Commit | Line | Data |
---|---|---|
6f2fad74 NB |
1 | /* |
2 | * drivers/hwmon/applesmc.c - driver for Apple's SMC (accelerometer, temperature | |
3 | * sensors, fan control, keyboard backlight control) used in Intel-based Apple | |
4 | * computers. | |
5 | * | |
6 | * Copyright (C) 2007 Nicolas Boichat <nicolas@boichat.ch> | |
7 | * | |
8 | * Based on hdaps.c driver: | |
9 | * Copyright (C) 2005 Robert Love <rml@novell.com> | |
10 | * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com> | |
11 | * | |
12 | * Fan control based on smcFanControl: | |
13 | * Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com> | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify it | |
16 | * under the terms of the GNU General Public License v2 as published by the | |
17 | * Free Software Foundation. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
20 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
21 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
22 | * more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License along with | |
25 | * this program; if not, write to the Free Software Foundation, Inc., | |
26 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA | |
27 | */ | |
28 | ||
29 | #include <linux/delay.h> | |
30 | #include <linux/platform_device.h> | |
d5cf2b99 | 31 | #include <linux/input-polldev.h> |
6f2fad74 NB |
32 | #include <linux/kernel.h> |
33 | #include <linux/module.h> | |
34 | #include <linux/timer.h> | |
35 | #include <linux/dmi.h> | |
36 | #include <linux/mutex.h> | |
37 | #include <linux/hwmon-sysfs.h> | |
38 | #include <asm/io.h> | |
39 | #include <linux/leds.h> | |
40 | #include <linux/hwmon.h> | |
41 | #include <linux/workqueue.h> | |
42 | ||
43 | /* data port used by Apple SMC */ | |
44 | #define APPLESMC_DATA_PORT 0x300 | |
45 | /* command/status port used by Apple SMC */ | |
46 | #define APPLESMC_CMD_PORT 0x304 | |
47 | ||
48 | #define APPLESMC_NR_PORTS 32 /* 0x300-0x31f */ | |
49 | ||
50 | #define APPLESMC_MAX_DATA_LENGTH 32 | |
51 | ||
52 | #define APPLESMC_STATUS_MASK 0x0f | |
53 | #define APPLESMC_READ_CMD 0x10 | |
54 | #define APPLESMC_WRITE_CMD 0x11 | |
55 | #define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12 | |
56 | #define APPLESMC_GET_KEY_TYPE_CMD 0x13 | |
57 | ||
58 | #define KEY_COUNT_KEY "#KEY" /* r-o ui32 */ | |
59 | ||
60 | #define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6 bytes) */ | |
61 | #define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6 bytes) */ | |
d5cf2b99 | 62 | #define BACKLIGHT_KEY "LKSB" /* w-o {lkb (2 bytes) */ |
6f2fad74 | 63 | |
d5cf2b99 | 64 | #define CLAMSHELL_KEY "MSLD" /* r-o ui8 (unused) */ |
6f2fad74 NB |
65 | |
66 | #define MOTION_SENSOR_X_KEY "MO_X" /* r-o sp78 (2 bytes) */ | |
67 | #define MOTION_SENSOR_Y_KEY "MO_Y" /* r-o sp78 (2 bytes) */ | |
68 | #define MOTION_SENSOR_Z_KEY "MO_Z" /* r-o sp78 (2 bytes) */ | |
69 | #define MOTION_SENSOR_KEY "MOCN" /* r/w ui16 */ | |
70 | ||
71 | #define FANS_COUNT "FNum" /* r-o ui8 */ | |
72 | #define FANS_MANUAL "FS! " /* r-w ui16 */ | |
73 | #define FAN_ACTUAL_SPEED "F0Ac" /* r-o fpe2 (2 bytes) */ | |
74 | #define FAN_MIN_SPEED "F0Mn" /* r-o fpe2 (2 bytes) */ | |
75 | #define FAN_MAX_SPEED "F0Mx" /* r-o fpe2 (2 bytes) */ | |
76 | #define FAN_SAFE_SPEED "F0Sf" /* r-o fpe2 (2 bytes) */ | |
77 | #define FAN_TARGET_SPEED "F0Tg" /* r-w fpe2 (2 bytes) */ | |
78 | #define FAN_POSITION "F0ID" /* r-o char[16] */ | |
79 | ||
80 | /* | |
81 | * Temperature sensors keys (sp78 - 2 bytes). | |
6f2fad74 | 82 | */ |
8de57709 | 83 | static const char* temperature_sensors_sets[][36] = { |
1bed24b9 | 84 | /* Set 0: Macbook Pro */ |
6f2fad74 NB |
85 | { "TA0P", "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "Th0H", |
86 | "Th1H", "Tm0P", "Ts0P", "Ts1P", NULL }, | |
1bed24b9 MS |
87 | /* Set 1: Macbook set */ |
88 | { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S", | |
89 | "Th1H", "Ts0P", NULL }, | |
90 | /* Set 2: Macmini set */ | |
8de57709 RR |
91 | { "TC0D", "TC0P", NULL }, |
92 | /* Set 3: Mac Pro (2 x Quad-Core) */ | |
93 | { "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P", | |
94 | "TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P", | |
95 | "TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S", | |
96 | "TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P", | |
97 | "TM9S", "TN0H", "TS0C", NULL }, | |
6f2fad74 NB |
98 | }; |
99 | ||
100 | /* List of keys used to read/write fan speeds */ | |
101 | static const char* fan_speed_keys[] = { | |
102 | FAN_ACTUAL_SPEED, | |
103 | FAN_MIN_SPEED, | |
104 | FAN_MAX_SPEED, | |
105 | FAN_SAFE_SPEED, | |
106 | FAN_TARGET_SPEED | |
107 | }; | |
108 | ||
109 | #define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */ | |
110 | #define INIT_WAIT_MSECS 50 /* ... in 50ms increments */ | |
111 | ||
d5cf2b99 | 112 | #define APPLESMC_POLL_INTERVAL 50 /* msecs */ |
6f2fad74 NB |
113 | #define APPLESMC_INPUT_FUZZ 4 /* input event threshold */ |
114 | #define APPLESMC_INPUT_FLAT 4 | |
115 | ||
116 | #define SENSOR_X 0 | |
117 | #define SENSOR_Y 1 | |
118 | #define SENSOR_Z 2 | |
119 | ||
120 | /* Structure to be passed to DMI_MATCH function */ | |
121 | struct dmi_match_data { | |
122 | /* Indicates whether this computer has an accelerometer. */ | |
123 | int accelerometer; | |
124 | /* Indicates whether this computer has light sensors and keyboard backlight. */ | |
125 | int light; | |
126 | /* Indicates which temperature sensors set to use. */ | |
127 | int temperature_set; | |
128 | }; | |
129 | ||
130 | static const int debug; | |
131 | static struct platform_device *pdev; | |
132 | static s16 rest_x; | |
133 | static s16 rest_y; | |
1beeffe4 | 134 | static struct device *hwmon_dev; |
d5cf2b99 | 135 | static struct input_polled_dev *applesmc_idev; |
6f2fad74 NB |
136 | |
137 | /* Indicates whether this computer has an accelerometer. */ | |
138 | static unsigned int applesmc_accelerometer; | |
139 | ||
140 | /* Indicates whether this computer has light sensors and keyboard backlight. */ | |
141 | static unsigned int applesmc_light; | |
142 | ||
143 | /* Indicates which temperature sensors set to use. */ | |
144 | static unsigned int applesmc_temperature_set; | |
145 | ||
d5cf2b99 | 146 | static DEFINE_MUTEX(applesmc_lock); |
6f2fad74 NB |
147 | |
148 | /* | |
149 | * Last index written to key_at_index sysfs file, and value to use for all other | |
150 | * key_at_index_* sysfs files. | |
151 | */ | |
152 | static unsigned int key_at_index; | |
153 | ||
154 | static struct workqueue_struct *applesmc_led_wq; | |
