Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | it87.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring. | |
4 | ||
87b4b663 BH |
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 | ||
91749996 | 13 | Supports: IT8705F Super I/O chip w/LPC interface |
8e9afcbb | 14 | IT8712F Super I/O chip w/LPC interface |
17d648bf | 15 | IT8716F Super I/O chip w/LPC interface |
87673dd7 | 16 | IT8718F Super I/O chip w/LPC interface |
08a8f6e9 | 17 | IT8726F Super I/O chip w/LPC interface |
1da177e4 LT |
18 | Sis950 A clone of the IT8705F |
19 | ||
f1d8e332 | 20 | Copyright (C) 2001 Chris Gauthron |
0124dd78 | 21 | Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org> |
1da177e4 LT |
22 | |
23 | This program is free software; you can redistribute it and/or modify | |
24 | it under the terms of the GNU General Public License as published by | |
25 | the Free Software Foundation; either version 2 of the License, or | |
26 | (at your option) any later version. | |
27 | ||
28 | This program is distributed in the hope that it will be useful, | |
29 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
30 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
31 | GNU General Public License for more details. | |
32 | ||
33 | You should have received a copy of the GNU General Public License | |
34 | along with this program; if not, write to the Free Software | |
35 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/module.h> |
39 | #include <linux/init.h> | |
40 | #include <linux/slab.h> | |
41 | #include <linux/jiffies.h> | |
b74f3fdd | 42 | #include <linux/platform_device.h> |
943b0830 | 43 | #include <linux/hwmon.h> |
303760b4 JD |
44 | #include <linux/hwmon-sysfs.h> |
45 | #include <linux/hwmon-vid.h> | |
943b0830 | 46 | #include <linux/err.h> |
9a61bf63 | 47 | #include <linux/mutex.h> |
87808be4 | 48 | #include <linux/sysfs.h> |
1da177e4 LT |
49 | #include <asm/io.h> |
50 | ||
b74f3fdd | 51 | #define DRVNAME "it87" |
1da177e4 | 52 | |
8e9afcbb | 53 | enum chips { it87, it8712, it8716, it8718 }; |
1da177e4 | 54 | |
67b671bc JD |
55 | static unsigned short force_id; |
56 | module_param(force_id, ushort, 0); | |
57 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
58 | ||
b74f3fdd | 59 | static struct platform_device *pdev; |
60 | ||
1da177e4 LT |
61 | #define REG 0x2e /* The register to read/write */ |
62 | #define DEV 0x07 /* Register: Logical device select */ | |
63 | #define VAL 0x2f /* The value to read/write */ | |
64 | #define PME 0x04 /* The device with the fan registers in it */ | |
87673dd7 | 65 | #define GPIO 0x07 /* The device with the IT8718F VID value in it */ |
1da177e4 LT |
66 | #define DEVID 0x20 /* Register: Device ID */ |
67 | #define DEVREV 0x22 /* Register: Device Revision */ | |
68 | ||
69 | static inline int | |
70 | superio_inb(int reg) | |
71 | { | |
72 | outb(reg, REG); | |
73 | return inb(VAL); | |
74 | } | |
75 | ||
76 | static int superio_inw(int reg) | |
77 | { | |
78 | int val; | |
79 | outb(reg++, REG); | |
80 | val = inb(VAL) << 8; | |
81 | outb(reg, REG); | |
82 | val |= inb(VAL); | |
83 | return val; | |
84 | } | |
85 | ||
86 | static inline void | |
87673dd7 | 87 | superio_select(int ldn) |
1da177e4 LT |
88 | { |
89 | outb(DEV, REG); | |
87673dd7 | 90 | outb(ldn, VAL); |
1da177e4 LT |
91 | } |
92 | ||
93 | static inline void | |
94 | superio_enter(void) | |
95 | { | |
96 | outb(0x87, REG); | |
97 | outb(0x01, REG); | |
98 | outb(0x55, REG); | |
99 | outb(0x55, REG); | |
100 | } | |
101 | ||
102 | static inline void | |
103 | superio_exit(void) | |
104 | { | |
105 | outb(0x02, REG); | |
106 | outb(0x02, VAL); | |
107 | } | |
108 | ||
87673dd7 | 109 | /* Logical device 4 registers */ |
1da177e4 LT |
110 | #define IT8712F_DEVID 0x8712 |
111 | #define IT8705F_DEVID 0x8705 | |
17d648bf | 112 | #define IT8716F_DEVID 0x8716 |
87673dd7 | 113 | #define IT8718F_DEVID 0x8718 |
08a8f6e9 | 114 | #define IT8726F_DEVID 0x8726 |
1da177e4 LT |
115 | #define IT87_ACT_REG 0x30 |
116 | #define IT87_BASE_REG 0x60 | |
117 | ||
87673dd7 JD |
118 | /* Logical device 7 registers (IT8712F and later) */ |
119 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ | |
120 | #define IT87_SIO_VID_REG 0xfc /* VID value */ | |
121 | ||
1da177e4 LT |
122 | /* Update battery voltage after every reading if true */ |
123 | static int update_vbat; | |
124 | ||
125 | /* Not all BIOSes properly configure the PWM registers */ | |
126 | static int fix_pwm_polarity; | |
127 | ||
1da177e4 LT |
128 | /* Many IT87 constants specified below */ |
129 | ||
130 | /* Length of ISA address segment */ | |
131 | #define IT87_EXTENT 8 | |
132 | ||
87b4b663 BH |
133 | /* Length of ISA address segment for Environmental Controller */ |
134 | #define IT87_EC_EXTENT 2 | |
135 | ||
136 | /* Offset of EC registers from ISA base address */ | |
137 | #define IT87_EC_OFFSET 5 | |
138 | ||
139 | /* Where are the ISA address/data registers relative to the EC base address */ | |
140 | #define IT87_ADDR_REG_OFFSET 0 | |
141 | #define IT87_DATA_REG_OFFSET 1 | |
1da177e4 LT |
142 | |
143 | /*----- The IT87 registers -----*/ | |
144 | ||
145 | #define IT87_REG_CONFIG 0x00 | |
146 | ||
147 | #define IT87_REG_ALARM1 0x01 | |
148 | #define IT87_REG_ALARM2 0x02 | |
149 | #define IT87_REG_ALARM3 0x03 | |
150 | ||
87673dd7 JD |
151 | /* The IT8718F has the VID value in a different register, in Super-I/O |
152 | configuration space. */ | |
1da177e4 | 153 | #define IT87_REG_VID 0x0a |
0475169c AP |
154 | /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
155 | for fan divisors. Later IT8712F revisions must use 16-bit tachometer | |
156 | mode. */ | |
1da177e4 | 157 | #define IT87_REG_FAN_DIV 0x0b |
17d648bf | 158 | #define IT87_REG_FAN_16BIT 0x0c |
1da177e4 LT |
159 | |
160 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ | |
161 | ||
c7f1f716 JD |
162 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
163 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; | |
164 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; | |
165 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; | |
1da177e4 LT |
166 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
167 | #define IT87_REG_FAN_CTL 0x14 | |
168 | #define IT87_REG_PWM(nr) (0x15 + (nr)) | |
169 | ||
170 | #define IT87_REG_VIN(nr) (0x20 + (nr)) | |
171 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) | |
172 | ||
173 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) | |
174 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) | |
175 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) | |
176 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) | |
177 | ||
1da177e4 LT |
178 | #define IT87_REG_VIN_ENABLE 0x50 |
179 | #define IT87_REG_TEMP_ENABLE 0x51 | |
180 | ||
181 | #define IT87_REG_CHIPID 0x58 | |
182 | ||
183 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255)) | |
184 | #define IN_FROM_REG(val) ((val) * 16) | |
185 | ||
186 | static inline u8 FAN_TO_REG(long rpm, int div) | |
187 | { | |
188 | if (rpm == 0) | |
189 | return 255; | |
190 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
191 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, | |
192 | 254); | |
193 | } | |
194 | ||
17d648bf JD |
195 | static inline u16 FAN16_TO_REG(long rpm) |
196 | { | |
197 | if (rpm == 0) | |
198 | return 0xffff; | |
199 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); | |
200 | } | |
201 | ||
1da177e4 | 202 | #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div))) |
17d648bf JD |
203 | /* The divider is fixed to 2 in 16-bit mode */ |
204 | #define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2)) | |
1da177e4 LT |
205 | |
206 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\ | |
207 | ((val)+500)/1000),-128,127)) | |
208 | #define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000) | |
209 | ||
1da177e4 LT |
210 | #define PWM_TO_REG(val) ((val) >> 1) |
211 | #define PWM_FROM_REG(val) (((val)&0x7f) << 1) | |
212 | ||
213 | static int DIV_TO_REG(int val) | |
214 | { | |
215 | int answer = 0; | |
b9e349f7 | 216 | while (answer < 7 && (val >>= 1)) |
1da177e4 LT |
217 | answer++; |
218 | return answer; | |
219 | } | |
220 | #define DIV_FROM_REG(val) (1 << (val)) | |
221 | ||
