Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
5f2dc798 JD |
2 | * it87.c - Part of lm_sensors, Linux kernel modules for hardware |
3 | * monitoring. | |
4 | * | |
5 | * The IT8705F is an LPC-based Super I/O part that contains UARTs, a | |
6 | * parallel port, an IR port, a MIDI port, a floppy controller, etc., in | |
7 | * addition to an Environment Controller (Enhanced Hardware Monitor and | |
8 | * Fan Controller) | |
9 | * | |
10 | * This driver supports only the Environment Controller in the IT8705F and | |
11 | * similar parts. The other devices are supported by different drivers. | |
12 | * | |
13 | * Supports: IT8705F Super I/O chip w/LPC interface | |
14 | * IT8712F Super I/O chip w/LPC interface | |
15 | * IT8716F Super I/O chip w/LPC interface | |
16 | * IT8718F Super I/O chip w/LPC interface | |
17 | * IT8720F Super I/O chip w/LPC interface | |
18 | * IT8726F Super I/O chip w/LPC interface | |
19 | * Sis950 A clone of the IT8705F | |
20 | * | |
21 | * Copyright (C) 2001 Chris Gauthron | |
22 | * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> | |
23 | * | |
24 | * This program is free software; you can redistribute it and/or modify | |
25 | * it under the terms of the GNU General Public License as published by | |
26 | * the Free Software Foundation; either version 2 of the License, or | |
27 | * (at your option) any later version. | |
28 | * | |
29 | * This program is distributed in the hope that it will be useful, | |
30 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
31 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
32 | * GNU General Public License for more details. | |
33 | * | |
34 | * You should have received a copy of the GNU General Public License | |
35 | * along with this program; if not, write to the Free Software | |
36 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
37 | */ | |
1da177e4 | 38 | |
1da177e4 LT |
39 | #include <linux/module.h> |
40 | #include <linux/init.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/jiffies.h> | |
b74f3fdd | 43 | #include <linux/platform_device.h> |
943b0830 | 44 | #include <linux/hwmon.h> |
303760b4 JD |
45 | #include <linux/hwmon-sysfs.h> |
46 | #include <linux/hwmon-vid.h> | |
943b0830 | 47 | #include <linux/err.h> |
9a61bf63 | 48 | #include <linux/mutex.h> |
87808be4 | 49 | #include <linux/sysfs.h> |
98dd22c3 JD |
50 | #include <linux/string.h> |
51 | #include <linux/dmi.h> | |
b9acb64a | 52 | #include <linux/acpi.h> |
6055fae8 | 53 | #include <linux/io.h> |
1da177e4 | 54 | |
b74f3fdd | 55 | #define DRVNAME "it87" |
1da177e4 | 56 | |
b4da93e4 | 57 | enum chips { it87, it8712, it8716, it8718, it8720 }; |
1da177e4 | 58 | |
67b671bc JD |
59 | static unsigned short force_id; |
60 | module_param(force_id, ushort, 0); | |
61 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
62 | ||
b74f3fdd | 63 | static struct platform_device *pdev; |
64 | ||
1da177e4 LT |
65 | #define REG 0x2e /* The register to read/write */ |
66 | #define DEV 0x07 /* Register: Logical device select */ | |
67 | #define VAL 0x2f /* The value to read/write */ | |
68 | #define PME 0x04 /* The device with the fan registers in it */ | |
b4da93e4 JMS |
69 | |
70 | /* The device with the IT8718F/IT8720F VID value in it */ | |
71 | #define GPIO 0x07 | |
72 | ||
1da177e4 LT |
73 | #define DEVID 0x20 /* Register: Device ID */ |
74 | #define DEVREV 0x22 /* Register: Device Revision */ | |
75 | ||
76 | static inline int | |
77 | superio_inb(int reg) | |
78 | { | |
79 | outb(reg, REG); | |
80 | return inb(VAL); | |
81 | } | |
82 | ||
83 | static int superio_inw(int reg) | |
84 | { | |
85 | int val; | |
86 | outb(reg++, REG); | |
87 | val = inb(VAL) << 8; | |
88 | outb(reg, REG); | |
89 | val |= inb(VAL); | |
90 | return val; | |
91 | } | |
92 | ||
93 | static inline void | |
87673dd7 | 94 | superio_select(int ldn) |
1da177e4 LT |
95 | { |
96 | outb(DEV, REG); | |
87673dd7 | 97 | outb(ldn, VAL); |
1da177e4 LT |
98 | } |
99 | ||
100 | static inline void | |
101 | superio_enter(void) | |
102 | { | |
103 | outb(0x87, REG); | |
104 | outb(0x01, REG); | |
105 | outb(0x55, REG); | |
106 | outb(0x55, REG); | |
107 | } | |
108 | ||
109 | static inline void | |
110 | superio_exit(void) | |
111 | { | |
112 | outb(0x02, REG); | |
113 | outb(0x02, VAL); | |
114 | } | |
115 | ||
87673dd7 | 116 | /* Logical device 4 registers */ |
1da177e4 LT |
117 | #define IT8712F_DEVID 0x8712 |
118 | #define IT8705F_DEVID 0x8705 | |
17d648bf | 119 | #define IT8716F_DEVID 0x8716 |
87673dd7 | 120 | #define IT8718F_DEVID 0x8718 |
b4da93e4 | 121 | #define IT8720F_DEVID 0x8720 |
08a8f6e9 | 122 | #define IT8726F_DEVID 0x8726 |
1da177e4 LT |
123 | #define IT87_ACT_REG 0x30 |
124 | #define IT87_BASE_REG 0x60 | |
125 | ||
87673dd7 | 126 | /* Logical device 7 registers (IT8712F and later) */ |
895ff267 | 127 | #define IT87_SIO_GPIO3_REG 0x27 |
591ec650 | 128 | #define IT87_SIO_GPIO5_REG 0x29 |
87673dd7 JD |
129 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
130 | #define IT87_SIO_VID_REG 0xfc /* VID value */ | |
d9b327c3 | 131 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
87673dd7 | 132 | |
1da177e4 LT |
133 | /* Update battery voltage after every reading if true */ |
134 | static int update_vbat; | |
135 | ||
136 | /* Not all BIOSes properly configure the PWM registers */ | |
137 | static int fix_pwm_polarity; | |
138 | ||
1da177e4 LT |
139 | /* Many IT87 constants specified below */ |
140 | ||
141 | /* Length of ISA address segment */ | |
142 | #define IT87_EXTENT 8 | |
143 | ||
87b4b663 BH |
144 | /* Length of ISA address segment for Environmental Controller */ |
145 | #define IT87_EC_EXTENT 2 | |
146 | ||
147 | /* Offset of EC registers from ISA base address */ | |
148 | #define IT87_EC_OFFSET 5 | |
149 | ||
150 | /* Where are the ISA address/data registers relative to the EC base address */ | |
151 | #define IT87_ADDR_REG_OFFSET 0 | |
152 | #define IT87_DATA_REG_OFFSET 1 | |
1da177e4 LT |
153 | |
154 | /*----- The IT87 registers -----*/ | |
155 | ||
156 | #define IT87_REG_CONFIG 0x00 | |
157 | ||
158 | #define IT87_REG_ALARM1 0x01 | |
159 | #define IT87_REG_ALARM2 0x02 | |
160 | #define IT87_REG_ALARM3 0x03 | |
161 | ||
b4da93e4 JMS |
162 | /* The IT8718F and IT8720F have the VID value in a different register, in |
163 | Super-I/O configuration space. */ | |
1da177e4 | 164 | #define IT87_REG_VID 0x0a |
0475169c AP |
165 | /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
166 | for fan divisors. Later IT8712F revisions must use 16-bit tachometer | |
167 | mode. */ | |
1da177e4 | 168 | #define IT87_REG_FAN_DIV 0x0b |
17d648bf | 169 | #define IT87_REG_FAN_16BIT 0x0c |
1da177e4 LT |
170 | |
171 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ | |
172 | ||
c7f1f716 JD |
173 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
174 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; | |
175 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; | |
176 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; | |
1da177e4 LT |
177 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
178 | #define IT87_REG_FAN_CTL 0x14 | |
179 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
180 | ||
181 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
182 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
183 | ||
184 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
185 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
186 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
187 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
188 | ||
1da177e4 LT |
189 | #define IT87_REG_VIN_ENABLE 0x50 |
190 | #define IT87_REG_TEMP_ENABLE 0x51 | |
d9b327c3 | 191 | #define IT87_REG_BEEP_ENABLE 0x5c |
1da177e4 LT |
192 | |
193 | #define IT87_REG_CHIPID 0x58 | |
194 | ||
195 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255)) | |
196 | #define IN_FROM_REG(val) ((val) * 16) | |
197 | ||
198 | static inline u8 FAN_TO_REG(long rpm, int div) | |
199 | { | |
200 | if (rpm == 0) | |
201 | return 255; | |
202 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
203 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
204 | 254); | |
205 | } | |
206 | ||
17d648bf JD |
207 | static inline u16 FAN16_TO_REG(long rpm) |
208 | { | |
209 | if (rpm == 0) | |
210 | return 0xffff; | |
211 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
212 | } | |
213 | ||
1da177e4 | 214 | #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div))) |
17d648bf JD |
215 | /* The divider is fixed to 2 in 16-bit mode */ |
216 | #define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2)) | |
1da177e4 LT |
217 | |
218 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\ | |
219 | ((val)+500)/1000),-128,127)) | |
e267d250 | 220 | #define TEMP_FROM_REG(val) ((val) * 1000) |
1da177e4 | 221 | |
1da177e4 LT |
222 | #define PWM_TO_REG(val) ((val) >> 1) |
223 | #define PWM_FROM_REG(val) (((val)&0x7f) << 1) | |
224 | ||
225 | static int DIV_TO_REG(int val) | |
226 | { | |
227 | int answer = 0; | |
b9e349f7 | 228 | while (answer < 7 && (val >>= 1)) |
1da177e4 LT |
229 | answer++; |
230 | return answer; | |
231 | } | |
232 | #define DIV_FROM_REG(val) (1 << (val)) | |
233 | ||
f8d0c19a JD |
234 | static const unsigned int pwm_freq[8] = { |
235 | 48000000 / 128, | |
236 | 24000000 / 128, | |
237 | 12000000 / 128, | |
238 | 8000000 / 128, | |
239 | 6000000 / 128, | |
240 | 3000000 / 128, | |
241 | 1500000 / 128, | |
242 | 750000 / 128, | |
243 | }; | |
244 | ||
1da177e4 | 245 | |
b74f3fdd | 246 | struct it87_sio_data { |
247 | enum chips type; | |
248 | /* Values read from Super-I/O config space */ | |
0475169c | 249 | u8 revision; |