155 | ||
156 | /* | |
157 | * __wait_status - Wait up to 2ms for the status port to get a certain value | |
158 | * (masked with 0x0f), returning zero if the value is obtained. Callers must | |
159 | * hold applesmc_lock. | |
160 | */ | |
161 | static int __wait_status(u8 val) | |
162 | { | |
163 | unsigned int i; | |
164 | ||
165 | val = val & APPLESMC_STATUS_MASK; | |
166 | ||
167 | for (i = 0; i < 200; i++) { | |
168 | if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) { | |
169 | if (debug) | |
170 | printk(KERN_DEBUG | |
171 | "Waited %d us for status %x\n", | |
172 | i*10, val); | |
173 | return 0; | |
174 | } | |
175 | udelay(10); | |
176 | } | |
177 | ||
178 | printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n", | |
179 | val, inb(APPLESMC_CMD_PORT)); | |
180 | ||
181 | return -EIO; | |
182 | } | |
183 | ||
184 | /* | |
185 | * applesmc_read_key - reads len bytes from a given key, and put them in buffer. | |
186 | * Returns zero on success or a negative error on failure. Callers must | |
187 | * hold applesmc_lock. | |
188 | */ | |
189 | static int applesmc_read_key(const char* key, u8* buffer, u8 len) | |
190 | { | |
191 | int i; | |
192 | ||
193 | if (len > APPLESMC_MAX_DATA_LENGTH) { | |
194 | printk(KERN_ERR "applesmc_read_key: cannot read more than " | |
195 | "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); | |
196 | return -EINVAL; | |
197 | } | |
198 | ||
199 | outb(APPLESMC_READ_CMD, APPLESMC_CMD_PORT); | |
200 | if (__wait_status(0x0c)) | |
201 | return -EIO; | |
202 | ||
203 | for (i = 0; i < 4; i++) { | |
204 | outb(key[i], APPLESMC_DATA_PORT); | |
205 | if (__wait_status(0x04)) | |
206 | return -EIO; | |
207 | } | |
208 | if (debug) | |
209 | printk(KERN_DEBUG "<%s", key); | |
210 | ||
211 | outb(len, APPLESMC_DATA_PORT); | |
212 | if (debug) | |
213 | printk(KERN_DEBUG ">%x", len); | |
214 | ||
215 | for (i = 0; i < len; i++) { | |
216 | if (__wait_status(0x05)) | |
217 | return -EIO; | |
218 | buffer[i] = inb(APPLESMC_DATA_PORT); | |
219 | if (debug) | |
220 | printk(KERN_DEBUG "<%x", buffer[i]); | |
221 | } | |
222 | if (debug) | |
223 | printk(KERN_DEBUG "\n"); | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | /* | |
229 | * applesmc_write_key - writes len bytes from buffer to a given key. | |
230 | * Returns zero on success or a negative error on failure. Callers must | |
231 | * hold applesmc_lock. | |
232 | */ | |
233 | static int applesmc_write_key(const char* key, u8* buffer, u8 len) | |
234 | { | |
235 | int i; | |
236 | ||
237 | if (len > APPLESMC_MAX_DATA_LENGTH) { | |
238 | printk(KERN_ERR "applesmc_write_key: cannot write more than " | |
239 | "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
243 | outb(APPLESMC_WRITE_CMD, APPLESMC_CMD_PORT); | |
244 | if (__wait_status(0x0c)) | |
245 | return -EIO; | |
246 | ||
247 | for (i = 0; i < 4; i++) { | |
248 | outb(key[i], APPLESMC_DATA_PORT); | |
249 | if (__wait_status(0x04)) | |
250 | return -EIO; | |
251 | } | |
252 | ||
253 | outb(len, APPLESMC_DATA_PORT); | |
254 | ||
255 | for (i = 0; i < len; i++) { | |
256 | if (__wait_status(0x04)) | |
257 | return -EIO; | |
258 | outb(buffer[i], APPLESMC_DATA_PORT); | |
259 | } | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | /* | |
265 | * applesmc_get_key_at_index - get key at index, and put the result in key | |
266 | * (char[6]). Returns zero on success or a negative error on failure. Callers | |
267 | * must hold applesmc_lock. | |
268 | */ | |
269 | static int applesmc_get_key_at_index(int index, char* key) | |
270 | { | |
271 | int i; | |
272 | u8 readkey[4]; | |
273 | readkey[0] = index >> 24; | |
274 | readkey[1] = index >> 16; | |
275 | readkey[2] = index >> 8; | |
276 | readkey[3] = index; | |
277 | ||
278 | outb(APPLESMC_GET_KEY_BY_INDEX_CMD, APPLESMC_CMD_PORT); | |
279 | if (__wait_status(0x0c)) | |
280 | return -EIO; | |
281 | ||
282 | for (i = 0; i < 4; i++) { | |
283 | outb(readkey[i], APPLESMC_DATA_PORT); | |
284 | if (__wait_status(0x04)) | |
285 | return -EIO; | |
286 | } | |
287 | ||
288 | outb(4, APPLESMC_DATA_PORT); | |
289 | ||
290 | for (i = 0; i < 4; i++) { | |
291 | if (__wait_status(0x05)) | |
292 | return -EIO; | |
293 | key[i] = inb(APPLESMC_DATA_PORT); | |
294 | } | |
295 | key[4] = 0; | |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
300 | /* | |
301 | * applesmc_get_key_type - get key type, and put the result in type (char[6]). | |
302 | * Returns zero on success or a negative error on failure. Callers must | |
303 | * hold applesmc_lock. | |
304 | */ | |
305 | static int applesmc_get_key_type(char* key, char* type) | |
306 | { | |
307 | int i; | |
308 | ||
309 | outb(APPLESMC_GET_KEY_TYPE_CMD, APPLESMC_CMD_PORT); | |
310 | if (__wait_status(0x0c)) | |
311 | return -EIO; | |
312 | ||
313 | for (i = 0; i < 4; i++) { | |
314 | outb(key[i], APPLESMC_DATA_PORT); | |
315 | if (__wait_status(0x04)) | |
316 | return -EIO; | |
317 | } | |
318 | ||
319 | outb(5, APPLESMC_DATA_PORT); | |
320 | ||
321 | for (i = 0; i < 6; i++) { | |
322 | if (__wait_status(0x05)) | |
323 | return -EIO; | |
324 | type[i] = inb(APPLESMC_DATA_PORT); | |
325 | } | |
326 | type[5] = 0; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | /* | |
332 | * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must | |
333 | * hold applesmc_lock. | |
334 | */ | |
335 | static int applesmc_read_motion_sensor(int index, s16* value) | |
336 | { | |
337 | u8 buffer[2]; | |
338 | int ret; | |
339 | ||
340 | switch (index) { | |
341 | case SENSOR_X: | |
342 | ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2); | |
343 | break; | |
344 | case SENSOR_Y: | |
345 | ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2); | |
346 | break; | |
347 | case SENSOR_Z: | |
348 | ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2); | |
349 | break; | |
350 | default: | |
351 | ret = -EINVAL; | |
352 | } | |
353 | ||
354 | *value = ((s16)buffer[0] << 8) | buffer[1]; | |
355 | ||
356 | return ret; | |
357 | } | |
358 | ||
359 | /* | |
360 | * applesmc_device_init - initialize the accelerometer. Returns zero on success | |
361 | * and negative error code on failure. Can sleep. | |
362 | */ | |
363 | static int applesmc_device_init(void) | |
364 | { | |
365 | int total, ret = -ENXIO; | |
366 | u8 buffer[2]; | |
367 | ||
368 | if (!applesmc_accelerometer) | |
369 | return 0; | |
370 | ||
371 | mutex_lock(&applesmc_lock); | |
372 | ||
373 | for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) { | |
374 | if (debug) | |
375 | printk(KERN_DEBUG "applesmc try %d\n", total); | |