f8d0c19a JD |
222 | static const unsigned int pwm_freq[8] = { |
223 | 48000000 / 128, | |
224 | 24000000 / 128, | |
225 | 12000000 / 128, | |
226 | 8000000 / 128, | |
227 | 6000000 / 128, | |
228 | 3000000 / 128, | |
229 | 1500000 / 128, | |
230 | 750000 / 128, | |
231 | }; | |
232 | ||
1da177e4 | 233 | |
b74f3fdd | 234 | struct it87_sio_data { |
235 | enum chips type; | |
236 | /* Values read from Super-I/O config space */ | |
0475169c | 237 | u8 revision; |
b74f3fdd | 238 | u8 vid_value; |
239 | }; | |
240 | ||
ed6bafbf JD |
241 | /* For each registered chip, we need to keep some data in memory. |
242 | The structure is dynamically allocated. */ | |
1da177e4 | 243 | struct it87_data { |
1beeffe4 | 244 | struct device *hwmon_dev; |
1da177e4 | 245 | enum chips type; |
0475169c | 246 | u8 revision; |
1da177e4 | 247 | |
b74f3fdd | 248 | unsigned short addr; |
249 | const char *name; | |
9a61bf63 | 250 | struct mutex update_lock; |
1da177e4 LT |
251 | char valid; /* !=0 if following fields are valid */ |
252 | unsigned long last_updated; /* In jiffies */ | |
253 | ||
254 | u8 in[9]; /* Register value */ | |
3543a53f JD |
255 | u8 in_max[8]; /* Register value */ |
256 | u8 in_min[8]; /* Register value */ | |
9060f8bd | 257 | u8 has_fan; /* Bitfield, fans enabled */ |
c7f1f716 JD |
258 | u16 fan[5]; /* Register values, possibly combined */ |
259 | u16 fan_min[5]; /* Register values, possibly combined */ | |
1da177e4 LT |
260 | u8 temp[3]; /* Register value */ |
261 | u8 temp_high[3]; /* Register value */ | |
262 | u8 temp_low[3]; /* Register value */ | |
263 | u8 sensor; /* Register value */ | |
264 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
265 | u8 vid; /* Register encoding, combined */ | |
a7be58a1 | 266 | u8 vrm; |
1da177e4 LT |
267 | u32 alarms; /* Register encoding, combined */ |
268 | u8 fan_main_ctrl; /* Register value */ | |
f8d0c19a | 269 | u8 fan_ctl; /* Register value */ |
1da177e4 LT |
270 | u8 manual_pwm_ctl[3]; /* manual PWM value set by user */ |
271 | }; | |
272 | ||
0475169c AP |
273 | static inline int has_16bit_fans(const struct it87_data *data) |
274 | { | |
816d8c6a AP |
275 | /* IT8705F Datasheet 0.4.1, 3h == Version G. |
276 | IT8712F Datasheet 0.9.1, section 8.3.5 indicates 7h == Version I. | |
277 | These are the first revisions with 16bit tachometer support. */ | |
278 | return (data->type == it87 && data->revision >= 0x03) | |
279 | || (data->type == it8712 && data->revision >= 0x07) | |
0475169c AP |
280 | || data->type == it8716 |
281 | || data->type == it8718; | |
282 | } | |
1da177e4 | 283 | |
b74f3fdd | 284 | static int it87_probe(struct platform_device *pdev); |
d0546128 | 285 | static int __devexit it87_remove(struct platform_device *pdev); |
1da177e4 | 286 | |
b74f3fdd | 287 | static int it87_read_value(struct it87_data *data, u8 reg); |
288 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); | |
1da177e4 | 289 | static struct it87_data *it87_update_device(struct device *dev); |
b74f3fdd | 290 | static int it87_check_pwm(struct device *dev); |
291 | static void it87_init_device(struct platform_device *pdev); | |
1da177e4 LT |
292 | |
293 | ||
b74f3fdd | 294 | static struct platform_driver it87_driver = { |
cdaf7934 | 295 | .driver = { |
87218842 | 296 | .owner = THIS_MODULE, |
b74f3fdd | 297 | .name = DRVNAME, |
cdaf7934 | 298 | }, |
b74f3fdd | 299 | .probe = it87_probe, |
300 | .remove = __devexit_p(it87_remove), | |
fde09509 JD |
301 | }; |
302 | ||
20ad93d4 JD |
303 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
304 | char *buf) | |
1da177e4 | 305 | { |
20ad93d4 JD |
306 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
307 | int nr = sensor_attr->index; | |
308 | ||
1da177e4 LT |
309 | struct it87_data *data = it87_update_device(dev); |
310 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); | |
311 | } | |
312 | ||
20ad93d4 JD |
313 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
314 | char *buf) | |
1da177e4 | 315 | { |
20ad93d4 JD |
316 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
317 | int nr = sensor_attr->index; | |
318 | ||
1da177e4 LT |
319 | struct it87_data *data = it87_update_device(dev); |
320 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); | |
321 | } | |
322 | ||
20ad93d4 JD |
323 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
324 | char *buf) | |
1da177e4 | 325 | { |
20ad93d4 JD |
326 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
327 | int nr = sensor_attr->index; | |
328 | ||
1da177e4 LT |
329 | struct it87_data *data = it87_update_device(dev); |
330 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); | |
331 | } | |
332 | ||
20ad93d4 JD |
333 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
334 | const char *buf, size_t count) | |
1da177e4 | 335 | { |
20ad93d4 JD |
336 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
337 | int nr = sensor_attr->index; | |
338 | ||
b74f3fdd | 339 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
340 | unsigned long val = simple_strtoul(buf, NULL, 10); |
341 | ||
9a61bf63 | 342 | mutex_lock(&data->update_lock); |
1da177e4 | 343 | data->in_min[nr] = IN_TO_REG(val); |
b74f3fdd | 344 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
1da177e4 | 345 | data->in_min[nr]); |
9a61bf63 | 346 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
347 | return count; |
348 | } | |
20ad93d4 JD |
349 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
350 | const char *buf, size_t count) | |
1da177e4 | 351 | { |
20ad93d4 JD |
352 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
353 | int nr = sensor_attr->index; | |
354 | ||
b74f3fdd | 355 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
356 | unsigned long val = simple_strtoul(buf, NULL, 10); |
357 | ||
9a61bf63 | 358 | mutex_lock(&data->update_lock); |
1da177e4 | 359 | data->in_max[nr] = IN_TO_REG(val); |
b74f3fdd | 360 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
1da177e4 | 361 | data->in_max[nr]); |
9a61bf63 | 362 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
363 | return count; |
364 | } | |
365 | ||
366 | #define show_in_offset(offset) \ | |
20ad93d4 JD |
367 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
368 | show_in, NULL, offset); | |
1da177e4 LT |
369 | |
370 | #define limit_in_offset(offset) \ | |
20ad93d4 JD |
371 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
372 | show_in_min, set_in_min, offset); \ | |
373 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
374 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
375 | |
376 | show_in_offset(0); | |
377 | limit_in_offset(0); | |
378 | show_in_offset(1); | |
379 | limit_in_offset(1); | |
380 | show_in_offset(2); | |
381 | limit_in_offset(2); | |
382 | show_in_offset(3); | |
383 | limit_in_offset(3); | |
384 | show_in_offset(4); | |
385 | limit_in_offset(4); | |
386 | show_in_offset(5); | |
387 | limit_in_offset(5); | |
388 | show_in_offset(6); | |
389 | limit_in_offset(6); | |
390 | show_in_offset(7); | |
391 | limit_in_offset(7); | |
392 | show_in_offset(8); | |
393 | ||
394 | /* 3 temperatures */ | |
20ad93d4 JD |
395 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
396 | char *buf) | |
1da177e4 | 397 | { |
20ad93d4 JD |
398 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
399 | int nr = sensor_attr->index; | |
400 | ||
1da177e4 LT |
401 | struct it87_data *data = it87_update_device(dev); |
402 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
403 | } | |
20ad93d4 JD |
404 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
405 | char *buf) | |
1da177e4 | 406 | { |
20ad93d4 JD |
407 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
408 | int nr = sensor_attr->index; | |
409 | ||
1da177e4 LT |
410 | struct it87_data *data = it87_update_device(dev); |
411 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
412 | } | |
20ad93d4 JD |
413 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
414 | char *buf) | |
1da177e4 | 415 | { |
20ad93d4 JD |
416 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
417 | int nr = sensor_attr->index; | |
418 | ||
1da177e4 LT |
419 | struct it87_data *data = it87_update_device(dev); |
420 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); | |
421 | } | |
20ad93d4 JD |
