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 }, | |
cd19ba13 RO |
87 | /* Set 1: Macbook2 set */ |
88 | { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "TTF0", "Th0H", | |
89 | "Th0S", "Th1H", NULL }, | |
90 | /* Set 2: Macbook set */ | |
1bed24b9 MS |
91 | { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S", |
92 | "Th1H", "Ts0P", NULL }, | |
cd19ba13 | 93 | /* Set 3: Macmini set */ |
8de57709 | 94 | { "TC0D", "TC0P", NULL }, |
cd19ba13 | 95 | /* Set 4: Mac Pro (2 x Quad-Core) */ |
8de57709 RR |
96 | { "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P", |
97 | "TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P", | |
98 | "TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S", | |
99 | "TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P", | |
100 | "TM9S", "TN0H", "TS0C", NULL }, | |
9f86f28d RDI |
101 | /* Set 5: iMac */ |
102 | { "TC0D", "TA0P", "TG0P", "TG0D", "TG0H", "TH0P", "Tm0P", "TO0P", | |
103 | "Tp0C", NULL }, | |
f91a79fe GS |
104 | /* Set 6: Macbook3 set */ |
105 | { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TTF0", "TW0P", "Th0H", | |
106 | "Th0S", "Th1H", NULL }, | |
6f2fad74 NB |
107 | }; |
108 | ||
109 | /* List of keys used to read/write fan speeds */ | |
110 | static const char* fan_speed_keys[] = { | |
111 | FAN_ACTUAL_SPEED, | |
112 | FAN_MIN_SPEED, | |
113 | FAN_MAX_SPEED, | |
114 | FAN_SAFE_SPEED, | |
115 | FAN_TARGET_SPEED | |
116 | }; | |
117 | ||
118 | #define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */ | |
119 | #define INIT_WAIT_MSECS 50 /* ... in 50ms increments */ | |
120 | ||
d5cf2b99 | 121 | #define APPLESMC_POLL_INTERVAL 50 /* msecs */ |
6f2fad74 NB |
122 | #define APPLESMC_INPUT_FUZZ 4 /* input event threshold */ |
123 | #define APPLESMC_INPUT_FLAT 4 | |
124 | ||
125 | #define SENSOR_X 0 | |
126 | #define SENSOR_Y 1 | |
127 | #define SENSOR_Z 2 | |
128 | ||
129 | /* Structure to be passed to DMI_MATCH function */ | |
130 | struct dmi_match_data { | |
131 | /* Indicates whether this computer has an accelerometer. */ | |
132 | int accelerometer; | |
133 | /* Indicates whether this computer has light sensors and keyboard backlight. */ | |
134 | int light; | |
135 | /* Indicates which temperature sensors set to use. */ | |
136 | int temperature_set; | |
137 | }; | |
138 | ||
139 | static const int debug; | |
140 | static struct platform_device *pdev; | |
141 | static s16 rest_x; | |
142 | static s16 rest_y; | |
1beeffe4 | 143 | static struct device *hwmon_dev; |
d5cf2b99 | 144 | static struct input_polled_dev *applesmc_idev; |
6f2fad74 NB |
145 | |
146 | /* Indicates whether this computer has an accelerometer. */ | |
147 | static unsigned int applesmc_accelerometer; | |
148 | ||
149 | /* Indicates whether this computer has light sensors and keyboard backlight. */ | |
150 | static unsigned int applesmc_light; | |
151 | ||
152 | /* Indicates which temperature sensors set to use. */ | |
153 | static unsigned int applesmc_temperature_set; | |
154 | ||
d5cf2b99 | 155 | static DEFINE_MUTEX(applesmc_lock); |
6f2fad74 NB |
156 | |
157 | /* | |
158 | * Last index written to key_at_index sysfs file, and value to use for all other | |
159 | * key_at_index_* sysfs files. | |
160 | */ | |
161 | static unsigned int key_at_index; | |
162 | ||
163 | static struct workqueue_struct *applesmc_led_wq; | |
164 | ||
165 | /* | |