376 | if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) && | |
377 | (buffer[0] != 0x00 || buffer[1] != 0x00)) { | |
378 | if (total == INIT_TIMEOUT_MSECS) { | |
379 | printk(KERN_DEBUG "applesmc: device has" | |
380 | " already been initialized" | |
381 | " (0x%02x, 0x%02x).\n", | |
382 | buffer[0], buffer[1]); | |
383 | } else { | |
384 | printk(KERN_DEBUG "applesmc: device" | |
385 | " successfully initialized" | |
386 | " (0x%02x, 0x%02x).\n", | |
387 | buffer[0], buffer[1]); | |
388 | } | |
389 | ret = 0; | |
390 | goto out; | |
391 | } | |
392 | buffer[0] = 0xe0; | |
393 | buffer[1] = 0x00; | |
394 | applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2); | |
395 | msleep(INIT_WAIT_MSECS); | |
396 | } | |
397 | ||
398 | printk(KERN_WARNING "applesmc: failed to init the device\n"); | |
399 | ||
400 | out: | |
401 | mutex_unlock(&applesmc_lock); | |
402 | return ret; | |
403 | } | |
404 | ||
405 | /* | |
406 | * applesmc_get_fan_count - get the number of fans. Callers must NOT hold | |
407 | * applesmc_lock. | |
408 | */ | |
409 | static int applesmc_get_fan_count(void) | |
410 | { | |
411 | int ret; | |
412 | u8 buffer[1]; | |
413 | ||
414 | mutex_lock(&applesmc_lock); | |
415 | ||
416 | ret = applesmc_read_key(FANS_COUNT, buffer, 1); | |
417 | ||
418 | mutex_unlock(&applesmc_lock); | |
419 | if (ret) | |
420 | return ret; | |
421 | else | |
422 | return buffer[0]; | |
423 | } | |
424 | ||
425 | /* Device model stuff */ | |
426 | static int applesmc_probe(struct platform_device *dev) | |
427 | { | |
428 | int ret; | |
429 | ||
430 | ret = applesmc_device_init(); | |
431 | if (ret) | |
432 | return ret; | |
433 | ||
434 | printk(KERN_INFO "applesmc: device successfully initialized.\n"); | |
435 | return 0; | |
436 | } | |
437 | ||
438 | static int applesmc_resume(struct platform_device *dev) | |
439 | { | |
440 | return applesmc_device_init(); | |
441 | } | |
442 | ||
443 | static struct platform_driver applesmc_driver = { | |
444 | .probe = applesmc_probe, | |
445 | .resume = applesmc_resume, | |
446 | .driver = { | |
447 | .name = "applesmc", | |
448 | .owner = THIS_MODULE, | |
449 | }, | |
450 | }; | |
451 | ||
452 | /* | |
453 | * applesmc_calibrate - Set our "resting" values. Callers must | |
454 | * hold applesmc_lock. | |
455 | */ | |
456 | static void applesmc_calibrate(void) | |
457 | { | |
458 | applesmc_read_motion_sensor(SENSOR_X, &rest_x); | |
459 | applesmc_read_motion_sensor(SENSOR_Y, &rest_y); | |
460 | rest_x = -rest_x; | |
461 | } | |
462 | ||
d5cf2b99 | 463 | static void applesmc_idev_poll(struct input_polled_dev *dev) |
6f2fad74 | 464 | { |
d5cf2b99 | 465 | struct input_dev *idev = dev->input; |
6f2fad74 NB |
466 | s16 x, y; |
467 | ||
d5cf2b99 | 468 | mutex_lock(&applesmc_lock); |
6f2fad74 NB |
469 | |
470 | if (applesmc_read_motion_sensor(SENSOR_X, &x)) | |
471 | goto out; | |
472 | if (applesmc_read_motion_sensor(SENSOR_Y, &y)) | |
473 | goto out; | |
474 | ||
475 | x = -x; | |
d5cf2b99 DT |
476 | input_report_abs(idev, ABS_X, x - rest_x); |
477 | input_report_abs(idev, ABS_Y, y - rest_y); | |
478 | input_sync(idev); | |
6f2fad74 NB |
479 | |
480 | out: | |
6f2fad74 NB |
481 | mutex_unlock(&applesmc_lock); |
482 | } | |
483 | ||
484 | /* Sysfs Files */ | |
485 | ||
fa74419b NB |
486 | static ssize_t applesmc_name_show(struct device *dev, |
487 | struct device_attribute *attr, char *buf) | |
488 | { | |
489 | return snprintf(buf, PAGE_SIZE, "applesmc\n"); | |
490 | } | |
491 | ||
6f2fad74 NB |
492 | static ssize_t applesmc_position_show(struct device *dev, |
493 | struct device_attribute *attr, char *buf) | |
494 | { | |
495 | int ret; | |
496 | s16 x, y, z; | |
497 | ||
498 | mutex_lock(&applesmc_lock); | |
499 | ||
500 | ret = applesmc_read_motion_sensor(SENSOR_X, &x); | |
501 | if (ret) | |
502 | goto out; | |
503 | ret = applesmc_read_motion_sensor(SENSOR_Y, &y); | |
504 | if (ret) | |
505 | goto out; | |
506 | ret = applesmc_read_motion_sensor(SENSOR_Z, &z); | |
507 | if (ret) | |
508 | goto out; | |
509 | ||
510 | out: | |
511 | mutex_unlock(&applesmc_lock); | |
512 | if (ret) | |
513 | return ret; | |
514 | else | |
515 | return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z); | |
516 | } | |
517 | ||
518 | static ssize_t applesmc_light_show(struct device *dev, | |
519 | struct device_attribute *attr, char *sysfsbuf) | |
520 | { | |
521 | int ret; | |
522 | u8 left = 0, right = 0; | |
523 | u8 buffer[6]; | |
524 | ||
525 | mutex_lock(&applesmc_lock); | |
526 | ||
527 | ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, 6); | |
528 | left = buffer[2]; | |
529 | if (ret) | |
530 | goto out; | |
531 | ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, 6); | |
532 | right = buffer[2]; | |
533 | ||
534 | out: | |
535 | mutex_unlock(&applesmc_lock); | |
536 | if (ret) | |
537 | return ret; | |
538 | else | |
539 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right); | |
540 | } | |
541 | ||
542 | /* Displays degree Celsius * 1000 */ | |
543 | static ssize_t applesmc_show_temperature(struct device *dev, | |
544 | struct device_attribute *devattr, char *sysfsbuf) | |
545 | { | |
546 | int ret; | |
547 | u8 buffer[2]; | |
548 | unsigned int temp; | |
549 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
550 | const char* key = | |
551 | temperature_sensors_sets[applesmc_temperature_set][attr->index]; | |
552 | ||
553 | mutex_lock(&applesmc_lock); | |
554 | ||
555 | ret = applesmc_read_key(key, buffer, 2); | |
556 | temp = buffer[0]*1000; | |
557 | temp += (buffer[1] >> 6) * 250; | |
558 | ||
559 | mutex_unlock(&applesmc_lock); | |
560 | ||
561 | if (ret) | |
562 | return ret; | |
563 | else | |
564 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp); | |
565 | } | |
566 | ||
567 | static ssize_t applesmc_show_fan_speed(struct device *dev, | |
568 | struct device_attribute *attr, char *sysfsbuf) | |
569 | { | |
570 | int ret; | |
571 | unsigned int speed = 0; | |
572 | char newkey[5]; | |
573 | u8 buffer[2]; | |
574 | struct sensor_device_attribute_2 *sensor_attr = | |
575 | to_sensor_dev_attr_2(attr); | |
576 | ||
577 | newkey[0] = fan_speed_keys[sensor_attr->nr][0]; | |
578 | newkey[1] = '0' + sensor_attr->index; | |
579 | newkey[2] = fan_speed_keys[sensor_attr->nr][2]; | |
580 | newkey[3] = fan_speed_keys[sensor_attr->nr][3]; | |
581 | newkey[4] = 0; | |
582 | ||
583 | mutex_lock(&applesmc_lock); | |
584 | ||
585 | ret = applesmc_read_key(newkey, buffer, 2); | |
586 | speed = ((buffer[0] << 8 | buffer[1]) >> 2); | |
587 | ||
588 | mutex_unlock(&applesmc_lock); | |
