | module_init(sm_it87_init); | |
2300 | module_exit(sm_it87_exit); |