b74f3fdd | 250 | u8 vid_value; |
d9b327c3 | 251 | u8 beep_pin; |
591ec650 | 252 | /* Features skipped based on config or DMI */ |
895ff267 | 253 | u8 skip_vid; |
591ec650 | 254 | u8 skip_fan; |
98dd22c3 | 255 | u8 skip_pwm; |
b74f3fdd | 256 | }; |
257 | ||
ed6bafbf JD |
258 | /* For each registered chip, we need to keep some data in memory. |
259 | The structure is dynamically allocated. */ | |
1da177e4 | 260 | struct it87_data { |
1beeffe4 | 261 | struct device *hwmon_dev; |
1da177e4 | 262 | enum chips type; |
0475169c | 263 | u8 revision; |
1da177e4 | 264 | |
b74f3fdd | 265 | unsigned short addr; |
266 | const char *name; | |
9a61bf63 | 267 | struct mutex update_lock; |
1da177e4 LT |
268 | char valid; /* !=0 if following fields are valid */ |
269 | unsigned long last_updated; /* In jiffies */ | |
270 | ||
271 | u8 in[9]; /* Register value */ | |
3543a53f JD |
272 | u8 in_max[8]; /* Register value */ |
273 | u8 in_min[8]; /* Register value */ | |
9060f8bd | 274 | u8 has_fan; /* Bitfield, fans enabled */ |
c7f1f716 JD |
275 | u16 fan[5]; /* Register values, possibly combined */ |
276 | u16 fan_min[5]; /* Register values, possibly combined */ | |
e267d250 JD |
277 | s8 temp[3]; /* Register value */ |
278 | s8 temp_high[3]; /* Register value */ | |
279 | s8 temp_low[3]; /* Register value */ | |
1da177e4 LT |
280 | u8 sensor; /* Register value */ |
281 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
282 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 283 | u8 vrm; |
1da177e4 | 284 | u32 alarms; /* Register encoding, combined */ |
d9b327c3 | 285 | u8 beeps; /* Register encoding */ |
1da177e4 | 286 | u8 fan_main_ctrl; /* Register value */ |
f8d0c19a | 287 | u8 fan_ctl; /* Register value */ |
b99883dc JD |
288 | |
289 | /* The following 3 arrays correspond to the same registers. The | |
290 | * meaning of bits 6-0 depends on the value of bit 7, and we want | |
291 | * to preserve settings on mode changes, so we have to track all | |
292 | * values separately. */ | |
293 | u8 pwm_ctrl[3]; /* Register value */ | |
294 | u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */ | |
295 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ | |
1da177e4 LT |
296 | }; |
297 | ||
0475169c AP |
298 | static inline int has_16bit_fans(const struct it87_data *data) |
299 | { | |
816d8c6a | 300 | /* IT8705F Datasheet 0.4.1, 3h == Version G. |
859b9ef3 | 301 | IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
816d8c6a AP |
302 | These are the first revisions with 16bit tachometer support. */ |
303 | return (data->type == it87 && data->revision >= 0x03) | |
859b9ef3 | 304 | || (data->type == it8712 && data->revision >= 0x08) |
0475169c | 305 | || data->type == it8716 |
b4da93e4 JMS |
306 | || data->type == it8718 |
307 | || data->type == it8720; | |
0475169c | 308 | } |
1da177e4 | 309 | |
b74f3fdd | 310 | static int it87_probe(struct platform_device *pdev); |
d0546128 | 311 | static int __devexit it87_remove(struct platform_device *pdev); |
1da177e4 | 312 | |
b74f3fdd | 313 | static int it87_read_value(struct it87_data *data, u8 reg); |
314 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 315 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 316 | static int it87_check_pwm(struct device *dev); |
317 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
318 | |
319 | ||
b74f3fdd | 320 | static struct platform_driver it87_driver = { |
cdaf7934 | 321 | .driver = { |
87218842 | 322 | .owner = THIS_MODULE, |
b74f3fdd | 323 | .name = DRVNAME, |
cdaf7934 | 324 | }, |
b74f3fdd | 325 | .probe = it87_probe, |
326 | .remove = __devexit_p(it87_remove), | |
fde09509 JD |
327 | }; |
328 | ||
20ad93d4 JD |
329 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
330 | char *buf) | |
1da177e4 | 331 | { |
20ad93d4 JD |
332 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
333 | int nr = sensor_attr->index; | |
334 | ||
1da177e4 LT |
335 | struct it87_data *data = it87_update_device(dev); |
336 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); | |
337 | } | |
338 | ||
20ad93d4 JD |
339 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
340 | char *buf) | |
1da177e4 | 341 | { |
20ad93d4 JD |
342 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
343 | int nr = sensor_attr->index; | |
344 | ||
1da177e4 LT |
345 | struct it87_data *data = it87_update_device(dev); |
346 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); | |
347 | } | |
348 | ||
20ad93d4 JD |
349 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
350 | char *buf) | |
1da177e4 | 351 | { |
20ad93d4 JD |
352 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
353 | int nr = sensor_attr->index; | |
354 | ||
1da177e4 LT |
355 | struct it87_data *data = it87_update_device(dev); |
356 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); | |
357 | } | |
358 | ||
20ad93d4 JD |
359 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
360 | const char *buf, size_t count) | |
1da177e4 | 361 | { |
20ad93d4 JD |
362 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
363 | int nr = sensor_attr->index; | |
364 | ||
b74f3fdd | 365 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
366 | unsigned long val; |
367 | ||
368 | if (strict_strtoul(buf, 10, &val) < 0) | |
369 | return -EINVAL; | |
1da177e4 | 370 | |
9a61bf63 | 371 | mutex_lock(&data->update_lock); |
1da177e4 | 372 | data->in_min[nr] = IN_TO_REG(val); |
b74f3fdd | 373 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
1da177e4 | 374 | data->in_min[nr]); |
9a61bf63 | 375 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
376 | return count; |
377 | } | |
20ad93d4 JD |
378 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
379 | const char *buf, size_t count) | |
1da177e4 | 380 | { |
20ad93d4 JD |
381 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
382 | int nr = sensor_attr->index; | |
383 | ||
b74f3fdd | 384 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
385 | unsigned long val; |
386 | ||
387 | if (strict_strtoul(buf, 10, &val) < 0) | |
388 | return -EINVAL; | |
1da177e4 | 389 | |
9a61bf63 | 390 | mutex_lock(&data->update_lock); |
1da177e4 | 391 | data->in_max[nr] = IN_TO_REG(val); |
b74f3fdd | 392 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
1da177e4 | 393 | data->in_max[nr]); |
9a61bf63 | 394 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
395 | return count; |
396 | } | |
397 | ||
398 | #define show_in_offset(offset) \ | |
20ad93d4 JD |
399 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
400 | show_in, NULL, offset); | |
1da177e4 LT |
401 | |
402 | #define limit_in_offset(offset) \ | |
20ad93d4 JD |
403 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
404 | show_in_min, set_in_min, offset); \ | |
405 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
406 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
407 | |
408 | show_in_offset(0); | |
409 | limit_in_offset(0); | |
410 | show_in_offset(1); | |
411 | limit_in_offset(1); | |
412 | show_in_offset(2); | |
413 | limit_in_offset(2); | |
414 | show_in_offset(3); | |
415 | limit_in_offset(3); | |
416 | show_in_offset(4); | |
417 | limit_in_offset(4); | |
418 | show_in_offset(5); | |
419 | limit_in_offset(5); | |
420 | show_in_offset(6); | |
421 | limit_in_offset(6); | |
422 | show_in_offset(7); | |
423 | limit_in_offset(7); | |
424 | show_in_offset(8); | |
425 | ||
426 | /* 3 temperatures */ | |
20ad93d4 JD |
427 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
428 | char *buf) | |
1da177e4 | 429 | { |
20ad93d4 JD |
430 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
431 | int nr = sensor_attr->index; | |
432 | ||
1da177e4 LT |
433 | struct it87_data *data = it87_update_device(dev); |
434 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
435 | } | |
20ad93d4 JD |
436 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
437 | char *buf) | |
1da177e4 | 438 | { |
20ad93d4 JD |
439 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
440 | int nr = sensor_attr->index; | |
441 | ||
1da177e4 LT |
442 | struct it87_data *data = it87_update_device(dev); |
443 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
444 | } | |
20ad93d4 JD |
445 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
446 | char *buf) | |
1da177e4 | 447 | { |
20ad93d4 JD |
448 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
449 | int nr = sensor_attr->index; | |
450 | ||
1da177e4 LT |
451 | struct it87_data *data = it87_update_device(dev); |
452 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); | |
453 | } | |
20ad93d4 JD |
454 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
455 | const char *buf, size_t count) | |
1da177e4 | 456 | { |
20ad93d4 JD |
457 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
458 | int nr = sensor_attr->index; | |
459 | ||
b74f3fdd | 460 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
461 | long val; |
462 | ||
463 | if (strict_strtol(buf, 10, &val) < 0) | |
464 | return -EINVAL; | |
1da177e4 | 465 | |
9a61bf63 | 466 | mutex_lock(&data->update_lock); |
1da177e4 | 467 | data->temp_high[nr] = TEMP_TO_REG(val); |
b74f3fdd | 468 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
9a61bf63 | 469 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
470 | return count; |
471 | } | |
20ad93d4 JD |
472 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
473 | const char *buf, size_t count) | |
1da177e4 | 474 | { |
20ad93d4 JD |
475 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
476 | int nr = sensor_attr->index; | |
477 | ||
b74f3fdd | 478 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
479 | long val; |
480 | ||
481 | if (strict_strtol(buf, 10, &val) < 0) | |
482 | return -EINVAL; | |