589 | if (ret) | |
590 | return ret; | |
591 | else | |
592 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed); | |
593 | } | |
594 | ||
595 | static ssize_t applesmc_store_fan_speed(struct device *dev, | |
596 | struct device_attribute *attr, | |
597 | const char *sysfsbuf, size_t count) | |
598 | { | |
599 | int ret; | |
600 | u32 speed; | |
601 | char newkey[5]; | |
602 | u8 buffer[2]; | |
603 | struct sensor_device_attribute_2 *sensor_attr = | |
604 | to_sensor_dev_attr_2(attr); | |
605 | ||
606 | speed = simple_strtoul(sysfsbuf, NULL, 10); | |
607 | ||
608 | if (speed > 0x4000) /* Bigger than a 14-bit value */ | |
609 | return -EINVAL; | |
610 | ||
611 | newkey[0] = fan_speed_keys[sensor_attr->nr][0]; | |
612 | newkey[1] = '0' + sensor_attr->index; | |
613 | newkey[2] = fan_speed_keys[sensor_attr->nr][2]; | |
614 | newkey[3] = fan_speed_keys[sensor_attr->nr][3]; | |
615 | newkey[4] = 0; | |
616 | ||
617 | mutex_lock(&applesmc_lock); | |
618 | ||
619 | buffer[0] = (speed >> 6) & 0xff; | |
620 | buffer[1] = (speed << 2) & 0xff; | |
621 | ret = applesmc_write_key(newkey, buffer, 2); | |
622 | ||
623 | mutex_unlock(&applesmc_lock); | |
624 | if (ret) | |
625 | return ret; | |
626 | else | |
627 | return count; | |
628 | } | |
629 | ||
630 | static ssize_t applesmc_show_fan_manual(struct device *dev, | |
631 | struct device_attribute *devattr, char *sysfsbuf) | |
632 | { | |
633 | int ret; | |
634 | u16 manual = 0; | |
635 | u8 buffer[2]; | |
636 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
637 | ||
638 | mutex_lock(&applesmc_lock); | |
639 | ||
640 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); | |
641 | manual = ((buffer[0] << 8 | buffer[1]) >> attr->index) & 0x01; | |
642 | ||
643 | mutex_unlock(&applesmc_lock); | |
644 | if (ret) | |
645 | return ret; | |
646 | else | |
647 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual); | |
648 | } | |
649 | ||
650 | static ssize_t applesmc_store_fan_manual(struct device *dev, | |
651 | struct device_attribute *devattr, | |
652 | const char *sysfsbuf, size_t count) | |
653 | { | |
654 | int ret; | |
655 | u8 buffer[2]; | |
656 | u32 input; | |
657 | u16 val; | |
658 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
659 | ||
660 | input = simple_strtoul(sysfsbuf, NULL, 10); | |
661 | ||
662 | mutex_lock(&applesmc_lock); | |
663 | ||
664 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); | |
665 | val = (buffer[0] << 8 | buffer[1]); | |
666 | if (ret) | |
667 | goto out; | |
668 | ||
669 | if (input) | |
670 | val = val | (0x01 << attr->index); | |
671 | else | |
672 | val = val & ~(0x01 << attr->index); | |
673 | ||
674 | buffer[0] = (val >> 8) & 0xFF; | |
675 | buffer[1] = val & 0xFF; | |
676 | ||
677 | ret = applesmc_write_key(FANS_MANUAL, buffer, 2); | |
678 | ||
679 | out: | |
680 | mutex_unlock(&applesmc_lock); | |
681 | if (ret) | |
682 | return ret; | |
683 | else | |
684 | return count; | |
685 | } | |
686 | ||
687 | static ssize_t applesmc_show_fan_position(struct device *dev, | |
688 | struct device_attribute *attr, char *sysfsbuf) | |
689 | { | |
690 | int ret; | |
691 | char newkey[5]; | |
692 | u8 buffer[17]; | |
693 | struct sensor_device_attribute_2 *sensor_attr = | |
694 | to_sensor_dev_attr_2(attr); | |
695 | ||
696 | newkey[0] = FAN_POSITION[0]; | |
697 | newkey[1] = '0' + sensor_attr->index; | |
698 | newkey[2] = FAN_POSITION[2]; | |
699 | newkey[3] = FAN_POSITION[3]; | |
700 | newkey[4] = 0; | |
701 | ||
702 | mutex_lock(&applesmc_lock); | |
703 | ||
704 | ret = applesmc_read_key(newkey, buffer, 16); | |
705 | buffer[16] = 0; | |
706 | ||
707 | mutex_unlock(&applesmc_lock); | |
708 | if (ret) | |
709 | return ret; | |
710 | else | |
711 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4); | |
712 | } | |
713 | ||
714 | static ssize_t applesmc_calibrate_show(struct device *dev, | |
715 | struct device_attribute *attr, char *sysfsbuf) | |
716 | { | |
717 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y); | |
718 | } | |
719 | ||
720 | static ssize_t applesmc_calibrate_store(struct device *dev, | |
721 | struct device_attribute *attr, const char *sysfsbuf, size_t count) | |
722 | { | |
723 | mutex_lock(&applesmc_lock); | |
724 | applesmc_calibrate(); | |
725 | mutex_unlock(&applesmc_lock); | |
726 | ||
727 | return count; | |
728 | } | |
729 | ||
730 | /* Store the next backlight value to be written by the work */ | |
731 | static unsigned int backlight_value; | |
732 | ||
733 | static void applesmc_backlight_set(struct work_struct *work) | |
734 | { | |
735 | u8 buffer[2]; | |
736 | ||
737 | mutex_lock(&applesmc_lock); | |
738 | buffer[0] = backlight_value; | |
739 | buffer[1] = 0x00; | |
740 | applesmc_write_key(BACKLIGHT_KEY, buffer, 2); | |
741 | mutex_unlock(&applesmc_lock); | |
742 | } | |
743 | static DECLARE_WORK(backlight_work, &applesmc_backlight_set); | |
744 | ||
745 | static void applesmc_brightness_set(struct led_classdev *led_cdev, | |
746 | enum led_brightness value) | |
747 | { | |
748 | int ret; | |
749 | ||
750 | backlight_value = value; | |
751 | ret = queue_work(applesmc_led_wq, &backlight_work); | |
752 | ||
753 | if (debug && (!ret)) | |
754 | printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); | |
755 | } | |
756 | ||
757 | static ssize_t applesmc_key_count_show(struct device *dev, | |
758 | struct device_attribute *attr, char *sysfsbuf) | |
759 | { | |
760 | int ret; | |
761 | u8 buffer[4]; | |
762 | u32 count; | |
763 | ||
764 | mutex_lock(&applesmc_lock); | |
765 | ||
766 | ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4); | |
767 | count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) + | |
768 | ((u32)buffer[2]<<8) + buffer[3]; | |
769 | ||
770 | mutex_unlock(&applesmc_lock); | |
771 | if (ret) | |
772 | return ret; | |
773 | else | |
774 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count); | |
775 | } | |
776 | ||
777 | static ssize_t applesmc_key_at_index_read_show(struct device *dev, | |
778 | struct device_attribute *attr, char *sysfsbuf) | |
779 | { | |
780 | char key[5]; | |
781 | char info[6]; | |
782 | int ret; | |
783 | ||
784 | mutex_lock(&applesmc_lock); | |
785 | ||
786 | ret = applesmc_get_key_at_index(key_at_index, key); | |
787 | ||
788 | if (ret || !key[0]) { | |
789 | mutex_unlock(&applesmc_lock); | |
790 | ||
791 | return -EINVAL; | |
792 | } | |
793 | ||
794 | ret = applesmc_get_key_type(key, info); | |
795 | ||
796 | if (ret) { | |
797 | mutex_unlock(&applesmc_lock); | |
798 | ||
799 | return ret; | |
800 | } | |