166 | * __wait_status - Wait up to 2ms for the status port to get a certain value | |
167 | * (masked with 0x0f), returning zero if the value is obtained. Callers must | |
168 | * hold applesmc_lock. | |
169 | */ | |
170 | static int __wait_status(u8 val) | |
171 | { | |
172 | unsigned int i; | |
173 | ||
174 | val = val & APPLESMC_STATUS_MASK; | |
175 | ||
176 | for (i = 0; i < 200; i++) { | |
177 | if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) { | |
178 | if (debug) | |
179 | printk(KERN_DEBUG | |
180 | "Waited %d us for status %x\n", | |
181 | i*10, val); | |
182 | return 0; | |
183 | } | |
184 | udelay(10); | |
185 | } | |
186 | ||
187 | printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n", | |
188 | val, inb(APPLESMC_CMD_PORT)); | |
189 | ||
190 | return -EIO; | |
191 | } | |
192 | ||
193 | /* | |
194 | * applesmc_read_key - reads len bytes from a given key, and put them in buffer. | |
195 | * Returns zero on success or a negative error on failure. Callers must | |
196 | * hold applesmc_lock. | |
197 | */ | |
198 | static int applesmc_read_key(const char* key, u8* buffer, u8 len) | |
199 | { | |
200 | int i; | |
201 | ||
202 | if (len > APPLESMC_MAX_DATA_LENGTH) { | |
203 | printk(KERN_ERR "applesmc_read_key: cannot read more than " | |
204 | "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); | |
205 | return -EINVAL; | |
206 | } | |
207 | ||
208 | outb(APPLESMC_READ_CMD, APPLESMC_CMD_PORT); | |
209 | if (__wait_status(0x0c)) | |
210 | return -EIO; | |
211 | ||
212 | for (i = 0; i < 4; i++) { | |
213 | outb(key[i], APPLESMC_DATA_PORT); | |
214 | if (__wait_status(0x04)) | |
215 | return -EIO; | |
216 | } | |
217 | if (debug) | |
218 | printk(KERN_DEBUG "<%s", key); | |
219 | ||
220 | outb(len, APPLESMC_DATA_PORT); | |
221 | if (debug) | |
222 | printk(KERN_DEBUG ">%x", len); | |
223 | ||
224 | for (i = 0; i < len; i++) { | |
225 | if (__wait_status(0x05)) | |
226 | return -EIO; | |
227 | buffer[i] = inb(APPLESMC_DATA_PORT); | |
228 | if (debug) | |
229 | printk(KERN_DEBUG "<%x", buffer[i]); | |
230 | } | |
231 | if (debug) | |
232 | printk(KERN_DEBUG "\n"); | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | /* | |
238 | * applesmc_write_key - writes len bytes from buffer to a given key. | |
239 | * Returns zero on success or a negative error on failure. Callers must | |
240 | * hold applesmc_lock. | |
241 | */ | |
242 | static int applesmc_write_key(const char* key, u8* buffer, u8 len) | |
243 | { | |
244 | int i; | |
245 | ||
246 | if (len > APPLESMC_MAX_DATA_LENGTH) { | |
247 | printk(KERN_ERR "applesmc_write_key: cannot write more than " | |
248 | "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); | |
249 | return -EINVAL; | |
250 | } | |
251 | ||
252 | outb(APPLESMC_WRITE_CMD, APPLESMC_CMD_PORT); | |
253 | if (__wait_status(0x0c)) | |
254 | return -EIO; | |
255 | ||
256 | for (i = 0; i < 4; i++) { | |
257 | outb(key[i], APPLESMC_DATA_PORT); | |
258 | if (__wait_status(0x04)) | |
259 | return -EIO; | |
260 | } | |
261 | ||
262 | outb(len, APPLESMC_DATA_PORT); | |
263 | ||
264 | for (i = 0; i < len; i++) { | |
265 | if (__wait_status(0x04)) | |
266 | return -EIO; | |
267 | outb(buffer[i], APPLESMC_DATA_PORT); | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | /* | |
274 | * applesmc_get_key_at_index - get key at index, and put the result in key | |
275 | * (char[6]). Returns zero on success or a negative error on failure. Callers | |