422 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
423 | const char *buf, size_t count) | |
1da177e4 | 424 | { |
20ad93d4 JD |
425 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
426 | int nr = sensor_attr->index; | |
427 | ||
b74f3fdd | 428 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
429 | int val = simple_strtol(buf, NULL, 10); |
430 | ||
9a61bf63 | 431 | mutex_lock(&data->update_lock); |
1da177e4 | 432 | data->temp_high[nr] = TEMP_TO_REG(val); |
b74f3fdd | 433 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
9a61bf63 | 434 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
435 | return count; |
436 | } | |
20ad93d4 JD |
437 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
438 | const char *buf, size_t count) | |
1da177e4 | 439 | { |
20ad93d4 JD |
440 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
441 | int nr = sensor_attr->index; | |
442 | ||
b74f3fdd | 443 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
444 | int val = simple_strtol(buf, NULL, 10); |
445 | ||
9a61bf63 | 446 | mutex_lock(&data->update_lock); |
1da177e4 | 447 | data->temp_low[nr] = TEMP_TO_REG(val); |
b74f3fdd | 448 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
9a61bf63 | 449 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
450 | return count; |
451 | } | |
452 | #define show_temp_offset(offset) \ | |
20ad93d4 JD |
453 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
454 | show_temp, NULL, offset - 1); \ | |
455 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
456 | show_temp_max, set_temp_max, offset - 1); \ | |
457 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
458 | show_temp_min, set_temp_min, offset - 1); | |
1da177e4 LT |
459 | |
460 | show_temp_offset(1); | |
461 | show_temp_offset(2); | |
462 | show_temp_offset(3); | |
463 | ||
20ad93d4 JD |
464 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
465 | char *buf) | |
1da177e4 | 466 | { |
20ad93d4 JD |
467 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
468 | int nr = sensor_attr->index; | |
469 | ||
1da177e4 LT |
470 | struct it87_data *data = it87_update_device(dev); |
471 | u8 reg = data->sensor; /* In case the value is updated while we use it */ | |
472 | ||
473 | if (reg & (1 << nr)) | |
474 | return sprintf(buf, "3\n"); /* thermal diode */ | |
475 | if (reg & (8 << nr)) | |
476 | return sprintf(buf, "2\n"); /* thermistor */ | |
477 | return sprintf(buf, "0\n"); /* disabled */ | |
478 | } | |
20ad93d4 JD |
479 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
480 | const char *buf, size_t count) | |
1da177e4 | 481 | { |
20ad93d4 JD |
482 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
483 | int nr = sensor_attr->index; | |
484 | ||
b74f3fdd | 485 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
486 | int val = simple_strtol(buf, NULL, 10); |
487 | ||
9a61bf63 | 488 | mutex_lock(&data->update_lock); |
1da177e4 LT |
489 | |
490 | data->sensor &= ~(1 << nr); | |
491 | data->sensor &= ~(8 << nr); | |
492 | /* 3 = thermal diode; 2 = thermistor; 0 = disabled */ | |
493 | if (val == 3) | |
494 | data->sensor |= 1 << nr; | |
495 | else if (val == 2) | |
496 | data->sensor |= 8 << nr; | |
497 | else if (val != 0) { | |
9a61bf63 | 498 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
499 | return -EINVAL; |
500 | } | |
b74f3fdd | 501 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
9a61bf63 | 502 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
503 | return count; |
504 | } | |
505 | #define show_sensor_offset(offset) \ | |
20ad93d4 JD |
506 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
507 | show_sensor, set_sensor, offset - 1); | |
1da177e4 LT |
508 | |
509 | show_sensor_offset(1); | |
510 | show_sensor_offset(2); | |
511 | show_sensor_offset(3); | |
512 | ||
513 | /* 3 Fans */ | |
20ad93d4 JD |
514 | static ssize_t show_fan(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", FAN_FROM_REG(data->fan[nr], | |
522 | DIV_FROM_REG(data->fan_div[nr]))); | |
523 | } | |
20ad93d4 JD |
524 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
525 | char *buf) | |
1da177e4 | 526 | { |
20ad93d4 JD |
527 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
528 | int nr = sensor_attr->index; | |
529 | ||
1da177e4 LT |
530 | struct it87_data *data = it87_update_device(dev); |
531 | return sprintf(buf,"%d\n", | |
532 | FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); | |
533 | } | |
20ad93d4 JD |
534 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
535 | char *buf) | |
1da177e4 | 536 | { |
20ad93d4 JD |
537 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
538 | int nr = sensor_attr->index; | |
539 | ||
1da177e4 LT |
540 | struct it87_data *data = it87_update_device(dev); |
541 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
542 | } | |
20ad93d4 JD |
543 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, |
544 | char *buf) | |
1da177e4 | 545 | { |
20ad93d4 JD |
546 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
547 | int nr = sensor_attr->index; | |
548 | ||
1da177e4 LT |
549 | struct it87_data *data = it87_update_device(dev); |
550 | return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0); | |
551 | } | |
20ad93d4 JD |
552 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
553 | char *buf) | |
1da177e4 | 554 | { |
20ad93d4 JD |
555 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
556 | int nr = sensor_attr->index; | |
557 | ||
1da177e4 LT |
558 | struct it87_data *data = it87_update_device(dev); |
559 | return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]); | |
560 | } | |
f8d0c19a JD |
561 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
562 | char *buf) | |
563 | { | |
564 | struct it87_data *data = it87_update_device(dev); | |
565 | int index = (data->fan_ctl >> 4) & 0x07; | |
566 | ||
567 | return sprintf(buf, "%u\n", pwm_freq[index]); | |
568 | } | |
20ad93d4 JD |
569 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
570 | const char *buf, size_t count) | |
1da177e4 | 571 | { |
20ad93d4 JD |
572 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
573 | int nr = sensor_attr->index; | |
574 | ||
b74f3fdd | 575 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 | 576 | int val = simple_strtol(buf, NULL, 10); |
7f999aa7 | 577 | u8 reg; |
1da177e4 | 578 | |
9a61bf63 | 579 | mutex_lock(&data->update_lock); |
b74f3fdd | 580 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
07eab46d JD |
581 | switch (nr) { |
582 | case 0: data->fan_div[nr] = reg & 0x07; break; | |
583 | case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break; | |
584 | case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break; | |
585 | } | |
586 | ||
1da177e4 | 587 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
c7f1f716 | 588 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
9a61bf63 | 589 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
590 | return count; |
591 | } | |
20ad93d4 JD |
592 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
593 | const char *buf, size_t count) | |
1da177e4 | 594 | { |
20ad93d4 JD |
595 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
596 | int nr = sensor_attr->index; | |
597 | ||
b74f3fdd | 598 | struct it87_data *data = dev_get_drvdata(dev); |
b9e349f7 | 599 | unsigned long val = simple_strtoul(buf, NULL, 10); |
8ab4ec3e | 600 | int min; |
1da177e4 LT |
601 | u8 old; |
602 | ||
9a61bf63 | 603 | mutex_lock(&data->update_lock); |
b74f3fdd | 604 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
1da177e4 | 605 | |
8ab4ec3e JD |
606 | /* Save fan min limit */ |
607 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
1da177e4 LT |
608 | |
609 | switch (nr) { | |
610 | case 0: | |
611 | case 1: | |
612 | data->fan_div[nr] = DIV_TO_REG(val); | |
613 | break; | |
614 | case 2: | |
615 | if (val < 8) | |
616 | data->fan_div[nr] = 1; | |
617 | else | |
618 | data->fan_div[nr] = 3; | |
619 | } | |
620 | val = old & 0x80; | |
621 | val |= (data->fan_div[0] & 0x07); | |
622 | val |= (data->fan_div[1] & 0x07) << 3; | |
623 | if (data->fan_div[2] == 3) | |
624 | val |= 0x1 << 6; | |
b74f3fdd | 625 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
1da177e4 | 626 | |
8ab4ec3e JD |
627 | /* Restore fan min limit */ |