801 | ||
802 | /* | |
803 | * info[0] maximum value (APPLESMC_MAX_DATA_LENGTH) is much lower than | |
804 | * PAGE_SIZE, so we don't need any checks before writing to sysfsbuf. | |
805 | */ | |
806 | ret = applesmc_read_key(key, sysfsbuf, info[0]); | |
807 | ||
808 | mutex_unlock(&applesmc_lock); | |
809 | ||
810 | if (!ret) { | |
811 | return info[0]; | |
d5cf2b99 | 812 | } else { |
6f2fad74 NB |
813 | return ret; |
814 | } | |
815 | } | |
816 | ||
817 | static ssize_t applesmc_key_at_index_data_length_show(struct device *dev, | |
818 | struct device_attribute *attr, char *sysfsbuf) | |
819 | { | |
820 | char key[5]; | |
821 | char info[6]; | |
822 | int ret; | |
823 | ||
824 | mutex_lock(&applesmc_lock); | |
825 | ||
826 | ret = applesmc_get_key_at_index(key_at_index, key); | |
827 | ||
828 | if (ret || !key[0]) { | |
829 | mutex_unlock(&applesmc_lock); | |
830 | ||
831 | return -EINVAL; | |
832 | } | |
833 | ||
834 | ret = applesmc_get_key_type(key, info); | |
835 | ||
836 | mutex_unlock(&applesmc_lock); | |
837 | ||
838 | if (!ret) | |
839 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", info[0]); | |
840 | else | |
841 | return ret; | |
842 | } | |
843 | ||
844 | static ssize_t applesmc_key_at_index_type_show(struct device *dev, | |
845 | struct device_attribute *attr, char *sysfsbuf) | |
846 | { | |
847 | char key[5]; | |
848 | char info[6]; | |
849 | int ret; | |
850 | ||
851 | mutex_lock(&applesmc_lock); | |
852 | ||
853 | ret = applesmc_get_key_at_index(key_at_index, key); | |
854 | ||
855 | if (ret || !key[0]) { | |
856 | mutex_unlock(&applesmc_lock); | |
857 | ||
858 | return -EINVAL; | |
859 | } | |
860 | ||
861 | ret = applesmc_get_key_type(key, info); | |
862 | ||
863 | mutex_unlock(&applesmc_lock); | |
864 | ||
865 | if (!ret) | |
866 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", info+1); | |
867 | else | |
868 | return ret; | |
869 | } | |
870 | ||
871 | static ssize_t applesmc_key_at_index_name_show(struct device *dev, | |
872 | struct device_attribute *attr, char *sysfsbuf) | |
873 | { | |
874 | char key[5]; | |
875 | int ret; | |
876 | ||
877 | mutex_lock(&applesmc_lock); | |
878 | ||
879 | ret = applesmc_get_key_at_index(key_at_index, key); | |
880 | ||
881 | mutex_unlock(&applesmc_lock); | |
882 | ||
883 | if (!ret && key[0]) | |
884 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key); | |
885 | else | |
886 | return -EINVAL; | |
887 | } | |
888 | ||
889 | static ssize_t applesmc_key_at_index_show(struct device *dev, | |
890 | struct device_attribute *attr, char *sysfsbuf) | |
891 | { | |
892 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index); | |
893 | } | |
894 | ||
895 | static ssize_t applesmc_key_at_index_store(struct device *dev, | |
896 | struct device_attribute *attr, const char *sysfsbuf, size_t count) | |
897 | { | |
898 | mutex_lock(&applesmc_lock); | |
899 | ||
900 | key_at_index = simple_strtoul(sysfsbuf, NULL, 10); | |
901 | ||
902 | mutex_unlock(&applesmc_lock); | |
903 | ||
904 | return count; | |
905 | } | |
906 | ||
907 | static struct led_classdev applesmc_backlight = { | |
6c152bee | 908 | .name = "smc::kbd_backlight", |
6f2fad74 NB |
909 | .default_trigger = "nand-disk", |
910 | .brightness_set = applesmc_brightness_set, | |
911 | }; | |
912 | ||
fa74419b NB |
913 | static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL); |
914 | ||
6f2fad74 NB |
915 | static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL); |
916 | static DEVICE_ATTR(calibrate, 0644, | |
917 | applesmc_calibrate_show, applesmc_calibrate_store); | |
918 | ||
919 | static struct attribute *accelerometer_attributes[] = { | |
920 | &dev_attr_position.attr, | |
921 | &dev_attr_calibrate.attr, | |
922 | NULL | |
923 | }; | |
924 | ||
925 | static const struct attribute_group accelerometer_attributes_group = | |
926 | { .attrs = accelerometer_attributes }; | |
927 | ||
928 | static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL); | |
929 | ||
930 | static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL); | |
931 | static DEVICE_ATTR(key_at_index, 0644, | |
932 | applesmc_key_at_index_show, applesmc_key_at_index_store); | |
933 | static DEVICE_ATTR(key_at_index_name, 0444, | |
934 | applesmc_key_at_index_name_show, NULL); | |
935 | static DEVICE_ATTR(key_at_index_type, 0444, | |
936 | applesmc_key_at_index_type_show, NULL); | |
937 | static DEVICE_ATTR(key_at_index_data_length, 0444, | |
938 | applesmc_key_at_index_data_length_show, NULL); | |
939 | static DEVICE_ATTR(key_at_index_data, 0444, | |
940 | applesmc_key_at_index_read_show, NULL); | |
941 | ||
942 | static struct attribute *key_enumeration_attributes[] = { | |
943 | &dev_attr_key_count.attr, | |
944 | &dev_attr_key_at_index.attr, | |
945 | &dev_attr_key_at_index_name.attr, | |
946 | &dev_attr_key_at_index_type.attr, | |
947 | &dev_attr_key_at_index_data_length.attr, | |
948 | &dev_attr_key_at_index_data.attr, | |
949 | NULL | |
950 | }; | |
951 | ||
952 | static const struct attribute_group key_enumeration_group = | |
953 | { .attrs = key_enumeration_attributes }; | |
954 | ||
955 | /* | |
956 | * Macro defining SENSOR_DEVICE_ATTR for a fan sysfs entries. | |
957 | * - show actual speed | |
958 | * - show/store minimum speed | |
959 | * - show maximum speed | |
960 | * - show safe speed | |
961 | * - show/store target speed | |
962 | * - show/store manual mode | |
963 | */ | |
964 | #define sysfs_fan_speeds_offset(offset) \ | |
965 | static SENSOR_DEVICE_ATTR_2(fan##offset##_input, S_IRUGO, \ | |
966 | applesmc_show_fan_speed, NULL, 0, offset-1); \ | |
967 | \ | |
968 | static SENSOR_DEVICE_ATTR_2(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
969 | applesmc_show_fan_speed, applesmc_store_fan_speed, 1, offset-1); \ | |
970 | \ | |
971 | static SENSOR_DEVICE_ATTR_2(fan##offset##_max, S_IRUGO, \ | |
972 | applesmc_show_fan_speed, NULL, 2, offset-1); \ | |
973 | \ | |
974 | static SENSOR_DEVICE_ATTR_2(fan##offset##_safe, S_IRUGO, \ | |
975 | applesmc_show_fan_speed, NULL, 3, offset-1); \ | |
976 | \ | |
977 | static SENSOR_DEVICE_ATTR_2(fan##offset##_output, S_IRUGO | S_IWUSR, \ | |
978 | applesmc_show_fan_speed, applesmc_store_fan_speed, 4, offset-1); \ | |
979 | \ | |
980 | static SENSOR_DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \ | |
981 | applesmc_show_fan_manual, applesmc_store_fan_manual, offset-1); \ | |
982 | \ | |
da4e8ca3 | 983 | static SENSOR_DEVICE_ATTR(fan##offset##_label, S_IRUGO, \ |
6f2fad74 NB |
984 | applesmc_show_fan_position, NULL, offset-1); \ |
985 | \ | |