1da177e4 | 483 | |
9a61bf63 | 484 | mutex_lock(&data->update_lock); |
1da177e4 | 485 | data->temp_low[nr] = TEMP_TO_REG(val); |
b74f3fdd | 486 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
9a61bf63 | 487 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
488 | return count; |
489 | } | |
490 | #define show_temp_offset(offset) \ | |
20ad93d4 JD |
491 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
492 | show_temp, NULL, offset - 1); \ | |
493 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
494 | show_temp_max, set_temp_max, offset - 1); \ | |
495 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
496 | show_temp_min, set_temp_min, offset - 1); | |
1da177e4 LT |
497 | |
498 | show_temp_offset(1); | |
499 | show_temp_offset(2); | |
500 | show_temp_offset(3); | |
501 | ||
20ad93d4 JD |
502 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
503 | char *buf) | |
1da177e4 | 504 | { |
20ad93d4 JD |
505 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
506 | int nr = sensor_attr->index; | |
507 | ||
1da177e4 | 508 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
509 | u8 reg = data->sensor; /* In case the value is updated while |
510 | we use it */ | |
511 | ||
1da177e4 LT |
512 | if (reg & (1 << nr)) |
513 | return sprintf(buf, "3\n"); /* thermal diode */ | |
514 | if (reg & (8 << nr)) | |
4ed10779 | 515 | return sprintf(buf, "4\n"); /* thermistor */ |
1da177e4 LT |
516 | return sprintf(buf, "0\n"); /* disabled */ |
517 | } | |
20ad93d4 JD |
518 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
519 | const char *buf, size_t count) | |
1da177e4 | 520 | { |
20ad93d4 JD |
521 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
522 | int nr = sensor_attr->index; | |
523 | ||
b74f3fdd | 524 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
525 | long val; |
526 | ||
527 | if (strict_strtol(buf, 10, &val) < 0) | |
528 | return -EINVAL; | |
1da177e4 | 529 | |
9a61bf63 | 530 | mutex_lock(&data->update_lock); |
1da177e4 LT |
531 | |
532 | data->sensor &= ~(1 << nr); | |
533 | data->sensor &= ~(8 << nr); | |
4ed10779 JD |
534 | if (val == 2) { /* backwards compatibility */ |
535 | dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " | |
536 | "instead\n"); | |
537 | val = 4; | |
538 | } | |
539 | /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ | |
1da177e4 | 540 | if (val == 3) |
5f2dc798 | 541 | data->sensor |= 1 << nr; |
4ed10779 | 542 | else if (val == 4) |
5f2dc798 | 543 | data->sensor |= 8 << nr; |
1da177e4 | 544 | else if (val != 0) { |
9a61bf63 | 545 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
546 | return -EINVAL; |
547 | } | |
b74f3fdd | 548 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
9a61bf63 | 549 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
550 | return count; |
551 | } | |
552 | #define show_sensor_offset(offset) \ | |
20ad93d4 JD |
553 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
554 | show_sensor, set_sensor, offset - 1); | |
1da177e4 LT |
555 | |
556 | show_sensor_offset(1); | |
557 | show_sensor_offset(2); | |
558 | show_sensor_offset(3); | |
559 | ||
560 | /* 3 Fans */ | |
b99883dc JD |
561 | |
562 | static int pwm_mode(const struct it87_data *data, int nr) | |
563 | { | |
564 | int ctrl = data->fan_main_ctrl & (1 << nr); | |
565 | ||
566 | if (ctrl == 0) /* Full speed */ | |
567 | return 0; | |
568 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
569 | return 2; | |
570 | else /* Manual mode */ | |
571 | return 1; | |
572 | } | |
573 | ||
20ad93d4 JD |
574 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
575 | char *buf) | |
1da177e4 | 576 | { |
20ad93d4 JD |
577 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
578 | int nr = sensor_attr->index; | |
579 | ||
1da177e4 | 580 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 | 581 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
1da177e4 LT |
582 | DIV_FROM_REG(data->fan_div[nr]))); |
583 | } | |
20ad93d4 JD |
584 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
585 | char *buf) | |
1da177e4 | 586 | { |
20ad93d4 JD |
587 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
588 | int nr = sensor_attr->index; | |
589 | ||
1da177e4 | 590 | struct it87_data *data = it87_update_device(dev); |
5f2dc798 JD |
591 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
592 | DIV_FROM_REG(data->fan_div[nr]))); | |
1da177e4 | 593 | } |
20ad93d4 JD |
594 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
595 | char *buf) | |
1da177e4 | 596 | { |
20ad93d4 JD |
597 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
598 | int nr = sensor_attr->index; | |
599 | ||
1da177e4 LT |
600 | struct it87_data *data = it87_update_device(dev); |
601 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
602 | } | |
5f2dc798 JD |
603 | static ssize_t show_pwm_enable(struct device *dev, |
604 | struct device_attribute *attr, char *buf) | |
1da177e4 | 605 | { |
20ad93d4 JD |
606 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
607 | int nr = sensor_attr->index; | |
608 | ||
1da177e4 | 609 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 610 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
1da177e4 | 611 | } |
20ad93d4 JD |
612 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
613 | char *buf) | |
1da177e4 | 614 | { |
20ad93d4 JD |
615 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
616 | int nr = sensor_attr->index; | |
617 | ||
1da177e4 | 618 | struct it87_data *data = it87_update_device(dev); |
b99883dc | 619 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr])); |
1da177e4 | 620 | } |
f8d0c19a JD |
621 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
622 | char *buf) | |
623 | { | |
624 | struct it87_data *data = it87_update_device(dev); | |
625 | int index = (data->fan_ctl >> 4) & 0x07; | |
626 | ||
627 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
628 | } | |
20ad93d4 JD |
629 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
630 | const char *buf, size_t count) | |
1da177e4 | 631 | { |
20ad93d4 JD |
632 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
633 | int nr = sensor_attr->index; | |
634 | ||
b74f3fdd | 635 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 636 | long val; |
7f999aa7 | 637 | u8 reg; |
1da177e4 | 638 | |
f5f64501 JD |
639 | if (strict_strtol(buf, 10, &val) < 0) |
640 | return -EINVAL; | |
641 | ||
9a61bf63 | 642 | mutex_lock(&data->update_lock); |
b74f3fdd | 643 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
07eab46d | 644 | switch (nr) { |
5f2dc798 JD |
645 | case 0: |
646 | data->fan_div[nr] = reg & 0x07; | |
647 | break; | |
648 | case 1: | |
649 | data->fan_div[nr] = (reg >> 3) & 0x07; | |
650 | break; | |
651 | case 2: | |
652 | data->fan_div[nr] = (reg & 0x40) ? 3 : 1; | |
653 | break; | |
07eab46d JD |
654 | } |
655 | ||
1da177e4 | 656 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
c7f1f716 | 657 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
9a61bf63 | 658 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
659 | return count; |
660 | } | |
20ad93d4 JD |
661 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
662 | const char *buf, size_t count) | |
1da177e4 | 663 | { |
20ad93d4 JD |
664 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
665 | int nr = sensor_attr->index; | |
666 | ||
b74f3fdd | 667 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 668 | unsigned long val; |
8ab4ec3e | 669 | int min; |
1da177e4 LT |
670 | u8 old; |
671 | ||
f5f64501 JD |
672 | if (strict_strtoul(buf, 10, &val) < 0) |
673 | return -EINVAL; | |
674 | ||
9a61bf63 | 675 | mutex_lock(&data->update_lock); |
b74f3fdd | 676 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 677 | |
8ab4ec3e JD |
678 | /* Save fan min limit */ |
679 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
1da177e4 LT |
680 | |
681 | switch (nr) { | |
682 | case 0: | |
683 | case 1: | |
684 | data->fan_div[nr] = DIV_TO_REG(val); | |
685 | break; | |
686 | case 2: | |
687 | if (val < 8) | |
688 | data->fan_div[nr] = 1; | |
689 | else | |
690 | data->fan_div[nr] = 3; | |
691 | } | |
692 | val = old & 0x80; | |
693 | val |= (data->fan_div[0] & 0x07); | |
694 | val |= (data->fan_div[1] & 0x07) << 3; | |
695 | if (data->fan_div[2] == 3) | |
696 | val |= 0x1 << 6; | |
b74f3fdd | 697 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 698 | |
8ab4ec3e JD |
699 | /* Restore fan min limit */ |
700 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
c7f1f716 | 701 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
8ab4ec3e | 702 | |
9a61bf63 | 703 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
704 | return count; |
705 | } | |
20ad93d4 JD |
706 | static ssize_t set_pwm_enable(struct device *dev, |
707 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 708 | { |
20ad93d4 JD |
709 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
710 | int nr = sensor_attr->index; | |
711 | ||
b74f3fdd | 712 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 713 | long val; |
1da177e4 | 714 | |
f5f64501 | 715 | if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
b99883dc JD |
716 | return -EINVAL; |
717 | ||
9a61bf63 | 718 | mutex_lock(&data->update_lock); |
1da177e4 LT |
719 | |
720 | if (val == 0) { | |
721 | int tmp; | |
722 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 723 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
724 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
725 | /* set on/off mode */ |
726 | data->fan_main_ctrl &= ~(1 << nr); | |
5f2dc798 JD |
727 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
728 | data->fan_main_ctrl); | |
b99883dc JD |
729 | } else { |
730 | if (val == 1) /* Manual mode */ | |