628 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
c7f1f716 | 629 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
8ab4ec3e | 630 | |
9a61bf63 | 631 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
632 | return count; |
633 | } | |
20ad93d4 JD |
634 | static ssize_t set_pwm_enable(struct device *dev, |
635 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 636 | { |
20ad93d4 JD |
637 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
638 | int nr = sensor_attr->index; | |
639 | ||
b74f3fdd | 640 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
641 | int val = simple_strtol(buf, NULL, 10); |
642 | ||
9a61bf63 | 643 | mutex_lock(&data->update_lock); |
1da177e4 LT |
644 | |
645 | if (val == 0) { | |
646 | int tmp; | |
647 | /* make sure the fan is on when in on/off mode */ | |
b74f3fdd | 648 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
649 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); | |
1da177e4 LT |
650 | /* set on/off mode */ |
651 | data->fan_main_ctrl &= ~(1 << nr); | |
b74f3fdd | 652 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
1da177e4 LT |
653 | } else if (val == 1) { |
654 | /* set SmartGuardian mode */ | |
655 | data->fan_main_ctrl |= (1 << nr); | |
b74f3fdd | 656 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
1da177e4 | 657 | /* set saved pwm value, clear FAN_CTLX PWM mode bit */ |
b74f3fdd | 658 | it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); |
1da177e4 | 659 | } else { |
9a61bf63 | 660 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
661 | return -EINVAL; |
662 | } | |
663 | ||
9a61bf63 | 664 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
665 | return count; |
666 | } | |
20ad93d4 JD |
667 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
668 | const char *buf, size_t count) | |
1da177e4 | 669 | { |
20ad93d4 JD |
670 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
671 | int nr = sensor_attr->index; | |
672 | ||
b74f3fdd | 673 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
674 | int val = simple_strtol(buf, NULL, 10); |
675 | ||
676 | if (val < 0 || val > 255) | |
677 | return -EINVAL; | |
678 | ||
9a61bf63 | 679 | mutex_lock(&data->update_lock); |
1da177e4 LT |
680 | data->manual_pwm_ctl[nr] = val; |
681 | if (data->fan_main_ctrl & (1 << nr)) | |
b74f3fdd | 682 | it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); |
9a61bf63 | 683 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
684 | return count; |
685 | } | |
f8d0c19a JD |
686 | static ssize_t set_pwm_freq(struct device *dev, |
687 | struct device_attribute *attr, const char *buf, size_t count) | |
688 | { | |
b74f3fdd | 689 | struct it87_data *data = dev_get_drvdata(dev); |
f8d0c19a JD |
690 | unsigned long val = simple_strtoul(buf, NULL, 10); |
691 | int i; | |
692 | ||
693 | /* Search for the nearest available frequency */ | |
694 | for (i = 0; i < 7; i++) { | |
695 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) | |
696 | break; | |
697 | } | |
698 | ||
699 | mutex_lock(&data->update_lock); | |
b74f3fdd | 700 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
f8d0c19a | 701 | data->fan_ctl |= i << 4; |
b74f3fdd | 702 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
f8d0c19a JD |
703 | mutex_unlock(&data->update_lock); |
704 | ||
705 | return count; | |
706 | } | |
1da177e4 | 707 | |
20ad93d4 JD |
708 | #define show_fan_offset(offset) \ |
709 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
710 | show_fan, NULL, offset - 1); \ | |
711 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
712 | show_fan_min, set_fan_min, offset - 1); \ | |
713 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
714 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
715 | |
716 | show_fan_offset(1); | |
717 | show_fan_offset(2); | |
718 | show_fan_offset(3); | |
719 | ||
720 | #define show_pwm_offset(offset) \ | |
20ad93d4 JD |
721 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
722 | show_pwm_enable, set_pwm_enable, offset - 1); \ | |
723 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
f8d0c19a JD |
724 | show_pwm, set_pwm, offset - 1); \ |
725 | static DEVICE_ATTR(pwm##offset##_freq, \ | |
726 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ | |
727 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); | |
1da177e4 LT |
728 | |
729 | show_pwm_offset(1); | |
730 | show_pwm_offset(2); | |
731 | show_pwm_offset(3); | |
732 | ||
17d648bf JD |
733 | /* A different set of callbacks for 16-bit fans */ |
734 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, | |
735 | char *buf) | |
736 | { | |
737 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
738 | int nr = sensor_attr->index; | |
739 | struct it87_data *data = it87_update_device(dev); | |
740 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); | |
741 | } | |
742 | ||
743 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, | |
744 | char *buf) | |
745 | { | |
746 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
747 | int nr = sensor_attr->index; | |
748 | struct it87_data *data = it87_update_device(dev); | |
749 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); | |
750 | } | |
751 | ||
752 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, | |
753 | const char *buf, size_t count) | |
754 | { | |
755 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
756 | int nr = sensor_attr->index; | |
b74f3fdd | 757 | struct it87_data *data = dev_get_drvdata(dev); |
17d648bf JD |
758 | int val = simple_strtol(buf, NULL, 10); |
759 | ||
760 | mutex_lock(&data->update_lock); | |
761 | data->fan_min[nr] = FAN16_TO_REG(val); | |
c7f1f716 | 762 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
17d648bf | 763 | data->fan_min[nr] & 0xff); |
c7f1f716 | 764 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
17d648bf JD |
765 | data->fan_min[nr] >> 8); |
766 | mutex_unlock(&data->update_lock); | |
767 | return count; | |
768 | } | |
769 | ||
770 | /* We want to use the same sysfs file names as 8-bit fans, but we need | |
771 | different variable names, so we have to use SENSOR_ATTR instead of | |
772 | SENSOR_DEVICE_ATTR. */ | |
773 | #define show_fan16_offset(offset) \ | |
774 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ | |
775 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ | |
776 | show_fan16, NULL, offset - 1); \ | |
777 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ | |
778 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
779 | show_fan16_min, set_fan16_min, offset - 1) | |
780 | ||
781 | show_fan16_offset(1); | |
782 | show_fan16_offset(2); | |
783 | show_fan16_offset(3); | |
c7f1f716 JD |
784 | show_fan16_offset(4); |
785 | show_fan16_offset(5); | |
17d648bf | 786 | |
1da177e4 | 787 | /* Alarms */ |
30f74292 | 788 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
789 | { |
790 | struct it87_data *data = it87_update_device(dev); | |
68188ba7 | 791 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 | 792 | } |
1d66c64c | 793 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 794 | |
0124dd78 JD |
795 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
796 | char *buf) | |
797 | { | |
798 | int bitnr = to_sensor_dev_attr(attr)->index; | |
799 | struct it87_data *data = it87_update_device(dev); | |
800 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
801 | } | |
802 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); | |
803 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); | |
804 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); | |
805 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
806 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); | |
807 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); | |
808 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); | |
809 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); | |
810 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
811 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
812 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); | |
813 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); | |
814 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); | |
815 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); | |