986 | static struct attribute *fan##offset##_attributes[] = { \ | |
987 | &sensor_dev_attr_fan##offset##_input.dev_attr.attr, \ | |
988 | &sensor_dev_attr_fan##offset##_min.dev_attr.attr, \ | |
989 | &sensor_dev_attr_fan##offset##_max.dev_attr.attr, \ | |
990 | &sensor_dev_attr_fan##offset##_safe.dev_attr.attr, \ | |
991 | &sensor_dev_attr_fan##offset##_output.dev_attr.attr, \ | |
992 | &sensor_dev_attr_fan##offset##_manual.dev_attr.attr, \ | |
da4e8ca3 | 993 | &sensor_dev_attr_fan##offset##_label.dev_attr.attr, \ |
6f2fad74 NB |
994 | NULL \ |
995 | }; | |
996 | ||
997 | /* | |
998 | * Create the needed functions for each fan using the macro defined above | |
8de57709 | 999 | * (4 fans are supported) |
6f2fad74 NB |
1000 | */ |
1001 | sysfs_fan_speeds_offset(1); | |
1002 | sysfs_fan_speeds_offset(2); | |
8de57709 RR |
1003 | sysfs_fan_speeds_offset(3); |
1004 | sysfs_fan_speeds_offset(4); | |
6f2fad74 NB |
1005 | |
1006 | static const struct attribute_group fan_attribute_groups[] = { | |
1007 | { .attrs = fan1_attributes }, | |
8de57709 RR |
1008 | { .attrs = fan2_attributes }, |
1009 | { .attrs = fan3_attributes }, | |
1010 | { .attrs = fan4_attributes }, | |
6f2fad74 NB |
1011 | }; |
1012 | ||
1013 | /* | |
1014 | * Temperature sensors sysfs entries. | |
1015 | */ | |
1016 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, | |
1017 | applesmc_show_temperature, NULL, 0); | |
1018 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, | |
1019 | applesmc_show_temperature, NULL, 1); | |
1020 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, | |
1021 | applesmc_show_temperature, NULL, 2); | |
1022 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, | |
1023 | applesmc_show_temperature, NULL, 3); | |
1024 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, | |
1025 | applesmc_show_temperature, NULL, 4); | |
1026 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, | |
1027 | applesmc_show_temperature, NULL, 5); | |
1028 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, | |
1029 | applesmc_show_temperature, NULL, 6); | |
1030 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, | |
1031 | applesmc_show_temperature, NULL, 7); | |
1032 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, | |
1033 | applesmc_show_temperature, NULL, 8); | |
1034 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, | |
1035 | applesmc_show_temperature, NULL, 9); | |
1036 | static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, | |
1037 | applesmc_show_temperature, NULL, 10); | |
1038 | static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, | |
1039 | applesmc_show_temperature, NULL, 11); | |
8de57709 RR |
1040 | static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, |
1041 | applesmc_show_temperature, NULL, 12); | |
1042 | static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, | |
1043 | applesmc_show_temperature, NULL, 13); | |
1044 | static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, | |
1045 | applesmc_show_temperature, NULL, 14); | |
1046 | static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO, | |
1047 | applesmc_show_temperature, NULL, 15); | |
1048 | static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO, | |
1049 | applesmc_show_temperature, NULL, 16); | |
1050 | static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO, | |
1051 | applesmc_show_temperature, NULL, 17); | |
1052 | static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO, | |
1053 | applesmc_show_temperature, NULL, 18); | |
1054 | static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO, | |
1055 | applesmc_show_temperature, NULL, 19); | |
1056 | static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO, | |
1057 | applesmc_show_temperature, NULL, 20); | |
1058 | static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO, | |
1059 | applesmc_show_temperature, NULL, 21); | |
1060 | static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO, | |
1061 | applesmc_show_temperature, NULL, 22); | |
1062 | static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO, | |
1063 | applesmc_show_temperature, NULL, 23); | |
1064 | static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO, | |
1065 | applesmc_show_temperature, NULL, 24); | |
1066 | static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO, | |
1067 | applesmc_show_temperature, NULL, 25); | |
1068 | static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO, | |
1069 | applesmc_show_temperature, NULL, 26); | |
1070 | static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO, | |
1071 | applesmc_show_temperature, NULL, 27); | |
1072 | static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO, | |
1073 | applesmc_show_temperature, NULL, 28); | |
1074 | static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO, | |
1075 | applesmc_show_temperature, NULL, 29); | |
1076 | static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO, | |
1077 | applesmc_show_temperature, NULL, 30); | |
1078 | static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO, | |
1079 | applesmc_show_temperature, NULL, 31); | |
1080 | static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO, | |
1081 | applesmc_show_temperature, NULL, 32); | |
1082 | static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO, | |
1083 | applesmc_show_temperature, NULL, 33); | |
1084 | static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO, | |
1085 | applesmc_show_temperature, NULL, 34); | |
6f2fad74 NB |
1086 | |
1087 | static struct attribute *temperature_attributes[] = { | |
1088 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1089 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1090 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1091 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1092 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1093 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1094 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1095 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1096 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1097 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
1098 | &sensor_dev_attr_temp11_input.dev_attr.attr, | |
1099 | &sensor_dev_attr_temp12_input.dev_attr.attr, | |
8de57709 RR |
1100 | &sensor_dev_attr_temp13_input.dev_attr.attr, |
1101 | &sensor_dev_attr_temp14_input.dev_attr.attr, | |
1102 | &sensor_dev_attr_temp15_input.dev_attr.attr, | |
1103 | &sensor_dev_attr_temp16_input.dev_attr.attr, | |
1104 | &sensor_dev_attr_temp17_input.dev_attr.attr, | |
