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