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