731 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
732 | else /* Automatic mode */ | |
733 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
734 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
1da177e4 LT |
735 | /* set SmartGuardian mode */ |
736 | data->fan_main_ctrl |= (1 << nr); | |
5f2dc798 JD |
737 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
738 | data->fan_main_ctrl); | |
1da177e4 LT |
739 | } |
740 | ||
9a61bf63 | 741 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
742 | return count; |
743 | } | |
20ad93d4 JD |
744 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
745 | const char *buf, size_t count) | |
1da177e4 | 746 | { |
20ad93d4 JD |
747 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
748 | int nr = sensor_attr->index; | |
749 | ||
b74f3fdd | 750 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 751 | long val; |
1da177e4 | 752 | |
f5f64501 | 753 | if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
1da177e4 LT |
754 | return -EINVAL; |
755 | ||
9a61bf63 | 756 | mutex_lock(&data->update_lock); |
b99883dc JD |
757 | data->pwm_duty[nr] = PWM_TO_REG(val); |
758 | /* If we are in manual mode, write the duty cycle immediately; | |
759 | * otherwise, just store it for later use. */ | |
760 | if (!(data->pwm_ctrl[nr] & 0x80)) { | |
761 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; | |
762 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
763 | } | |
9a61bf63 | 764 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
765 | return count; |
766 | } | |
f8d0c19a JD |
767 | static ssize_t set_pwm_freq(struct device *dev, |
768 | struct device_attribute *attr, const char *buf, size_t count) | |
769 | { | |
b74f3fdd | 770 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 | 771 | unsigned long val; |
f8d0c19a JD |
772 | int i; |
773 | ||
f5f64501 JD |
774 | if (strict_strtoul(buf, 10, &val) < 0) |
775 | return -EINVAL; | |
776 | ||
f8d0c19a JD |
777 | /* Search for the nearest available frequency */ |
778 | for (i = 0; i < 7; i++) { | |
779 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
780 | break; | |
781 | } | |
782 | ||
783 | mutex_lock(&data->update_lock); | |
b74f3fdd | 784 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 785 | data->fan_ctl |= i << 4; |
b74f3fdd | 786 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
787 | mutex_unlock(&data->update_lock); |
788 | ||
789 | return count; | |
790 | } | |
94ac7ee6 JD |
791 | static ssize_t show_pwm_temp_map(struct device *dev, |
792 | struct device_attribute *attr, char *buf) | |
793 | { | |
794 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
795 | int nr = sensor_attr->index; | |
796 | ||
797 | struct it87_data *data = it87_update_device(dev); | |
798 | int map; | |
799 | ||
800 | if (data->pwm_temp_map[nr] < 3) | |
801 | map = 1 << data->pwm_temp_map[nr]; | |
802 | else | |
803 | map = 0; /* Should never happen */ | |
804 | return sprintf(buf, "%d\n", map); | |
805 | } | |
806 | static ssize_t set_pwm_temp_map(struct device *dev, | |
807 | struct device_attribute *attr, const char *buf, size_t count) | |
808 | { | |
809 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
810 | int nr = sensor_attr->index; | |
811 | ||
812 | struct it87_data *data = dev_get_drvdata(dev); | |
813 | long val; | |
814 | u8 reg; | |
815 | ||
816 | if (strict_strtol(buf, 10, &val) < 0) | |
817 | return -EINVAL; | |
818 | ||
819 | switch (val) { | |
820 | case (1 << 0): | |
821 | reg = 0x00; | |
822 | break; | |
823 | case (1 << 1): | |
824 | reg = 0x01; | |
825 | break; | |
826 | case (1 << 2): | |
827 | reg = 0x02; | |
828 | break; | |
829 | default: | |
830 | return -EINVAL; | |
831 | } | |
832 | ||
833 | mutex_lock(&data->update_lock); | |
834 | data->pwm_temp_map[nr] = reg; | |
835 | /* If we are in automatic mode, write the temp mapping immediately; | |
836 | * otherwise, just store it for later use. */ | |
837 | if (data->pwm_ctrl[nr] & 0x80) { | |
838 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; | |
839 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); | |
840 | } | |
841 | mutex_unlock(&data->update_lock); | |
842 | return count; | |
843 | } | |
1da177e4 | 844 | |
20ad93d4 JD |
845 | #define show_fan_offset(offset) \ |
846 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
847 | show_fan, NULL, offset - 1); \ | |
848 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
849 | show_fan_min, set_fan_min, offset - 1); \ | |
850 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
851 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
852 | |
853 | show_fan_offset(1); | |
854 | show_fan_offset(2); | |
855 | show_fan_offset(3); | |
856 | ||
857 | #define show_pwm_offset(offset) \ | |
20ad93d4 JD |
858 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
859 | show_pwm_enable, set_pwm_enable, offset - 1); \ | |
860 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
f8d0c19a JD |
861 | show_pwm, set_pwm, offset - 1); \ |
862 | static DEVICE_ATTR(pwm##offset##_freq, \ | |
863 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ | |
94ac7ee6 JD |
864 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ |
865 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ | |
866 | S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, \ | |
867 | offset - 1); | |
1da177e4 LT |
868 | |
869 | show_pwm_offset(1); | |
870 | show_pwm_offset(2); | |
871 | show_pwm_offset(3); | |
872 | ||
17d648bf JD |
873 | /* A different set of callbacks for 16-bit fans */ |
874 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, | |
875 | char *buf) | |
876 | { | |
877 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
878 | int nr = sensor_attr->index; | |
879 | struct it87_data *data = it87_update_device(dev); | |
880 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); | |
881 | } | |
882 | ||
883 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, | |
884 | char *buf) | |
885 | { | |
886 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
887 | int nr = sensor_attr->index; | |
888 | struct it87_data *data = it87_update_device(dev); | |
889 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); | |
890 | } | |
891 | ||
892 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, | |
893 | const char *buf, size_t count) | |
894 | { | |
895 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
896 | int nr = sensor_attr->index; | |
b74f3fdd | 897 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
898 | long val; |
899 | ||
900 | if (strict_strtol(buf, 10, &val) < 0) | |
901 | return -EINVAL; | |
17d648bf JD |
902 | |
903 | mutex_lock(&data->update_lock); | |
904 | data->fan_min[nr] = FAN16_TO_REG(val); | |
c7f1f716 | 905 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
17d648bf | 906 | data->fan_min[nr] & 0xff); |
c7f1f716 | 907 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
17d648bf JD |
908 | data->fan_min[nr] >> 8); |
909 | mutex_unlock(&data->update_lock); | |
910 | return count; | |
911 | } | |
912 | ||
913 | /* We want to use the same sysfs file names as 8-bit fans, but we need | |
914 | different variable names, so we have to use SENSOR_ATTR instead of | |
915 | SENSOR_DEVICE_ATTR. */ | |
916 | #define show_fan16_offset(offset) \ | |
917 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ | |
918 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ | |
919 | show_fan16, NULL, offset - 1); \ | |
920 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ | |
921 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
922 | show_fan16_min, set_fan16_min, offset - 1) | |
923 | ||
924 | show_fan16_offset(1); | |
925 | show_fan16_offset(2); | |
926 | show_fan16_offset(3); | |
c7f1f716 JD |
927 | show_fan16_offset(4); |
928 | show_fan16_offset(5); | |
17d648bf | 929 | |
1da177e4 | 930 | /* Alarms */ |
5f2dc798 JD |
931 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
932 | char *buf) | |
1da177e4 LT |
933 | { |
934 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 935 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 936 | } |
1d66c64c | 937 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 938 | |
0124dd78 JD |
939 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
940 | char *buf) | |
941 | { | |
942 | int bitnr = to_sensor_dev_attr(attr)->index; | |
943 | struct it87_data *data = it87_update_device(dev); | |
944 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
945 | } | |
946 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); | |
947 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
948 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
949 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
950 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
951 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
952 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
953 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
954 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
955 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
956 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
957 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
958 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
959 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
960 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
961 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
962 | ||
d9b327c3 JD |
963 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
964 | char *buf) | |
965 | { | |
966 | int bitnr = to_sensor_dev_attr(attr)->index; | |
967 | struct it87_data *data = it87_update_device(dev); | |
968 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); | |