276 | * must hold applesmc_lock. | |
277 | */ | |
278 | static int applesmc_get_key_at_index(int index, char* key) | |
279 | { | |
280 | int i; | |
281 | u8 readkey[4]; | |
282 | readkey[0] = index >> 24; | |
283 | readkey[1] = index >> 16; | |
284 | readkey[2] = index >> 8; | |
285 | readkey[3] = index; | |
286 | ||
287 | outb(APPLESMC_GET_KEY_BY_INDEX_CMD, APPLESMC_CMD_PORT); | |
288 | if (__wait_status(0x0c)) | |
289 | return -EIO; | |
290 | ||
291 | for (i = 0; i < 4; i++) { | |
292 | outb(readkey[i], APPLESMC_DATA_PORT); | |
293 | if (__wait_status(0x04)) | |
294 | return -EIO; | |
295 | } | |
296 | ||
297 | outb(4, APPLESMC_DATA_PORT); | |
298 | ||
299 | for (i = 0; i < 4; i++) { | |
300 | if (__wait_status(0x05)) | |
301 | return -EIO; | |
302 | key[i] = inb(APPLESMC_DATA_PORT); | |
303 | } | |
304 | key[4] = 0; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | /* | |
310 | * applesmc_get_key_type - get key type, and put the result in type (char[6]). | |
311 | * Returns zero on success or a negative error on failure. Callers must | |
312 | * hold applesmc_lock. | |
313 | */ | |
314 | static int applesmc_get_key_type(char* key, char* type) | |
315 | { | |
316 | int i; | |
317 | ||
318 | outb(APPLESMC_GET_KEY_TYPE_CMD, APPLESMC_CMD_PORT); | |
319 | if (__wait_status(0x0c)) | |
320 | return -EIO; | |
321 | ||
322 | for (i = 0; i < 4; i++) { | |
323 | outb(key[i], APPLESMC_DATA_PORT); | |
324 | if (__wait_status(0x04)) | |
325 | return -EIO; | |
326 | } | |
327 | ||
328 | outb(5, APPLESMC_DATA_PORT); | |
329 | ||
330 | for (i = 0; i < 6; i++) { | |
331 | if (__wait_status(0x05)) | |
332 | return -EIO; | |
333 | type[i] = inb(APPLESMC_DATA_PORT); | |
334 | } | |
335 | type[5] = 0; | |
336 | ||
337 | return 0; | |
338 | } | |
339 | ||
340 | /* | |
341 | * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must | |
342 | * hold applesmc_lock. | |
343 | */ | |
344 | static int applesmc_read_motion_sensor(int index, s16* value) | |
345 | { | |
346 | u8 buffer[2]; | |
347 | int ret; | |
348 | ||
349 | switch (index) { | |
350 | case SENSOR_X: | |
351 | ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2); | |
352 | break; | |
353 | case SENSOR_Y: | |
354 | ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2); | |
355 | break; | |
356 | case SENSOR_Z: | |
357 | ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2); | |
358 | break; | |
359 | default: | |
360 | ret = -EINVAL; | |
361 | } | |
362 | ||
363 | *value = ((s16)buffer[0] << 8) | buffer[1]; | |
364 | ||
365 | return ret; | |
366 | } | |
367 | ||
368 | /* | |
369 | * applesmc_device_init - initialize the accelerometer. Returns zero on success | |
370 | * and negative error code on failure. Can sleep. | |
371 | */ | |
372 | static int applesmc_device_init(void) | |
373 | { | |
374 | int total, ret = -ENXIO; | |
375 | u8 buffer[2]; | |
376 | ||
377 | if (!applesmc_accelerometer) | |
378 | return 0; | |
379 | ||
380 | mutex_lock(&applesmc_lock); | |
381 | ||
382 | for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) { | |
383 | if (debug) | |
384 | printk(KERN_DEBUG "applesmc try %d\n", total); | |
385 | if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) && | |
386 | (buffer[0] != 0x00 || buffer[1] != 0x00)) { | |
387 | if (total == INIT_TIMEOUT_MSECS) { | |
388 | printk(KERN_DEBUG "applesmc: device has" | |
389 | " already been initialized" | |