816 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); | |
817 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); | |
818 | ||
1da177e4 | 819 | static ssize_t |
30f74292 | 820 | show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 821 | { |
90d6619a | 822 | struct it87_data *data = dev_get_drvdata(dev); |
a7be58a1 | 823 | return sprintf(buf, "%u\n", data->vrm); |
1da177e4 LT |
824 | } |
825 | static ssize_t | |
30f74292 | 826 | store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 827 | { |
b74f3fdd | 828 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
829 | u32 val; |
830 | ||
831 | val = simple_strtoul(buf, NULL, 10); | |
832 | data->vrm = val; | |
833 | ||
834 | return count; | |
835 | } | |
836 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
1da177e4 LT |
837 | |
838 | static ssize_t | |
30f74292 | 839 | show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
840 | { |
841 | struct it87_data *data = it87_update_device(dev); | |
842 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
843 | } | |
844 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
87808be4 | 845 | |
b74f3fdd | 846 | static ssize_t show_name(struct device *dev, struct device_attribute |
847 | *devattr, char *buf) | |
848 | { | |
849 | struct it87_data *data = dev_get_drvdata(dev); | |
850 | return sprintf(buf, "%s\n", data->name); | |
851 | } | |
852 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
853 | ||
87808be4 JD |
854 | static struct attribute *it87_attributes[] = { |
855 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
856 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
857 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
858 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
859 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
860 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
861 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
862 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
863 | &sensor_dev_attr_in8_input.dev_attr.attr, | |
864 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
865 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
866 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
867 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
868 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
869 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
870 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
871 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
872 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
873 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
874 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
875 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
876 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
877 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
878 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
879 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
0124dd78 JD |
880 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
881 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
882 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
883 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
884 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
885 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
886 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
887 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
87808be4 JD |
888 | |
889 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
890 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
891 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
892 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
893 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
894 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
895 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
896 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
897 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
898 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
899 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
900 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
0124dd78 JD |
901 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
902 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
903 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
87808be4 JD |
904 | |
905 | &dev_attr_alarms.attr, | |
b74f3fdd | 906 | &dev_attr_name.attr, |
87808be4 JD |
907 | NULL |
908 | }; | |
909 | ||
910 | static const struct attribute_group it87_group = { | |
911 | .attrs = it87_attributes, | |
912 | }; | |
913 | ||
914 | static struct attribute *it87_attributes_opt[] = { | |
915 | &sensor_dev_attr_fan1_input16.dev_attr.attr, | |
916 | &sensor_dev_attr_fan1_min16.dev_attr.attr, | |
917 | &sensor_dev_attr_fan2_input16.dev_attr.attr, | |
918 | &sensor_dev_attr_fan2_min16.dev_attr.attr, | |
919 | &sensor_dev_attr_fan3_input16.dev_attr.attr, | |
920 | &sensor_dev_attr_fan3_min16.dev_attr.attr, | |
c7f1f716 JD |
921 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
922 | &sensor_dev_attr_fan4_min16.dev_attr.attr, | |
923 | &sensor_dev_attr_fan5_input16.dev_attr.attr, | |
924 | &sensor_dev_attr_fan5_min16.dev_attr.attr, | |
87808be4 JD |
925 | |
926 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
927 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
928 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
929 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
930 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
931 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
932 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
933 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
934 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
935 | ||
0124dd78 JD |
936 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
937 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
938 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
939 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
940 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, | |
941 | ||
87808be4 JD |
942 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
943 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
944 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
945 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
946 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
947 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
d5b0b5d6 JD |
948 | &dev_attr_pwm1_freq.attr, |
949 | &dev_attr_pwm2_freq.attr, | |
950 | &dev_attr_pwm3_freq.attr, | |
87808be4 JD |
951 | |
952 | &dev_attr_vrm.attr, | |
953 | &dev_attr_cpu0_vid.attr, | |
954 | NULL | |
955 | }; | |
956 | ||
957 | static const struct attribute_group it87_group_opt = { | |
958 | .attrs = it87_attributes_opt, | |
959 | }; | |
1da177e4 | 960 | |
2d8672c5 | 961 | /* SuperIO detection - will change isa_address if a chip is found */ |
b74f3fdd | 962 | static int __init it87_find(unsigned short *address, |
963 | struct it87_sio_data *sio_data) | |
1da177e4 LT |
964 | { |
965 | int err = -ENODEV; | |
b74f3fdd | 966 | u16 chip_type; |
1da177e4 LT |
967 | |
968 | superio_enter(); | |
67b671bc | 969 | chip_type = force_id ? force_id : superio_inw(DEVID); |
b74f3fdd | 970 | |
971 | switch (chip_type) { | |
972 | case IT8705F_DEVID: | |
973 | sio_data->type = it87; | |
974 | break; | |
975 | case IT8712F_DEVID: | |
976 | sio_data->type = it8712; | |
977 | break; | |
978 | case IT8716F_DEVID: | |
979 | case IT8726F_DEVID: | |
980 | sio_data->type = it8716; | |
981 | break; | |
982 | case IT8718F_DEVID: | |
983 | sio_data->type = it8718; | |
984 | break; | |
985 | case 0xffff: /* No device at all */ | |
986 | goto exit; | |
987 | default: | |
988 | pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n", | |
989 | chip_type); | |
990 | goto exit; | |
991 | } | |
1da177e4 | 992 | |
87673dd7 | 993 | superio_select(PME); |
1da177e4 LT |
994 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
995 | pr_info("it87: Device not activated, skipping\n"); | |
996 | goto exit; | |
997 | } | |
998 | ||
999 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); | |
1000 | if (*address == 0) { | |
1001 | pr_info("it87: Base address not set, skipping\n"); | |