1105 | &sensor_dev_attr_temp18_input.dev_attr.attr, | |
1106 | &sensor_dev_attr_temp19_input.dev_attr.attr, | |
1107 | &sensor_dev_attr_temp20_input.dev_attr.attr, | |
1108 | &sensor_dev_attr_temp21_input.dev_attr.attr, | |
1109 | &sensor_dev_attr_temp22_input.dev_attr.attr, | |
1110 | &sensor_dev_attr_temp23_input.dev_attr.attr, | |
1111 | &sensor_dev_attr_temp24_input.dev_attr.attr, | |
1112 | &sensor_dev_attr_temp25_input.dev_attr.attr, | |
1113 | &sensor_dev_attr_temp26_input.dev_attr.attr, | |
1114 | &sensor_dev_attr_temp27_input.dev_attr.attr, | |
1115 | &sensor_dev_attr_temp28_input.dev_attr.attr, | |
1116 | &sensor_dev_attr_temp29_input.dev_attr.attr, | |
1117 | &sensor_dev_attr_temp30_input.dev_attr.attr, | |
1118 | &sensor_dev_attr_temp31_input.dev_attr.attr, | |
1119 | &sensor_dev_attr_temp32_input.dev_attr.attr, | |
1120 | &sensor_dev_attr_temp33_input.dev_attr.attr, | |
1121 | &sensor_dev_attr_temp34_input.dev_attr.attr, | |
1122 | &sensor_dev_attr_temp35_input.dev_attr.attr, | |
6f2fad74 NB |
1123 | NULL |
1124 | }; | |
1125 | ||
1126 | static const struct attribute_group temperature_attributes_group = | |
1127 | { .attrs = temperature_attributes }; | |
1128 | ||
1129 | /* Module stuff */ | |
1130 | ||
1131 | /* | |
1132 | * applesmc_dmi_match - found a match. return one, short-circuiting the hunt. | |
1133 | */ | |
1855256c | 1134 | static int applesmc_dmi_match(const struct dmi_system_id *id) |
6f2fad74 NB |
1135 | { |
1136 | int i = 0; | |
1137 | struct dmi_match_data* dmi_data = id->driver_data; | |
1138 | printk(KERN_INFO "applesmc: %s detected:\n", id->ident); | |
1139 | applesmc_accelerometer = dmi_data->accelerometer; | |
1140 | printk(KERN_INFO "applesmc: - Model %s accelerometer\n", | |
1141 | applesmc_accelerometer ? "with" : "without"); | |
1142 | applesmc_light = dmi_data->light; | |
1143 | printk(KERN_INFO "applesmc: - Model %s light sensors and backlight\n", | |
1144 | applesmc_light ? "with" : "without"); | |
1145 | ||
1146 | applesmc_temperature_set = dmi_data->temperature_set; | |
1147 | while (temperature_sensors_sets[applesmc_temperature_set][i] != NULL) | |
1148 | i++; | |
1149 | printk(KERN_INFO "applesmc: - Model with %d temperature sensors\n", i); | |
1150 | return 1; | |
1151 | } | |
1152 | ||
1153 | /* Create accelerometer ressources */ | |
1154 | static int applesmc_create_accelerometer(void) | |
1155 | { | |
d5cf2b99 | 1156 | struct input_dev *idev; |
6f2fad74 NB |
1157 | int ret; |
1158 | ||
1159 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1160 | &accelerometer_attributes_group); | |
1161 | if (ret) | |
1162 | goto out; | |
1163 | ||
d5cf2b99 | 1164 | applesmc_idev = input_allocate_polled_device(); |
6f2fad74 NB |
1165 | if (!applesmc_idev) { |
1166 | ret = -ENOMEM; | |
1167 | goto out_sysfs; | |
1168 | } | |
1169 | ||
d5cf2b99 DT |
1170 | applesmc_idev->poll = applesmc_idev_poll; |
1171 | applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL; | |
1172 | ||
6f2fad74 NB |
1173 | /* initial calibrate for the input device */ |
1174 | applesmc_calibrate(); | |
1175 | ||
d5cf2b99 DT |
1176 | /* initialize the input device */ |
1177 | idev = applesmc_idev->input; | |
1178 | idev->name = "applesmc"; | |
1179 | idev->id.bustype = BUS_HOST; | |
1180 | idev->dev.parent = &pdev->dev; | |
7b19ada2 | 1181 | idev->evbit[0] = BIT_MASK(EV_ABS); |
d5cf2b99 | 1182 | input_set_abs_params(idev, ABS_X, |
6f2fad74 | 1183 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
d5cf2b99 | 1184 | input_set_abs_params(idev, ABS_Y, |
6f2fad74 NB |
1185 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
1186 | ||
d5cf2b99 | 1187 | ret = input_register_polled_device(applesmc_idev); |
6f2fad74 NB |
1188 | if (ret) |
1189 | goto out_idev; | |
1190 | ||
6f2fad74 NB |
1191 | return 0; |
1192 | ||
1193 | out_idev: | |
d5cf2b99 | 1194 | input_free_polled_device(applesmc_idev); |
6f2fad74 NB |
1195 | |
1196 | out_sysfs: | |
1197 | sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); | |
1198 | ||
1199 | out: | |
1200 | printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); | |
1201 | return ret; | |
1202 | } | |
1203 | ||
1204 | /* Release all ressources used by the accelerometer */ | |
1205 | static void applesmc_release_accelerometer(void) | |
1206 | { | |
d5cf2b99 DT |
1207 | input_unregister_polled_device(applesmc_idev); |
1208 | input_free_polled_device(applesmc_idev); | |
6f2fad74 NB |
1209 | sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); |
1210 | } | |
1211 | ||
1212 | static __initdata struct dmi_match_data applesmc_dmi_data[] = { | |
1213 | /* MacBook Pro: accelerometer, backlight and temperature set 0 */ | |
1214 | { .accelerometer = 1, .light = 1, .temperature_set = 0 }, | |
1bed24b9 MS |
1215 | /* MacBook: accelerometer and temperature set 1 */ |
1216 | { .accelerometer = 1, .light = 0, .temperature_set = 1 }, | |
1217 | /* MacMini: temperature set 2 */ | |
1218 | { .accelerometer = 0, .light = 0, .temperature_set = 2 }, | |
8de57709 RR |
1219 | /* MacPro: temperature set 3 */ |
1220 | { .accelerometer = 0, .light = 0, .temperature_set = 3 }, | |
6f2fad74 NB |
1221 | }; |
1222 | ||
1223 | /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". | |
1224 | * So we need to put "Apple MacBook Pro" before "Apple MacBook". */ | |
1225 | static __initdata struct dmi_system_id applesmc_whitelist[] = { | |
1226 | { applesmc_dmi_match, "Apple MacBook Pro", { | |
1227 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1228 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") }, | |
1229 | (void*)&applesmc_dmi_data[0]}, | |
1230 | { applesmc_dmi_match, "Apple MacBook", { | |
1231 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1232 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") }, | |
1233 | (void*)&applesmc_dmi_data[1]}, | |
1234 | { applesmc_dmi_match, "Apple Macmini", { | |
1235 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1236 | DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") }, | |
1237 | (void*)&applesmc_dmi_data[2]}, | |
8de57709 RR |
1238 | { applesmc_dmi_match, "Apple MacPro2", { |
1239 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1240 | DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") }, | |
1241 | (void*)&applesmc_dmi_data[3]}, | |
6f2fad74 NB |
1242 | { .ident = NULL } |
1243 | }; | |
1244 | ||
1245 | static int __init applesmc_init(void) | |
1246 | { | |
1247 | int ret; | |
1248 | int count; | |
1249 | int i; | |
1250 | ||
6f2fad74 NB |
1251 | if (!dmi_check_system(applesmc_whitelist)) { |
1252 | printk(KERN_WARNING "applesmc: supported laptop not found!\n"); | |
