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