969 | } | |
970 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
971 | const char *buf, size_t count) | |
972 | { | |
973 | int bitnr = to_sensor_dev_attr(attr)->index; | |
974 | struct it87_data *data = dev_get_drvdata(dev); | |
975 | long val; | |
976 | ||
977 | if (strict_strtol(buf, 10, &val) < 0 | |
978 | || (val != 0 && val != 1)) | |
979 | return -EINVAL; | |
980 | ||
981 | mutex_lock(&data->update_lock); | |
982 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); | |
983 | if (val) | |
984 | data->beeps |= (1 << bitnr); | |
985 | else | |
986 | data->beeps &= ~(1 << bitnr); | |
987 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); | |
988 | mutex_unlock(&data->update_lock); | |
989 | return count; | |
990 | } | |
991 | ||
992 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
993 | show_beep, set_beep, 1); | |
994 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); | |
995 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); | |
996 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); | |
997 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); | |
998 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); | |
999 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); | |
1000 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); | |
1001 | /* fanX_beep writability is set later */ | |
1002 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); | |
1003 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); | |
1004 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); | |
1005 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); | |
1006 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); | |
1007 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
1008 | show_beep, set_beep, 2); | |
1009 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); | |
1010 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); | |
1011 | ||
5f2dc798 JD |
1012 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
1013 | char *buf) | |
1da177e4 | 1014 | { |
90d6619a | 1015 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 1016 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 | 1017 | } |
5f2dc798 JD |
1018 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
1019 | const char *buf, size_t count) | |
1da177e4 | 1020 | { |
b74f3fdd | 1021 | struct it87_data *data = dev_get_drvdata(dev); |
f5f64501 JD |
1022 | unsigned long val; |
1023 | ||
1024 | if (strict_strtoul(buf, 10, &val) < 0) | |
1025 | return -EINVAL; | |
1da177e4 | 1026 | |
1da177e4 LT |
1027 | data->vrm = val; |
1028 | ||
1029 | return count; | |
1030 | } | |
1031 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 | 1032 | |
5f2dc798 JD |
1033 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
1034 | char *buf) | |
1da177e4 LT |
1035 | { |
1036 | struct it87_data *data = it87_update_device(dev); | |
1037 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
1038 | } | |
1039 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 1040 | |
b74f3fdd | 1041 | static ssize_t show_name(struct device *dev, struct device_attribute |
1042 | *devattr, char *buf) | |
1043 | { | |
1044 | struct it87_data *data = dev_get_drvdata(dev); | |
1045 | return sprintf(buf, "%s\n", data->name); | |
1046 | } | |
1047 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1048 | ||
87808be4 JD |
1049 | static struct attribute *it87_attributes[] = { |
1050 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1051 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1052 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1053 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1054 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1055 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1056 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1057 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1058 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
1059 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1060 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1061 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1062 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1063 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1064 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1065 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1066 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1067 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1068 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1069 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1070 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
1071 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
1072 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1073 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1074 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 JD |
1075 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1076 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1077 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1078 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
1079 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
1080 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
1081 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1082 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
87808be4 JD |
1083 | |
1084 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1085 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1086 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1087 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1088 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1089 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1090 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1091 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1092 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1093 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
1094 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
1095 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 JD |
1096 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1097 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1098 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
87808be4 JD |
1099 | |
1100 | &dev_attr_alarms.attr, | |
b74f3fdd | 1101 | &dev_attr_name.attr, |
87808be4 JD |
1102 | NULL |
1103 | }; | |
1104 | ||
1105 | static const struct attribute_group it87_group = { | |
1106 | .attrs = it87_attributes, | |
1107 | }; | |
1108 | ||
d9b327c3 JD |
1109 | static struct attribute *it87_attributes_beep[] = { |
1110 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
1111 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
1112 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
1113 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
1114 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
1115 | &sensor_dev_attr_in5_beep.dev_attr.attr, | |
1116 | &sensor_dev_attr_in6_beep.dev_attr.attr, | |
1117 | &sensor_dev_attr_in7_beep.dev_attr.attr, | |
1118 | ||
1119 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
1120 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
1121 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
1122 | NULL | |
1123 | }; | |
1124 | ||
1125 | static const struct attribute_group it87_group_beep = { | |
1126 | .attrs = it87_attributes_beep, | |
1127 | }; | |
1128 | ||
723a0aa0 | 1129 | static struct attribute *it87_attributes_fan16[5][3+1] = { { |
87808be4 JD |
1130 | &sensor_dev_attr_fan1_input16.dev_attr.attr, |
1131 | &sensor_dev_attr_fan1_min16.dev_attr.attr, | |
723a0aa0 JD |
1132 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1133 | NULL | |
1134 | }, { | |
87808be4 JD |
1135 | &sensor_dev_attr_fan2_input16.dev_attr.attr, |
1136 | &sensor_dev_attr_fan2_min16.dev_attr.attr, | |
723a0aa0 JD |
1137 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1138 | NULL | |
1139 | }, { | |
87808be4 JD |
1140 | &sensor_dev_attr_fan3_input16.dev_attr.attr, |
1141 | &sensor_dev_attr_fan3_min16.dev_attr.attr, | |
723a0aa0 JD |
1142 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1143 | NULL | |
1144 | }, { | |
c7f1f716 JD |
1145 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
1146 | &sensor_dev_attr_fan4_min16.dev_attr.attr, | |
723a0aa0 JD |
1147 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1148 | NULL | |
1149 | }, { | |
c7f1f716 JD |
1150 | &sensor_dev_attr_fan5_input16.dev_attr.attr, |
1151 | &sensor_dev_attr_fan5_min16.dev_attr.attr, | |
723a0aa0 JD |
1152 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1153 | NULL | |
1154 | } }; | |
1155 | ||
1156 | static const struct attribute_group it87_group_fan16[5] = { | |
1157 | { .attrs = it87_attributes_fan16[0] }, | |
1158 | { .attrs = it87_attributes_fan16[1] }, | |
1159 | { .attrs = it87_attributes_fan16[2] }, | |
1160 | { .attrs = it87_attributes_fan16[3] }, | |
1161 | { .attrs = it87_attributes_fan16[4] }, | |
1162 | }; | |
87808be4 | 1163 | |
723a0aa0 | 1164 | static struct attribute *it87_attributes_fan[3][4+1] = { { |
87808be4 JD |
1165 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1166 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1167 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
723a0aa0 JD |
1168 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1169 | NULL | |
1170 | }, { | |
87808be4 JD |
1171 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1172 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1173 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
723a0aa0 JD |
1174 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1175 | NULL | |