1002 | goto exit; | |
1003 | } | |
1004 | ||
1005 | err = 0; | |
0475169c | 1006 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
1da177e4 | 1007 | pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", |
0475169c | 1008 | chip_type, *address, sio_data->revision); |
1da177e4 | 1009 | |
87673dd7 JD |
1010 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
1011 | if (chip_type != IT8705F_DEVID) { | |
1012 | int reg; | |
1013 | ||
1014 | superio_select(GPIO); | |
1015 | if (chip_type == it8718) | |
b74f3fdd | 1016 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
87673dd7 JD |
1017 | |
1018 | reg = superio_inb(IT87_SIO_PINX2_REG); | |
1019 | if (reg & (1 << 0)) | |
1020 | pr_info("it87: in3 is VCC (+5V)\n"); | |
1021 | if (reg & (1 << 1)) | |
1022 | pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); | |
1023 | } | |
1024 | ||
1da177e4 LT |
1025 | exit: |
1026 | superio_exit(); | |
1027 | return err; | |
1028 | } | |
1029 | ||
b74f3fdd | 1030 | static int __devinit it87_probe(struct platform_device *pdev) |
1da177e4 | 1031 | { |
1da177e4 | 1032 | struct it87_data *data; |
b74f3fdd | 1033 | struct resource *res; |
1034 | struct device *dev = &pdev->dev; | |
1035 | struct it87_sio_data *sio_data = dev->platform_data; | |
1da177e4 | 1036 | int err = 0; |
1da177e4 | 1037 | int enable_pwm_interface; |
b74f3fdd | 1038 | static const char *names[] = { |
1039 | "it87", | |
1040 | "it8712", | |
1041 | "it8716", | |
1042 | "it8718", | |
1043 | }; | |
1044 | ||
1045 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
87b4b663 | 1046 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
b74f3fdd | 1047 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1048 | (unsigned long)res->start, | |
87b4b663 | 1049 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
8e9afcbb JD |
1050 | err = -EBUSY; |
1051 | goto ERROR0; | |
1052 | } | |
1da177e4 | 1053 | |
ba9c2e8d | 1054 | if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) { |
1da177e4 LT |
1055 | err = -ENOMEM; |
1056 | goto ERROR1; | |
1057 | } | |
1da177e4 | 1058 | |
b74f3fdd | 1059 | data->addr = res->start; |
1060 | data->type = sio_data->type; | |
0475169c | 1061 | data->revision = sio_data->revision; |
b74f3fdd | 1062 | data->name = names[sio_data->type]; |
1da177e4 LT |
1063 | |
1064 | /* Now, we do the remaining detection. */ | |
b74f3fdd | 1065 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
1066 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { | |
8e9afcbb JD |
1067 | err = -ENODEV; |
1068 | goto ERROR2; | |
1da177e4 LT |
1069 | } |
1070 | ||
b74f3fdd | 1071 | platform_set_drvdata(pdev, data); |
1da177e4 | 1072 | |
9a61bf63 | 1073 | mutex_init(&data->update_lock); |
1da177e4 | 1074 | |
1da177e4 | 1075 | /* Check PWM configuration */ |
b74f3fdd | 1076 | enable_pwm_interface = it87_check_pwm(dev); |
1da177e4 LT |
1077 | |
1078 | /* Initialize the IT87 chip */ | |
b74f3fdd | 1079 | it87_init_device(pdev); |
1da177e4 LT |
1080 | |
1081 | /* Register sysfs hooks */ | |
b74f3fdd | 1082 | if ((err = sysfs_create_group(&dev->kobj, &it87_group))) |
1083 | goto ERROR2; | |
17d648bf | 1084 | |
9060f8bd | 1085 | /* Do not create fan files for disabled fans */ |
0475169c | 1086 | if (has_16bit_fans(data)) { |
87673dd7 | 1087 | /* 16-bit tachometers */ |
9060f8bd | 1088 | if (data->has_fan & (1 << 0)) { |
b74f3fdd | 1089 | if ((err = device_create_file(dev, |
87808be4 | 1090 | &sensor_dev_attr_fan1_input16.dev_attr)) |
b74f3fdd | 1091 | || (err = device_create_file(dev, |
0124dd78 JD |
1092 | &sensor_dev_attr_fan1_min16.dev_attr)) |
1093 | || (err = device_create_file(dev, | |
1094 | &sensor_dev_attr_fan1_alarm.dev_attr))) | |
87808be4 | 1095 | goto ERROR4; |
9060f8bd JD |
1096 | } |
1097 | if (data->has_fan & (1 << 1)) { | |
b74f3fdd | 1098 | if ((err = device_create_file(dev, |
87808be4 | 1099 | &sensor_dev_attr_fan2_input16.dev_attr)) |
b74f3fdd | 1100 | || (err = device_create_file(dev, |
0124dd78 JD |
1101 | &sensor_dev_attr_fan2_min16.dev_attr)) |
1102 | || (err = device_create_file(dev, | |
1103 | &sensor_dev_attr_fan2_alarm.dev_attr))) | |
87808be4 | 1104 | goto ERROR4; |
9060f8bd JD |
1105 | } |
1106 | if (data->has_fan & (1 << 2)) { | |
b74f3fdd | 1107 | if ((err = device_create_file(dev, |
87808be4 | 1108 | &sensor_dev_attr_fan3_input16.dev_attr)) |
b74f3fdd | 1109 | || (err = device_create_file(dev, |
0124dd78 JD |
1110 | &sensor_dev_attr_fan3_min16.dev_attr)) |
1111 | || (err = device_create_file(dev, | |
1112 | &sensor_dev_attr_fan3_alarm.dev_attr))) | |
87808be4 | 1113 | goto ERROR4; |
9060f8bd | 1114 | } |
c7f1f716 JD |
1115 | if (data->has_fan & (1 << 3)) { |
1116 | if ((err = device_create_file(dev, | |
1117 | &sensor_dev_attr_fan4_input16.dev_attr)) | |
1118 | || (err = device_create_file(dev, | |
0124dd78 JD |
1119 | &sensor_dev_attr_fan4_min16.dev_attr)) |
1120 | || (err = device_create_file(dev, | |
1121 | &sensor_dev_attr_fan4_alarm.dev_attr))) | |
c7f1f716 JD |
1122 | goto ERROR4; |
1123 | } | |
1124 | if (data->has_fan & (1 << 4)) { | |
1125 | if ((err = device_create_file(dev, | |
1126 | &sensor_dev_attr_fan5_input16.dev_attr)) | |
1127 | || (err = device_create_file(dev, | |
0124dd78 JD |
1128 | &sensor_dev_attr_fan5_min16.dev_attr)) |
1129 | || (err = device_create_file(dev, | |
1130 | &sensor_dev_attr_fan5_alarm.dev_attr))) | |
c7f1f716 JD |
1131 | goto ERROR4; |
1132 | } | |
17d648bf | 1133 | } else { |
87673dd7 | 1134 | /* 8-bit tachometers with clock divider */ |
9060f8bd | 1135 | if (data->has_fan & (1 << 0)) { |
b74f3fdd | 1136 | if ((err = device_create_file(dev, |
87808be4 | 1137 | &sensor_dev_attr_fan1_input.dev_attr)) |
b74f3fdd | 1138 | || (err = device_create_file(dev, |
87808be4 | 1139 | &sensor_dev_attr_fan1_min.dev_attr)) |
b74f3fdd | 1140 | || (err = device_create_file(dev, |
0124dd78 JD |
1141 | &sensor_dev_attr_fan1_div.dev_attr)) |
1142 | || (err = device_create_file(dev, | |
1143 | &sensor_dev_attr_fan1_alarm.dev_attr))) | |
87808be4 | 1144 | goto ERROR4; |
9060f8bd JD |
1145 | } |
1146 | if (data->has_fan & (1 << 1)) { | |
b74f3fdd | 1147 | if ((err = device_create_file(dev, |
87808be4 | 1148 | &sensor_dev_attr_fan2_input.dev_attr)) |
b74f3fdd | 1149 | || (err = device_create_file(dev, |
87808be4 | 1150 | &sensor_dev_attr_fan2_min.dev_attr)) |
b74f3fdd | 1151 | || (err = device_create_file(dev, |
0124dd78 JD |
1152 | &sensor_dev_attr_fan2_div.dev_attr)) |
1153 | || (err = device_create_file(dev, | |
1154 | &sensor_dev_attr_fan2_alarm.dev_attr))) | |
87808be4 | 1155 | goto ERROR4; |
9060f8bd JD |
1156 | } |
1157 | if (data->has_fan & (1 << 2)) { | |
b74f3fdd | 1158 | if ((err = device_create_file(dev, |
87808be4 | 1159 | &sensor_dev_attr_fan3_input.dev_attr)) |
b74f3fdd | 1160 | || (err = device_create_file(dev, |
87808be4 | 1161 | &sensor_dev_attr_fan3_min.dev_attr)) |
b74f3fdd | 1162 | || (err = device_create_file(dev, |
0124dd78 JD |
1163 | &sensor_dev_attr_fan3_div.dev_attr)) |
1164 | || (err = device_create_file(dev, | |
1165 | &sensor_dev_attr_fan3_alarm.dev_attr))) | |
87808be4 | 1166 | goto ERROR4; |
9060f8bd | 1167 | } |
17d648bf JD |
1168 | } |
1169 | ||
1da177e4 | 1170 | if (enable_pwm_interface) { |
b74f3fdd | 1171 | if ((err = device_create_file(dev, |
87808be4 | 1172 | &sensor_dev_attr_pwm1_enable.dev_attr)) |
b74f3fdd | 1173 | || (err = device_create_file(dev, |
87808be4 | 1174 | &sensor_dev_attr_pwm2_enable.dev_attr)) |
b74f3fdd | 1175 | || (err = device_create_file(dev, |
87808be4 | 1176 | &sensor_dev_attr_pwm3_enable.dev_attr)) |
b74f3fdd | 1177 | || (err = device_create_file(dev, |
87808be4 | 1178 | &sensor_dev_attr_pwm1.dev_attr)) |
b74f3fdd | 1179 | || (err = device_create_file(dev, |
87808be4 | 1180 | &sensor_dev_attr_pwm2.dev_attr)) |
b74f3fdd | 1181 | || (err = device_create_file(dev, |
f8d0c19a | 1182 | &sensor_dev_attr_pwm3.dev_attr)) |
b74f3fdd | 1183 | || (err = device_create_file(dev, |
f8d0c19a | 1184 | &dev_attr_pwm1_freq)) |
b74f3fdd | 1185 | || (err = device_create_file(dev, |
f8d0c19a | 1186 | &dev_attr_pwm2_freq)) |
b74f3fdd | 1187 | || (err = device_create_file(dev, |
f8d0c19a | 1188 | &dev_attr_pwm3_freq))) |
87808be4 | 1189 | goto ERROR4; |
1da177e4 LT |
1190 | } |
1191 | ||