1253 | ret = -ENODEV; | |
1254 | goto out; | |
1255 | } | |
1256 | ||
1257 | if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS, | |
1258 | "applesmc")) { | |
1259 | ret = -ENXIO; | |
1260 | goto out; | |
1261 | } | |
1262 | ||
1263 | ret = platform_driver_register(&applesmc_driver); | |
1264 | if (ret) | |
1265 | goto out_region; | |
1266 | ||
ddfbf2af JD |
1267 | pdev = platform_device_register_simple("applesmc", APPLESMC_DATA_PORT, |
1268 | NULL, 0); | |
6f2fad74 NB |
1269 | if (IS_ERR(pdev)) { |
1270 | ret = PTR_ERR(pdev); | |
1271 | goto out_driver; | |
1272 | } | |
1273 | ||
fa74419b | 1274 | ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr); |
6996abf0 NB |
1275 | if (ret) |
1276 | goto out_device; | |
fa74419b | 1277 | |
6f2fad74 NB |
1278 | /* Create key enumeration sysfs files */ |
1279 | ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group); | |
1280 | if (ret) | |
6996abf0 | 1281 | goto out_name; |
6f2fad74 NB |
1282 | |
1283 | /* create fan files */ | |
1284 | count = applesmc_get_fan_count(); | |
1285 | if (count < 0) { | |
1286 | printk(KERN_ERR "applesmc: Cannot get the number of fans.\n"); | |
1287 | } else { | |
1288 | printk(KERN_INFO "applesmc: %d fans found.\n", count); | |
1289 | ||
1290 | switch (count) { | |
1291 | default: | |
8de57709 RR |
1292 | printk(KERN_WARNING "applesmc: More than 4 fans found," |
1293 | " but at most 4 fans are supported" | |
6f2fad74 | 1294 | " by the driver.\n"); |
8de57709 RR |
1295 | case 4: |
1296 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1297 | &fan_attribute_groups[3]); | |
1298 | if (ret) | |
1299 | goto out_key_enumeration; | |
1300 | case 3: | |
1301 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1302 | &fan_attribute_groups[2]); | |
1303 | if (ret) | |
1304 | goto out_key_enumeration; | |
6f2fad74 NB |
1305 | case 2: |
1306 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1307 | &fan_attribute_groups[1]); | |
1308 | if (ret) | |
1309 | goto out_key_enumeration; | |
1310 | case 1: | |
1311 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1312 | &fan_attribute_groups[0]); | |
1313 | if (ret) | |
1314 | goto out_fan_1; | |
1315 | case 0: | |
1316 | ; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | for (i = 0; | |
1321 | temperature_sensors_sets[applesmc_temperature_set][i] != NULL; | |
1322 | i++) { | |
1323 | if (temperature_attributes[i] == NULL) { | |
1324 | printk(KERN_ERR "applesmc: More temperature sensors " | |
1325 | "in temperature_sensors_sets (at least %i)" | |
1326 | "than available sysfs files in " | |
1327 | "temperature_attributes (%i), please report " | |
1328 | "this bug.\n", i, i-1); | |
1329 | goto out_temperature; | |
1330 | } | |
1331 | ret = sysfs_create_file(&pdev->dev.kobj, | |
1332 | temperature_attributes[i]); | |
1333 | if (ret) | |
1334 | goto out_temperature; | |
1335 | } | |
1336 | ||
1337 | if (applesmc_accelerometer) { | |
1338 | ret = applesmc_create_accelerometer(); | |
1339 | if (ret) | |
1340 | goto out_temperature; | |
1341 | } | |
1342 | ||
1343 | if (applesmc_light) { | |
1344 | /* Add light sensor file */ | |
1345 | ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1346 | if (ret) | |
1347 | goto out_accelerometer; | |
1348 | ||
1349 | /* Create the workqueue */ | |
1350 | applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); | |
1351 | if (!applesmc_led_wq) { | |
1352 | ret = -ENOMEM; | |
1353 | goto out_light_sysfs; | |
1354 | } | |
1355 | ||
1356 | /* register as a led device */ | |
1357 | ret = led_classdev_register(&pdev->dev, &applesmc_backlight); | |
1358 | if (ret < 0) | |
1359 | goto out_light_wq; | |
1360 | } | |
1361 | ||
1beeffe4 TJ |
1362 | hwmon_dev = hwmon_device_register(&pdev->dev); |
1363 | if (IS_ERR(hwmon_dev)) { | |
1364 | ret = PTR_ERR(hwmon_dev); | |
6f2fad74 NB |
1365 | goto out_light_ledclass; |
1366 | } | |
1367 | ||
1368 | printk(KERN_INFO "applesmc: driver successfully loaded.\n"); | |
1369 | ||
1370 | return 0; | |
1371 | ||
1372 | out_light_ledclass: | |
1373 | if (applesmc_light) | |
1374 | led_classdev_unregister(&applesmc_backlight); | |
1375 | out_light_wq: | |
1376 | if (applesmc_light) | |
1377 | destroy_workqueue(applesmc_led_wq); | |
1378 | out_light_sysfs: | |
1379 | if (applesmc_light) | |
1380 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1381 | out_accelerometer: | |
1382 | if (applesmc_accelerometer) | |
1383 | applesmc_release_accelerometer(); | |
1384 | out_temperature: | |
1385 | sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); | |
1386 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); | |
1387 | out_fan_1: | |
1388 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); | |
1389 | out_key_enumeration: | |
1390 | sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); | |
6996abf0 NB |
1391 | out_name: |
1392 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); | |
6f2fad74 NB |
1393 | out_device: |
1394 | platform_device_unregister(pdev); | |
1395 | out_driver: | |
1396 | platform_driver_unregister(&applesmc_driver); | |
1397 | out_region: | |
1398 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); | |
1399 | out: | |
1400 | printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); | |
1401 | return ret; | |
1402 | } | |
1403 | ||
1404 | static void __exit applesmc_exit(void) | |
1405 | { | |
1beeffe4 | 1406 | hwmon_device_unregister(hwmon_dev); |
6f2fad74 NB |
1407 | if (applesmc_light) { |
1408 | led_classdev_unregister(&applesmc_backlight); | |
1409 | destroy_workqueue(applesmc_led_wq); | |
1410 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1411 | } | |
1412 | if (applesmc_accelerometer) | |
1413 | applesmc_release_accelerometer(); | |
1414 | sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); | |
1415 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); | |
1416 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); | |
1417 | sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); | |
6996abf0 | 1418 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); |
6f2fad74 NB |
1419 | platform_device_unregister(pdev); |
1420 | platform_driver_unregister(&applesmc_driver); | |
1421 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); | |
1422 | ||
1423 | printk(KERN_INFO "applesmc: driver unloaded.\n"); | |
1424 | } | |
1425 | ||
1426 | module_init(applesmc_init); | |
1427 | module_exit(applesmc_exit); | |
1428 | ||
1429 | MODULE_AUTHOR("Nicolas Boichat"); | |
1430 | MODULE_DESCRIPTION("Apple SMC"); | |
1431 | MODULE_LICENSE("GPL v2"); |