1176 | }, { | |
87808be4 JD |
1177 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1178 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1179 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
0124dd78 | 1180 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
723a0aa0 JD |
1181 | NULL |
1182 | } }; | |
1183 | ||
1184 | static const struct attribute_group it87_group_fan[3] = { | |
1185 | { .attrs = it87_attributes_fan[0] }, | |
1186 | { .attrs = it87_attributes_fan[1] }, | |
1187 | { .attrs = it87_attributes_fan[2] }, | |
1188 | }; | |
1189 | ||
1190 | static const struct attribute_group * | |
1191 | it87_get_fan_group(const struct it87_data *data) | |
1192 | { | |
1193 | return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; | |
1194 | } | |
0124dd78 | 1195 | |
723a0aa0 | 1196 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
87808be4 | 1197 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
87808be4 | 1198 | &sensor_dev_attr_pwm1.dev_attr.attr, |
d5b0b5d6 | 1199 | &dev_attr_pwm1_freq.attr, |
94ac7ee6 | 1200 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1201 | NULL |
1202 | }, { | |
1203 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1204 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1205 | &dev_attr_pwm2_freq.attr, | |
94ac7ee6 | 1206 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1207 | NULL |
1208 | }, { | |
1209 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1210 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1211 | &dev_attr_pwm3_freq.attr, | |
94ac7ee6 | 1212 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
723a0aa0 JD |
1213 | NULL |
1214 | } }; | |
87808be4 | 1215 | |
723a0aa0 JD |
1216 | static const struct attribute_group it87_group_pwm[3] = { |
1217 | { .attrs = it87_attributes_pwm[0] }, | |
1218 | { .attrs = it87_attributes_pwm[1] }, | |
1219 | { .attrs = it87_attributes_pwm[2] }, | |
1220 | }; | |
1221 | ||
d9b327c3 JD |
1222 | static struct attribute *it87_attributes_fan_beep[] = { |
1223 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
1224 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
1225 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
1226 | &sensor_dev_attr_fan4_beep.dev_attr.attr, | |
1227 | &sensor_dev_attr_fan5_beep.dev_attr.attr, | |
1228 | }; | |
1229 | ||
6a8d7acf | 1230 | static struct attribute *it87_attributes_vid[] = { |
87808be4 JD |
1231 | &dev_attr_vrm.attr, |
1232 | &dev_attr_cpu0_vid.attr, | |
1233 | NULL | |
1234 | }; | |
1235 | ||
6a8d7acf JD |
1236 | static const struct attribute_group it87_group_vid = { |
1237 | .attrs = it87_attributes_vid, | |
87808be4 | 1238 | }; |
1da177e4 | 1239 | |
2d8672c5 | 1240 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 1241 | static int __init it87_find(unsigned short *address, |
1242 | struct it87_sio_data *sio_data) | |
1da177e4 LT |
1243 | { |
1244 | int err = -ENODEV; | |
b74f3fdd | 1245 | u16 chip_type; |
98dd22c3 | 1246 | const char *board_vendor, *board_name; |
1da177e4 LT |
1247 | |
1248 | superio_enter(); | |
67b671bc | 1249 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 1250 | |
1251 | switch (chip_type) { | |
1252 | case IT8705F_DEVID: | |
1253 | sio_data->type = it87; | |
1254 | break; | |
1255 | case IT8712F_DEVID: | |
1256 | sio_data->type = it8712; | |
1257 | break; | |
1258 | case IT8716F_DEVID: | |
1259 | case IT8726F_DEVID: | |
1260 | sio_data->type = it8716; | |
1261 | break; | |
1262 | case IT8718F_DEVID: | |
1263 | sio_data->type = it8718; | |
1264 | break; | |
b4da93e4 JMS |
1265 | case IT8720F_DEVID: |
1266 | sio_data->type = it8720; | |
1267 | break; | |
b74f3fdd | 1268 | case 0xffff: /* No device at all */ |
1269 | goto exit; | |
1270 | default: | |
1271 | pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n", | |
1272 | chip_type); | |
1273 | goto exit; | |
1274 | } | |
1da177e4 | 1275 | |
87673dd7 | 1276 | superio_select(PME); |
1da177e4 LT |
1277 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
1278 | pr_info("it87: Device not activated, skipping\n"); | |
1279 | goto exit; | |
1280 | } | |
1281 | ||
1282 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1283 | if (*address == 0) { | |
1284 | pr_info("it87: Base address not set, skipping\n"); | |
1285 | goto exit; | |
1286 | } | |
1287 | ||
1288 | err = 0; | |
0475169c | 1289 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
1da177e4 | 1290 | pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1291 | chip_type, *address, sio_data->revision); |
1da177e4 | 1292 | |
87673dd7 | 1293 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
895ff267 JD |
1294 | if (sio_data->type == it87) { |
1295 | /* The IT8705F doesn't have VID pins at all */ | |
1296 | sio_data->skip_vid = 1; | |
d9b327c3 JD |
1297 | |
1298 | /* The IT8705F has a different LD number for GPIO */ | |
1299 | superio_select(5); | |
1300 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
895ff267 | 1301 | } else { |
87673dd7 JD |
1302 | int reg; |
1303 | ||
1304 | superio_select(GPIO); | |
895ff267 JD |
1305 | /* We need at least 4 VID pins */ |
1306 | reg = superio_inb(IT87_SIO_GPIO3_REG); | |
1307 | if (reg & 0x0f) { | |
1308 | pr_info("it87: VID is disabled (pins used for GPIO)\n"); | |
1309 | sio_data->skip_vid = 1; | |
1310 | } | |
1311 | ||
591ec650 JD |
1312 | /* Check if fan3 is there or not */ |
1313 | if (reg & (1 << 6)) | |
1314 | sio_data->skip_pwm |= (1 << 2); | |
1315 | if (reg & (1 << 7)) | |
1316 | sio_data->skip_fan |= (1 << 2); | |
1317 | ||
1318 | /* Check if fan2 is there or not */ | |
1319 | reg = superio_inb(IT87_SIO_GPIO5_REG); | |
1320 | if (reg & (1 << 1)) | |
1321 | sio_data->skip_pwm |= (1 << 1); | |
1322 | if (reg & (1 << 2)) | |
1323 | sio_data->skip_fan |= (1 << 1); | |
1324 | ||
895ff267 JD |
1325 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
1326 | && !(sio_data->skip_vid)) | |
b74f3fdd | 1327 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1328 | |
1329 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
1330 | if (reg & (1 << 0)) | |
1331 | pr_info("it87: in3 is VCC (+5V)\n"); | |
1332 | if (reg & (1 << 1)) | |
1333 | pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); | |
d9b327c3 JD |
1334 | |
1335 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; | |
87673dd7 | 1336 | } |
d9b327c3 JD |
1337 | if (sio_data->beep_pin) |
1338 | pr_info("it87: Beeping is supported\n"); | |
87673dd7 | 1339 | |
98dd22c3 JD |
1340 | /* Disable specific features based on DMI strings */ |
1341 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1342 | board_name = dmi_get_system_info(DMI_BOARD_NAME); | |
1343 | if (board_vendor && board_name) { | |
1344 | if (strcmp(board_vendor, "nVIDIA") == 0 | |
1345 | && strcmp(board_name, "FN68PT") == 0) { | |
1346 | /* On the Shuttle SN68PT, FAN_CTL2 is apparently not | |
1347 | connected to a fan, but to something else. One user | |
1348 | has reported instant system power-off when changing | |
1349 | the PWM2 duty cycle, so we disable it. | |
1350 | I use the board name string as the trigger in case | |
1351 | the same board is ever used in other systems. */ | |
1352 | pr_info("it87: Disabling pwm2 due to " | |
1353 | "hardware constraints\n"); | |
1354 | sio_data->skip_pwm = (1 << 1); | |
1355 | } | |
1356 | } | |
1357 | ||
1da177e4 LT |
1358 | exit: |
1359 | superio_exit(); | |
1360 | return err; | |
1361 | } | |
1362 | ||
723a0aa0 JD |
1363 | static void it87_remove_files(struct device *dev) |
1364 | { | |
1365 | struct it87_data *data = platform_get_drvdata(pdev); | |
1366 | struct it87_sio_data *sio_data = dev->platform_data; | |
1367 | const struct attribute_group *fan_group = it87_get_fan_group(data); | |
1368 | int i; | |
1369 | ||
1370 | sysfs_remove_group(&dev->kobj, &it87_group); | |
d9b327c3 JD |
1371 | if (sio_data->beep_pin) |
1372 | sysfs_remove_group(&dev->kobj, &it87_group_beep); | |
723a0aa0 JD |
1373 | for (i = 0; i < 5; i++) { |
1374 | if (!(data->has_fan & (1 << i))) | |
1375 | continue; | |
1376 | sysfs_remove_group(&dev->kobj, &fan_group[i]); | |
d9b327c3 JD |
1377 | if (sio_data->beep_pin) |
1378 | sysfs_remove_file(&dev->kobj, | |
1379 | it87_attributes_fan_beep[i]); | |
723a0aa0 JD |
1380 | } |
1381 | for (i = 0; i < 3; i++) { | |
1382 | if (sio_data->skip_pwm & (1 << 0)) | |
1383 | continue; | |
1384 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); | |
1385 | } | |
6a8d7acf JD |
1386 | if (!sio_data->skip_vid) |
1387 | sysfs_remove_group(&dev->kobj, &it87_group_vid); | |
723a0aa0 JD |
1388 | } |
1389 | ||
b74f3fdd | 1390 | static int __devinit it87_probe(struct platform_device *pdev) |
1da177e4 | 1391 | { |
1da177e4 | 1392 | struct it87_data *data; |
b74f3fdd | 1393 | struct resource *res; |
1394 | struct device *dev = &pdev->dev; | |
1395 | struct it87_sio_data *sio_data = dev->platform_data; | |
723a0aa0 JD |
1396 | const struct attribute_group *fan_group; |
1397 | int err = 0, i; | |
1da177e4 | 1398 | int enable_pwm_interface; |
d9b327c3 | 1399 | int fan_beep_need_rw; |
b74f3fdd | 1400 | static const char *names[] = { |
1401 | "it87", | |
1402 | "it8712", | |
1403 | "it8716", | |
1404 | "it8718", | |
b4da93e4 | 1405 | "it8720", |
b74f3fdd | 1406 | }; |
1407 | ||
1408 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
87b4b663 | 1409 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
b74f3fdd | 1410 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1411 | (unsigned long)res->start, | |
87b4b663 | 1412 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
8e9afcbb JD |
1413 | err = -EBUSY; |
1414 | goto ERROR0; | |
1415 | } | |
1da177e4 | 1416 | |
5f2dc798 JD |
1417 | data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); |