87673dd7 JD |
1192 | if (data->type == it8712 || data->type == it8716 |
1193 | || data->type == it8718) { | |
303760b4 | 1194 | data->vrm = vid_which_vrm(); |
87673dd7 | 1195 | /* VID reading from Super-I/O config space if available */ |
b74f3fdd | 1196 | data->vid = sio_data->vid_value; |
1197 | if ((err = device_create_file(dev, | |
87808be4 | 1198 | &dev_attr_vrm)) |
b74f3fdd | 1199 | || (err = device_create_file(dev, |
87808be4 JD |
1200 | &dev_attr_cpu0_vid))) |
1201 | goto ERROR4; | |
1202 | } | |
1203 | ||
1beeffe4 TJ |
1204 | data->hwmon_dev = hwmon_device_register(dev); |
1205 | if (IS_ERR(data->hwmon_dev)) { | |
1206 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 | 1207 | goto ERROR4; |
1da177e4 LT |
1208 | } |
1209 | ||
1210 | return 0; | |
1211 | ||
87808be4 | 1212 | ERROR4: |
b74f3fdd | 1213 | sysfs_remove_group(&dev->kobj, &it87_group); |
1214 | sysfs_remove_group(&dev->kobj, &it87_group_opt); | |
1da177e4 | 1215 | ERROR2: |
b74f3fdd | 1216 | platform_set_drvdata(pdev, NULL); |
1da177e4 LT |
1217 | kfree(data); |
1218 | ERROR1: | |
87b4b663 | 1219 | release_region(res->start, IT87_EC_EXTENT); |
1da177e4 LT |
1220 | ERROR0: |
1221 | return err; | |
1222 | } | |
1223 | ||
b74f3fdd | 1224 | static int __devexit it87_remove(struct platform_device *pdev) |
1da177e4 | 1225 | { |
b74f3fdd | 1226 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 | 1227 | |
1beeffe4 | 1228 | hwmon_device_unregister(data->hwmon_dev); |
b74f3fdd | 1229 | sysfs_remove_group(&pdev->dev.kobj, &it87_group); |
1230 | sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt); | |
943b0830 | 1231 | |
87b4b663 | 1232 | release_region(data->addr, IT87_EC_EXTENT); |
b74f3fdd | 1233 | platform_set_drvdata(pdev, NULL); |
943b0830 | 1234 | kfree(data); |
1da177e4 LT |
1235 | |
1236 | return 0; | |
1237 | } | |
1238 | ||
7f999aa7 | 1239 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1240 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1241 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1242 | static int it87_read_value(struct it87_data *data, u8 reg) |
1da177e4 | 1243 | { |
b74f3fdd | 1244 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1245 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1246 | } |
1247 | ||
7f999aa7 | 1248 | /* Must be called with data->update_lock held, except during initialization. |
1da177e4 LT |
1249 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
1250 | would slow down the IT87 access and should not be necessary. */ | |
b74f3fdd | 1251 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
1da177e4 | 1252 | { |
b74f3fdd | 1253 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
1254 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); | |
1da177e4 LT |
1255 | } |
1256 | ||
1257 | /* Return 1 if and only if the PWM interface is safe to use */ | |
b74f3fdd | 1258 | static int __devinit it87_check_pwm(struct device *dev) |
1da177e4 | 1259 | { |
b74f3fdd | 1260 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1261 | /* Some BIOSes fail to correctly configure the IT87 fans. All fans off |
1262 | * and polarity set to active low is sign that this is the case so we | |
1263 | * disable pwm control to protect the user. */ | |
b74f3fdd | 1264 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
1da177e4 LT |
1265 | if ((tmp & 0x87) == 0) { |
1266 | if (fix_pwm_polarity) { | |
1267 | /* The user asks us to attempt a chip reconfiguration. | |
1268 | * This means switching to active high polarity and | |
1269 | * inverting all fan speed values. */ | |
1270 | int i; | |
1271 | u8 pwm[3]; | |
1272 | ||
1273 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1274 | pwm[i] = it87_read_value(data, |
1da177e4 LT |
1275 | IT87_REG_PWM(i)); |
1276 | ||
1277 | /* If any fan is in automatic pwm mode, the polarity | |
1278 | * might be correct, as suspicious as it seems, so we | |
1279 | * better don't change anything (but still disable the | |
1280 | * PWM interface). */ | |
1281 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { | |
b74f3fdd | 1282 | dev_info(dev, "Reconfiguring PWM to " |
1da177e4 | 1283 | "active high polarity\n"); |
b74f3fdd | 1284 | it87_write_value(data, IT87_REG_FAN_CTL, |
1da177e4 LT |
1285 | tmp | 0x87); |
1286 | for (i = 0; i < 3; i++) | |
b74f3fdd | 1287 | it87_write_value(data, |
1da177e4 LT |
1288 | IT87_REG_PWM(i), |
1289 | 0x7f & ~pwm[i]); | |
1290 | return 1; | |
1291 | } | |
1292 | ||
b74f3fdd | 1293 | dev_info(dev, "PWM configuration is " |
1da177e4 LT |
1294 | "too broken to be fixed\n"); |
1295 | } | |
1296 | ||
b74f3fdd | 1297 | dev_info(dev, "Detected broken BIOS " |
1da177e4 LT |
1298 | "defaults, disabling PWM interface\n"); |
1299 | return 0; | |
1300 | } else if (fix_pwm_polarity) { | |
b74f3fdd | 1301 | dev_info(dev, "PWM configuration looks " |
1da177e4 LT |
1302 | "sane, won't touch\n"); |
1303 | } | |
1304 | ||
1305 | return 1; | |
1306 | } | |
1307 | ||
1308 | /* Called when we have found a new IT87. */ | |
b74f3fdd | 1309 | static void __devinit it87_init_device(struct platform_device *pdev) |
1da177e4 | 1310 | { |
b74f3fdd | 1311 | struct it87_data *data = platform_get_drvdata(pdev); |
1da177e4 LT |
1312 | int tmp, i; |
1313 | ||
1314 | /* initialize to sane defaults: | |
1315 | * - if the chip is in manual pwm mode, this will be overwritten with | |
1316 | * the actual settings on the chip (so in this case, initialization | |
1317 | * is not needed) | |
1318 | * - if in automatic or on/off mode, we could switch to manual mode, | |
1319 | * read the registers and set manual_pwm_ctl accordingly, but currently | |
1320 | * this is not implemented, so we initialize to something sane */ | |
1321 | for (i = 0; i < 3; i++) { | |
1322 | data->manual_pwm_ctl[i] = 0xff; | |
1323 | } | |
1324 | ||
c5df9b7a JD |
1325 | /* Some chips seem to have default value 0xff for all limit |
1326 | * registers. For low voltage limits it makes no sense and triggers | |
1327 | * alarms, so change to 0 instead. For high temperature limits, it | |
1328 | * means -1 degree C, which surprisingly doesn't trigger an alarm, | |
1329 | * but is still confusing, so change to 127 degrees C. */ | |
1330 | for (i = 0; i < 8; i++) { | |
b74f3fdd | 1331 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
c5df9b7a | 1332 | if (tmp == 0xff) |
b74f3fdd | 1333 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
c5df9b7a JD |
1334 | } |
1335 | for (i = 0; i < 3; i++) { | |
b74f3fdd | 1336 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
c5df9b7a | 1337 | if (tmp == 0xff) |
b74f3fdd | 1338 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
c5df9b7a JD |
1339 | } |
1340 | ||
1da177e4 | 1341 | /* Check if temperature channnels are reset manually or by some reason */ |
b74f3fdd | 1342 | tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
1da177e4 LT |
1343 | if ((tmp & 0x3f) == 0) { |
1344 | /* Temp1,Temp3=thermistor; Temp2=thermal diode */ | |
1345 | tmp = (tmp & 0xc0) | 0x2a; | |
b74f3fdd | 1346 | it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp); |
1da177e4 LT |
1347 | } |
1348 | data->sensor = tmp; | |
1349 | ||
1350 | /* Check if voltage monitors are reset manually or by some reason */ | |
b74f3fdd | 1351 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
1da177e4 LT |
1352 | if ((tmp & 0xff) == 0) { |
1353 | /* Enable all voltage monitors */ | |
b74f3fdd | 1354 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
1da177e4 LT |
1355 | } |
1356 | ||
1357 | /* Check if tachometers are reset manually or by some reason */ | |
b74f3fdd | 1358 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
1da177e4 LT |
1359 | if ((data->fan_main_ctrl & 0x70) == 0) { |
1360 | /* Enable all fan tachometers */ | |
1361 | data->fan_main_ctrl |= 0x70; | |
b74f3fdd | 1362 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
1da177e4 | 1363 | } |
9060f8bd | 1364 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
1da177e4 | 1365 | |
17d648bf | 1366 | /* Set tachometers to 16-bit mode if needed */ |
0475169c | 1367 | if (has_16bit_fans(data)) { |
b74f3fdd | 1368 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
9060f8bd | 1369 | if (~tmp & 0x07 & data->has_fan) { |
b74f3fdd | 1370 | dev_dbg(&pdev->dev, |