1418 | if (!data) { | |
1da177e4 LT |
1419 | err = -ENOMEM; |
1420 | goto ERROR1; | |
1421 | } | |
1da177e4 | 1422 | |
b74f3fdd | 1423 | data->addr = res->start; |
1424 | data->type = sio_data->type; | |
0475169c | 1425 | data->revision = sio_data->revision; |
b74f3fdd | 1426 | data->name = names[sio_data->type]; |
1da177e4 LT |
1427 | |
1428 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 1429 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
1430 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { | |
8e9afcbb JD |
1431 | err = -ENODEV; |
1432 | goto ERROR2; | |
1da177e4 LT |
1433 | } |
1434 | ||
b74f3fdd | 1435 | platform_set_drvdata(pdev, data); |
1da177e4 | 1436 | |
9a61bf63 | 1437 | mutex_init(&data->update_lock); |
1da177e4 | 1438 | |
1da177e4 | 1439 | /* Check PWM configuration */ |
b74f3fdd | 1440 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 LT |
1441 | |
1442 | /* Initialize the IT87 chip */ | |
b74f3fdd | 1443 | it87_init_device(pdev); |
1da177e4 LT |
1444 | |
1445 | /* Register sysfs hooks */ | |
5f2dc798 JD |
1446 | err = sysfs_create_group(&dev->kobj, &it87_group); |
1447 | if (err) | |
b74f3fdd | 1448 | goto ERROR2; |
17d648bf | 1449 | |
d9b327c3 JD |
1450 | if (sio_data->beep_pin) { |
1451 | err = sysfs_create_group(&dev->kobj, &it87_group_beep); | |
1452 | if (err) | |
1453 | goto ERROR4; | |
1454 | } | |
1455 | ||
9060f8bd | 1456 | /* Do not create fan files for disabled fans */ |
723a0aa0 | 1457 | fan_group = it87_get_fan_group(data); |
d9b327c3 | 1458 | fan_beep_need_rw = 1; |
723a0aa0 JD |
1459 | for (i = 0; i < 5; i++) { |
1460 | if (!(data->has_fan & (1 << i))) | |
1461 | continue; | |
1462 | err = sysfs_create_group(&dev->kobj, &fan_group[i]); | |
1463 | if (err) | |
1464 | goto ERROR4; | |
d9b327c3 JD |
1465 | |
1466 | if (sio_data->beep_pin) { | |
1467 | err = sysfs_create_file(&dev->kobj, | |
1468 | it87_attributes_fan_beep[i]); | |
1469 | if (err) | |
1470 | goto ERROR4; | |
1471 | if (!fan_beep_need_rw) | |
1472 | continue; | |
1473 | ||
1474 | /* As we have a single beep enable bit for all fans, | |
1475 | * only the first enabled fan has a writable attribute | |
1476 | * for it. */ | |
1477 | if (sysfs_chmod_file(&dev->kobj, | |
1478 | it87_attributes_fan_beep[i], | |
1479 | S_IRUGO | S_IWUSR)) | |
1480 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", | |
1481 | i + 1); | |
1482 | fan_beep_need_rw = 0; | |
1483 | } | |
17d648bf JD |
1484 | } |
1485 | ||
1da177e4 | 1486 | if (enable_pwm_interface) { |
723a0aa0 JD |
1487 | for (i = 0; i < 3; i++) { |
1488 | if (sio_data->skip_pwm & (1 << i)) | |
1489 | continue; | |
1490 | err = sysfs_create_group(&dev->kobj, | |
1491 | &it87_group_pwm[i]); | |
1492 | if (err) | |
98dd22c3 JD |
1493 | goto ERROR4; |
1494 | } | |
1da177e4 LT |
1495 | } |
1496 | ||
895ff267 | 1497 | if (!sio_data->skip_vid) { |
303760b4 | 1498 | data->vrm = vid_which_vrm(); |
87673dd7 | 1499 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 1500 | data->vid = sio_data->vid_value; |
6a8d7acf JD |
1501 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
1502 | if (err) | |
87808be4 JD |
1503 | goto ERROR4; |
1504 | } | |
1505 | ||
1beeffe4 TJ |
1506 | data->hwmon_dev = hwmon_device_register(dev); |
1507 | if (IS_ERR(data->hwmon_dev)) { | |
1508 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 | 1509 | goto ERROR4; |
1da177e4 LT |
1510 | } |
1511 | ||
1512 | return 0; | |
1513 | ||
87808be4 | 1514 | ERROR4: |
723a0aa0 | 1515 | it87_remove_files(dev); |
1da177e4 | 1516 | ERROR2: |
b74f3fdd | 1517 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
1518 | kfree(data); |
1519 | ERROR1: | |
87b4b663 | 1520 | release_region(res->start, IT87_EC_EXTENT); |
1da177e4 LT |
1521 | ERROR0: |
1522 | return err; | |
1523 | } | |
1524 | ||
b74f3fdd | 1525 | static int __devexit it87_remove(struct platform_device *pdev) |
1da177e4 | 1526 | { |
b74f3fdd | 1527 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 1528 | |
1beeffe4 | 1529 | hwmon_device_unregister(data->hwmon_dev); |
723a0aa0 | 1530 | it87_remove_files(&pdev->dev); |
943b0830 | 1531 | |
87b4b663 | 1532 | release_region(data->addr, IT87_EC_EXTENT); |
b74f3fdd | 1533 | platform_set_drvdata(pdev, NULL); |
943b0830 | 1534 | kfree(data); |
1da177e4 LT |
1535 | |
1536 | return 0; | |
1537 | } | |
1538 | ||
7f999aa7 | 1539 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1540 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1541 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1542 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 1543 | { |
b74f3fdd | 1544 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1545 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1546 | } |
1547 | ||
7f999aa7 | 1548 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1549 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1550 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1551 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 1552 | { |
b74f3fdd | 1553 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1554 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1555 | } |
1556 | ||
1557 | /* Return 1 if and only if the PWM interface is safe to use */ | |
b74f3fdd | 1558 | static int __devinit it87_check_pwm(struct device *dev) |
1da177e4 | 1559 | { |
b74f3fdd | 1560 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1561 | /* Some BIOSes fail to correctly configure the IT87 fans. All fans off |
1562 | * and polarity set to active low is sign that this is the case so we | |
1563 | * disable pwm control to protect the user. */ | |
b74f3fdd | 1564 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
1565 | if ((tmp & 0x87) == 0) { |
1566 | if (fix_pwm_polarity) { | |
1567 | /* The user asks us to attempt a chip reconfiguration. | |
1568 | * This means switching to active high polarity and | |
1569 | * inverting all fan speed values. */ | |
1570 | int i; | |
1571 | u8 pwm[3]; | |
1572 | ||
1573 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1574 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
1575 | IT87_REG_PWM(i)); |
1576 | ||
1577 | /* If any fan is in automatic pwm mode, the polarity | |
1578 | * might be correct, as suspicious as it seems, so we | |
1579 | * better don't change anything (but still disable the | |
1580 | * PWM interface). */ | |
1581 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { | |
b74f3fdd | 1582 | dev_info(dev, "Reconfiguring PWM to " |
1da177e4 | 1583 | "active high polarity\n"); |
b74f3fdd | 1584 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
1585 | tmp | 0x87); |
1586 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1587 | it87_write_value(data, |
1da177e4 LT |
1588 | IT87_REG_PWM(i), |
1589 | 0x7f & ~pwm[i]); | |
1590 | return 1; | |
1591 | } | |
1592 | ||
b74f3fdd | 1593 | dev_info(dev, "PWM configuration is " |
1da177e4 LT |
1594 | "too broken to be fixed\n"); |
1595 | } | |
1596 | ||
b74f3fdd | 1597 | dev_info(dev, "Detected broken BIOS " |
1da177e4 LT |
1598 | "defaults, disabling PWM interface\n"); |
1599 | return 0; | |
1600 | } else if (fix_pwm_polarity) { | |
b74f3fdd | 1601 | dev_info(dev, "PWM configuration looks " |
1da177e4 LT |
1602 | "sane, won't touch\n"); |
1603 | } | |
1604 | ||
1605 | return 1; | |
1606 | } | |
1607 | ||
1608 | /* Called when we have found a new IT87. */ | |
b74f3fdd | 1609 | static void __devinit it87_init_device(struct platform_device *pdev) |
1da177e4 | 1610 | { |
591ec650 | 1611 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
b74f3fdd | 1612 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 1613 | int tmp, i; |
591ec650 | 1614 | u8 mask; |
1da177e4 | 1615 | |
b99883dc JD |
1616 | /* For each PWM channel: |
1617 | * - If it is in automatic mode, setting to manual mode should set | |
1618 | * the fan to full speed by default. | |
1619 | * - If it is in manual mode, we need a mapping to temperature | |
1620 | * channels to use when later setting to automatic mode later. | |
1621 | * Use a 1:1 mapping by default (we are clueless.) | |
1622 | * In both cases, the value can (and should) be changed by the user | |
1623 | * prior to switching to a different mode. */ | |
1da177e4 | 1624 | for (i = 0; i < 3; i++) { |
b99883dc JD |
1625 | data->pwm_temp_map[i] = i; |
1626 | data->pwm_duty[i] = 0x7f; /* Full speed */ | |
1da177e4 LT |
1627 | } |
1628 | ||
c5df9b7a JD |
1629 | /* Some chips seem to have default value 0xff for all limit |
1630 | * registers. For low voltage limits it makes no sense and triggers | |
1631 | * alarms, so change to 0 instead. For high temperature limits, it | |
1632 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
1633 | * but is still confusing, so change to 127 degrees C. */ | |
1634 | for (i = 0; i < 8; i++) { | |
b74f3fdd | 1635 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 1636 | if (tmp == 0xff) |
b74f3fdd | 1637 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
1638 | } |
1639 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 1640 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 1641 | if (tmp == 0xff) |
b74f3fdd | 1642 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
1643 | } |
1644 | ||
77fa49d9 | 1645 | /* Check if temperature channels are reset manually or by some reason */ |
b74f3fdd | 1646 | tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
1da177e4 LT |
1647 | if ((tmp & 0x3f) == 0) { |
1648 | /* Temp1,Temp3=thermistor; Temp2=thermal diode */ | |
1649 | tmp = (tmp & 0xc0) | 0x2a; | |
b74f3fdd | 1650 | it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp); |
1da177e4 LT |
1651 | } |
1652 | data->sensor = tmp; | |
1653 | ||
1654 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 1655 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
1656 | if ((tmp & 0xff) == 0) { |
1657 | /* Enable all voltage monitors */ | |
b74f3fdd | 1658 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
1659 | } |
1660 | ||
1661 | /* Check if tachometers are reset manually or by some reason */ | |
591ec650 | 1662 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
b74f3fdd | 1663 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
591ec650 | 1664 | if ((data->fan_main_ctrl & mask) == 0) { |
1da177e4 | 1665 | /* Enable all fan tachometers */ |
591ec650 | 1666 | data->fan_main_ctrl |= mask; |
5f2dc798 JD |
1667 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
1668 | data->fan_main_ctrl); | |
1da177e4 | 1669 | } |
9060f8bd | 1670 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 1671 | |
17d648bf | 1672 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 1673 | if (has_16bit_fans(data)) { |
b74f3fdd | 1674 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 1675 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 1676 | dev_dbg(&pdev->dev, |
17d648bf | 1677 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 1678 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
1679 | tmp | 0x07); |
1680 | } | |
816d8c6a AP |
1681 | /* IT8705F only supports three fans. */ |
1682 | if (data->type != it87) { | |
1683 | if (tmp & (1 << 4)) | |
1684 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
1685 | if (tmp & (1 << 5)) | |
1686 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
1687 | } | |
17d648bf JD |
1688 | } |
1689 | ||
591ec650 JD |
1690 | /* Fan input pins may be used for alternative functions */ |
1691 | data->has_fan &= ~sio_data->skip_fan; | |
1692 | ||
1da177e4 | 1693 | /* Start monitoring */ |
b74f3fdd | 1694 | it87_write_value(data, IT87_REG_CONFIG, |
1695 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | |
1da177e4 LT |
1696 | | (update_vbat ? 0x41 : 0x01)); |
1697 | } | |
1698 | ||
b99883dc JD |
1699 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
1700 | { | |
1701 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); | |
1702 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ | |
1703 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; | |
1704 | else /* Manual mode */ | |
1705 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; | |
1706 | } | |
1707 | ||
1da177e4 LT |
1708 | static struct it87_data *it87_update_device(struct device *dev) |
1709 | { | |
b74f3fdd | 1710 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1711 | int i; |
1712 | ||
9a61bf63 | 1713 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1714 | |
1715 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1716 | || !data->valid) { | |
1da177e4 LT |
1717 | if (update_vbat) { |
1718 | /* Cleared after each update, so reenable. Value | |
5f2dc798 | 1719 | returned by this read will be previous value */ |
b74f3fdd | 1720 | it87_write_value(data, IT87_REG_CONFIG, |
5f2dc798 | 1721 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
1da177e4 LT |
1722 | } |
1723 | for (i = 0; i <= 7; i++) { | |
1724 | data->in[i] = | |
5f2dc798 | 1725 | it87_read_value(data, IT87_REG_VIN(i)); |
1da177e4 | 1726 | data->in_min[i] = |
5f2dc798 | 1727 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
1da177e4 | 1728 | data->in_max[i] = |
5f2dc798 | 1729 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 1730 | } |
3543a53f | 1731 | /* in8 (battery) has no limit registers */ |
5f2dc798 | 1732 | data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 1733 | |
c7f1f716 | 1734 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
1735 | /* Skip disabled fans */ |
1736 | if (!(data->has_fan & (1 << i))) | |
1737 | continue; | |
1738 | ||
1da177e4 | 1739 | data->fan_min[i] = |
5f2dc798 | 1740 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
b74f3fdd | 1741 | data->fan[i] = it87_read_value(data, |
c7f1f716 | 1742 | IT87_REG_FAN[i]); |
17d648bf | 1743 | /* Add high byte if in 16-bit mode */ |
0475169c | 1744 | if (has_16bit_fans(data)) { |
b74f3fdd | 1745 | data->fan[i] |= it87_read_value(data, |
c7f1f716 | 1746 | IT87_REG_FANX[i]) << 8; |
b74f3fdd | 1747 | data->fan_min[i] |= it87_read_value(data, |
c7f1f716 | 1748 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 1749 | } |
1da177e4 LT |
1750 | } |
1751 | for (i = 0; i < 3; i++) { | |
1752 | data->temp[i] = | |
5f2dc798 | 1753 | it87_read_value(data, IT87_REG_TEMP(i)); |
1da177e4 | 1754 | data->temp_high[i] = |
5f2dc798 | 1755 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
1da177e4 | 1756 | data->temp_low[i] = |
5f2dc798 | 1757 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
1da177e4 LT |
1758 | } |
1759 | ||
17d648bf | 1760 | /* Newer chips don't have clock dividers */ |
0475169c | 1761 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 1762 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
1763 | data->fan_div[0] = i & 0x07; |
1764 | data->fan_div[1] = (i >> 3) & 0x07; | |
1765 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
1766 | } | |
1da177e4 LT |
1767 | |
1768 | data->alarms = | |
b74f3fdd | 1769 | it87_read_value(data, IT87_REG_ALARM1) | |
1770 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
1771 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
d9b327c3 | 1772 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
b99883dc | 1773 | |
b74f3fdd | 1774 | data->fan_main_ctrl = it87_read_value(data, |
1775 | IT87_REG_FAN_MAIN_CTRL); | |
1776 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
b99883dc JD |
1777 | for (i = 0; i < 3; i++) |
1778 | it87_update_pwm_ctrl(data, i); | |
b74f3fdd | 1779 | |
1780 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
0475169c | 1781 | /* The 8705 does not have VID capability. |
b4da93e4 JMS |
1782 | The 8718 and the 8720 don't use IT87_REG_VID for the |
1783 | same purpose. */ | |
17d648bf | 1784 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 1785 | data->vid = it87_read_value(data, IT87_REG_VID); |
17d648bf JD |
1786 | /* The older IT8712F revisions had only 5 VID pins, |
1787 | but we assume it is always safe to read 6 bits. */ | |
1788 | data->vid &= 0x3f; | |
1da177e4 LT |
1789 | } |
1790 | data->last_updated = jiffies; | |
1791 | data->valid = 1; | |
1792 | } | |
1793 | ||
9a61bf63 | 1794 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1795 | |
1796 | return data; | |
1797 | } | |
1798 | ||
b74f3fdd | 1799 | static int __init it87_device_add(unsigned short address, |
1800 | const struct it87_sio_data *sio_data) | |
1801 | { | |
1802 | struct resource res = { | |
87b4b663 BH |
1803 | .start = address + IT87_EC_OFFSET, |
1804 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 1805 | .name = DRVNAME, |
1806 | .flags = IORESOURCE_IO, | |
1807 | }; | |
1808 | int err; | |
1809 | ||
b9acb64a JD |
1810 | err = acpi_check_resource_conflict(&res); |
1811 | if (err) | |
1812 | goto exit; | |
1813 | ||
b74f3fdd | 1814 | pdev = platform_device_alloc(DRVNAME, address); |
1815 | if (!pdev) { | |
1816 | err = -ENOMEM; | |
1817 | printk(KERN_ERR DRVNAME ": Device allocation failed\n"); | |
1818 | goto exit; | |
1819 | } | |
1820 | ||
1821 | err = platform_device_add_resources(pdev, &res, 1); | |
1822 | if (err) { | |
1823 | printk(KERN_ERR DRVNAME ": Device resource addition failed " | |
1824 | "(%d)\n", err); | |
1825 | goto exit_device_put; | |
1826 | } | |
1827 | ||
1828 | err = platform_device_add_data(pdev, sio_data, | |
1829 | sizeof(struct it87_sio_data)); | |
1830 | if (err) { | |
1831 | printk(KERN_ERR DRVNAME ": Platform data allocation failed\n"); | |
1832 | goto exit_device_put; | |
1833 | } | |
1834 | ||
1835 | err = platform_device_add(pdev); | |
1836 | if (err) { | |
1837 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
1838 | err); | |
1839 | goto exit_device_put; | |
1840 | } | |
1841 | ||
1842 | return 0; | |
1843 | ||
1844 | exit_device_put: | |
1845 | platform_device_put(pdev); | |
1846 | exit: | |
1847 | return err; | |
1848 | } | |
1849 | ||
1da177e4 LT |
1850 | static int __init sm_it87_init(void) |
1851 | { | |
b74f3fdd | 1852 | int err; |
5f2dc798 | 1853 | unsigned short isa_address = 0; |
b74f3fdd | 1854 | struct it87_sio_data sio_data; |
1855 | ||
98dd22c3 | 1856 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
b74f3fdd | 1857 | err = it87_find(&isa_address, &sio_data); |
1858 | if (err) | |
1859 | return err; | |
1860 | err = platform_driver_register(&it87_driver); | |
1861 | if (err) | |
1862 | return err; | |
fde09509 | 1863 | |
b74f3fdd | 1864 | err = it87_device_add(isa_address, &sio_data); |
5f2dc798 | 1865 | if (err) { |
b74f3fdd | 1866 | platform_driver_unregister(&it87_driver); |
1867 | return err; | |
1868 | } | |
1869 | ||
1870 | return 0; | |
1da177e4 LT |
1871 | } |
1872 | ||
1873 | static void __exit sm_it87_exit(void) | |
1874 | { | |
b74f3fdd | 1875 | platform_device_unregister(pdev); |
1876 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
1877 | } |
1878 | ||
1879 | ||
f1d8e332 | 1880 | MODULE_AUTHOR("Chris Gauthron, " |
b19367c6 | 1881 | "Jean Delvare <khali@linux-fr.org>"); |
b4da93e4 | 1882 | MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver"); |
1da177e4 LT |
1883 | module_param(update_vbat, bool, 0); |
1884 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
1885 | module_param(fix_pwm_polarity, bool, 0); | |
5f2dc798 JD |
1886 | MODULE_PARM_DESC(fix_pwm_polarity, |
1887 | "Force PWM polarity to active high (DANGEROUS)"); | |
1da177e4 LT |
1888 | MODULE_LICENSE("GPL"); |
1889 | ||
1890 | module_init(sm_it87_init); | |
1891 | module_exit(sm_it87_exit); |