17d648bf | 1371 | "Setting fan1-3 to 16-bit mode\n"); |
b74f3fdd | 1372 | it87_write_value(data, IT87_REG_FAN_16BIT, |
17d648bf JD |
1373 | tmp | 0x07); |
1374 | } | |
816d8c6a AP |
1375 | /* IT8705F only supports three fans. */ |
1376 | if (data->type != it87) { | |
1377 | if (tmp & (1 << 4)) | |
1378 | data->has_fan |= (1 << 3); /* fan4 enabled */ | |
1379 | if (tmp & (1 << 5)) | |
1380 | data->has_fan |= (1 << 4); /* fan5 enabled */ | |
1381 | } | |
17d648bf JD |
1382 | } |
1383 | ||
1da177e4 LT |
1384 | /* Set current fan mode registers and the default settings for the |
1385 | * other mode registers */ | |
1386 | for (i = 0; i < 3; i++) { | |
1387 | if (data->fan_main_ctrl & (1 << i)) { | |
1388 | /* pwm mode */ | |
b74f3fdd | 1389 | tmp = it87_read_value(data, IT87_REG_PWM(i)); |
1da177e4 LT |
1390 | if (tmp & 0x80) { |
1391 | /* automatic pwm - not yet implemented, but | |
1392 | * leave the settings made by the BIOS alone | |
1393 | * until a change is requested via the sysfs | |
1394 | * interface */ | |
1395 | } else { | |
1396 | /* manual pwm */ | |
1397 | data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp); | |
1398 | } | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | /* Start monitoring */ | |
b74f3fdd | 1403 | it87_write_value(data, IT87_REG_CONFIG, |
1404 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | |
1da177e4 LT |
1405 | | (update_vbat ? 0x41 : 0x01)); |
1406 | } | |
1407 | ||
1408 | static struct it87_data *it87_update_device(struct device *dev) | |
1409 | { | |
b74f3fdd | 1410 | struct it87_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
1411 | int i; |
1412 | ||
9a61bf63 | 1413 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1414 | |
1415 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1416 | || !data->valid) { | |
1417 | ||
1418 | if (update_vbat) { | |
1419 | /* Cleared after each update, so reenable. Value | |
1420 | returned by this read will be previous value */ | |
b74f3fdd | 1421 | it87_write_value(data, IT87_REG_CONFIG, |
1422 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); | |
1da177e4 LT |
1423 | } |
1424 | for (i = 0; i <= 7; i++) { | |
1425 | data->in[i] = | |
b74f3fdd | 1426 | it87_read_value(data, IT87_REG_VIN(i)); |
1da177e4 | 1427 | data->in_min[i] = |
b74f3fdd | 1428 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
1da177e4 | 1429 | data->in_max[i] = |
b74f3fdd | 1430 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
1da177e4 | 1431 | } |
3543a53f | 1432 | /* in8 (battery) has no limit registers */ |
1da177e4 | 1433 | data->in[8] = |
b74f3fdd | 1434 | it87_read_value(data, IT87_REG_VIN(8)); |
1da177e4 | 1435 | |
c7f1f716 | 1436 | for (i = 0; i < 5; i++) { |
9060f8bd JD |
1437 | /* Skip disabled fans */ |
1438 | if (!(data->has_fan & (1 << i))) | |
1439 | continue; | |
1440 | ||
1da177e4 | 1441 | data->fan_min[i] = |
c7f1f716 | 1442 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
b74f3fdd | 1443 | data->fan[i] = it87_read_value(data, |
c7f1f716 | 1444 | IT87_REG_FAN[i]); |
17d648bf | 1445 | /* Add high byte if in 16-bit mode */ |
0475169c | 1446 | if (has_16bit_fans(data)) { |
b74f3fdd | 1447 | data->fan[i] |= it87_read_value(data, |
c7f1f716 | 1448 | IT87_REG_FANX[i]) << 8; |
b74f3fdd | 1449 | data->fan_min[i] |= it87_read_value(data, |
c7f1f716 | 1450 | IT87_REG_FANX_MIN[i]) << 8; |
17d648bf | 1451 | } |
1da177e4 LT |
1452 | } |
1453 | for (i = 0; i < 3; i++) { | |
1454 | data->temp[i] = | |
b74f3fdd | 1455 | it87_read_value(data, IT87_REG_TEMP(i)); |
1da177e4 | 1456 | data->temp_high[i] = |
b74f3fdd | 1457 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
1da177e4 | 1458 | data->temp_low[i] = |
b74f3fdd | 1459 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
1da177e4 LT |
1460 | } |
1461 | ||
17d648bf | 1462 | /* Newer chips don't have clock dividers */ |
0475169c | 1463 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
b74f3fdd | 1464 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
17d648bf JD |
1465 | data->fan_div[0] = i & 0x07; |
1466 | data->fan_div[1] = (i >> 3) & 0x07; | |
1467 | data->fan_div[2] = (i & 0x40) ? 3 : 1; | |
1468 | } | |
1da177e4 LT |
1469 | |
1470 | data->alarms = | |
b74f3fdd | 1471 | it87_read_value(data, IT87_REG_ALARM1) | |
1472 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | | |
1473 | (it87_read_value(data, IT87_REG_ALARM3) << 16); | |
1474 | data->fan_main_ctrl = it87_read_value(data, | |
1475 | IT87_REG_FAN_MAIN_CTRL); | |
1476 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); | |
1477 | ||
1478 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); | |
0475169c AP |
1479 | /* The 8705 does not have VID capability. |
1480 | The 8718 does not use IT87_REG_VID for the same purpose. */ | |
17d648bf | 1481 | if (data->type == it8712 || data->type == it8716) { |
b74f3fdd | 1482 | data->vid = it87_read_value(data, IT87_REG_VID); |
17d648bf JD |
1483 | /* The older IT8712F revisions had only 5 VID pins, |
1484 | but we assume it is always safe to read 6 bits. */ | |
1485 | data->vid &= 0x3f; | |
1da177e4 LT |
1486 | } |
1487 | data->last_updated = jiffies; | |
1488 | data->valid = 1; | |
1489 | } | |
1490 | ||
9a61bf63 | 1491 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1492 | |
1493 | return data; | |
1494 | } | |
1495 | ||
b74f3fdd | 1496 | static int __init it87_device_add(unsigned short address, |
1497 | const struct it87_sio_data *sio_data) | |
1498 | { | |
1499 | struct resource res = { | |
87b4b663 BH |
1500 | .start = address + IT87_EC_OFFSET, |
1501 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, | |
b74f3fdd | 1502 | .name = DRVNAME, |
1503 | .flags = IORESOURCE_IO, | |
1504 | }; | |
1505 | int err; | |
1506 | ||
1507 | pdev = platform_device_alloc(DRVNAME, address); | |
1508 | if (!pdev) { | |
1509 | err = -ENOMEM; | |
1510 | printk(KERN_ERR DRVNAME ": Device allocation failed\n"); | |
1511 | goto exit; | |
1512 | } | |
1513 | ||
1514 | err = platform_device_add_resources(pdev, &res, 1); | |
1515 | if (err) { | |
1516 | printk(KERN_ERR DRVNAME ": Device resource addition failed " | |
1517 | "(%d)\n", err); | |
1518 | goto exit_device_put; | |
1519 | } | |
1520 | ||
1521 | err = platform_device_add_data(pdev, sio_data, | |
1522 | sizeof(struct it87_sio_data)); | |
1523 | if (err) { | |
1524 | printk(KERN_ERR DRVNAME ": Platform data allocation failed\n"); | |
1525 | goto exit_device_put; | |
1526 | } | |
1527 | ||
1528 | err = platform_device_add(pdev); | |
1529 | if (err) { | |
1530 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
1531 | err); | |
1532 | goto exit_device_put; | |
1533 | } | |
1534 | ||
1535 | return 0; | |
1536 | ||
1537 | exit_device_put: | |
1538 | platform_device_put(pdev); | |
1539 | exit: | |
1540 | return err; | |
1541 | } | |
1542 | ||
1da177e4 LT |
1543 | static int __init sm_it87_init(void) |
1544 | { | |
b74f3fdd | 1545 | int err; |
1546 | unsigned short isa_address=0; | |
1547 | struct it87_sio_data sio_data; | |
1548 | ||
1549 | err = it87_find(&isa_address, &sio_data); | |
1550 | if (err) | |
1551 | return err; | |
1552 | err = platform_driver_register(&it87_driver); | |
1553 | if (err) | |
1554 | return err; | |
fde09509 | 1555 | |
b74f3fdd | 1556 | err = it87_device_add(isa_address, &sio_data); |
1557 | if (err){ | |
1558 | platform_driver_unregister(&it87_driver); | |
1559 | return err; | |
1560 | } | |
1561 | ||
1562 | return 0; | |
1da177e4 LT |
1563 | } |
1564 | ||
1565 | static void __exit sm_it87_exit(void) | |
1566 | { | |
b74f3fdd | 1567 | platform_device_unregister(pdev); |
1568 | platform_driver_unregister(&it87_driver); | |
1da177e4 LT |
1569 | } |
1570 | ||
1571 | ||
f1d8e332 | 1572 | MODULE_AUTHOR("Chris Gauthron, " |
b19367c6 | 1573 | "Jean Delvare <khali@linux-fr.org>"); |
08a8f6e9 | 1574 | MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8726F, SiS950 driver"); |
1da177e4 LT |
1575 | module_param(update_vbat, bool, 0); |
1576 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); | |
1577 | module_param(fix_pwm_polarity, bool, 0); | |
1578 | MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)"); | |
1579 | MODULE_LICENSE("GPL"); | |
1580 | ||
1581 | module_init(sm_it87_init); | |
1582 | module_exit(sm_it87_exit); |