390 | " (0x%02x, 0x%02x).\n", | |
391 | buffer[0], buffer[1]); | |
392 | } else { | |
393 | printk(KERN_DEBUG "applesmc: device" | |
394 | " successfully initialized" | |
395 | " (0x%02x, 0x%02x).\n", | |
396 | buffer[0], buffer[1]); | |
397 | } | |
398 | ret = 0; | |
399 | goto out; | |
400 | } | |
401 | buffer[0] = 0xe0; | |
402 | buffer[1] = 0x00; | |
403 | applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2); | |
404 | msleep(INIT_WAIT_MSECS); | |
405 | } | |
406 | ||
407 | printk(KERN_WARNING "applesmc: failed to init the device\n"); | |
408 | ||
409 | out: | |
410 | mutex_unlock(&applesmc_lock); | |
411 | return ret; | |
412 | } | |
413 | ||
414 | /* | |
415 | * applesmc_get_fan_count - get the number of fans. Callers must NOT hold | |
416 | * applesmc_lock. | |
417 | */ | |
418 | static int applesmc_get_fan_count(void) | |
419 | { | |
420 | int ret; | |
421 | u8 buffer[1]; | |
422 | ||
423 | mutex_lock(&applesmc_lock); | |
424 | ||
425 | ret = applesmc_read_key(FANS_COUNT, buffer, 1); | |
426 | ||
427 | mutex_unlock(&applesmc_lock); | |
428 | if (ret) | |
429 | return ret; | |
430 | else | |
431 | return buffer[0]; | |
432 | } | |
433 | ||
434 | /* Device model stuff */ | |
435 | static int applesmc_probe(struct platform_device *dev) | |
436 | { | |
437 | int ret; | |
438 | ||
439 | ret = applesmc_device_init(); | |
440 | if (ret) | |
441 | return ret; | |
442 | ||
443 | printk(KERN_INFO "applesmc: device successfully initialized.\n"); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int applesmc_resume(struct platform_device *dev) | |
448 | { | |
449 | return applesmc_device_init(); | |
450 | } | |
451 | ||
452 | static struct platform_driver applesmc_driver = { | |
453 | .probe = applesmc_probe, | |
454 | .resume = applesmc_resume, | |
455 | .driver = { | |
456 | .name = "applesmc", | |
457 | .owner = THIS_MODULE, | |
458 | }, | |
459 | }; | |
460 | ||
461 | /* | |
462 | * applesmc_calibrate - Set our "resting" values. Callers must | |
463 | * hold applesmc_lock. | |
464 | */ | |
465 | static void applesmc_calibrate(void) | |
466 | { | |
467 | applesmc_read_motion_sensor(SENSOR_X, &rest_x); | |
468 | applesmc_read_motion_sensor(SENSOR_Y, &rest_y); | |
469 | rest_x = -rest_x; | |
470 | } | |
471 | ||
d5cf2b99 | 472 | static void applesmc_idev_poll(struct input_polled_dev *dev) |
6f2fad74 | 473 | { |
d5cf2b99 | 474 | struct input_dev *idev = dev->input; |
6f2fad74 NB |
475 | s16 x, y; |
476 | ||
d5cf2b99 | 477 | mutex_lock(&applesmc_lock); |
6f2fad74 NB |
478 | |
479 | if (applesmc_read_motion_sensor(SENSOR_X, &x)) | |
480 | goto out; | |
481 | if (applesmc_read_motion_sensor(SENSOR_Y, &y)) | |
482 | goto out; | |
483 | ||
484 | x = -x; | |
d5cf2b99 DT |
485 | input_report_abs(idev, ABS_X, x - rest_x); |
486 | input_report_abs(idev, ABS_Y, y - rest_y); | |
487 | input_sync(idev); | |
6f2fad74 NB |
488 | |
489 | out: | |
6f2fad74 NB |
490 | mutex_unlock(&applesmc_lock); |
491 | } | |
492 | ||
493 | /* Sysfs Files */ | |
494 | ||
fa74419b NB |
495 | static ssize_t applesmc_name_show(struct device *dev, |
496 | struct device_attribute *attr, char *buf) | |
497 | { | |
498 | return snprintf(buf, PAGE_SIZE, "applesmc\n"); | |
499 | } | |
500 | ||
6f2fad74 NB |
501 | static ssize_t applesmc_position_show(struct device *dev, |
502 | struct device_attribute *attr, char *buf) | |
503 | { | |
504 | int ret; | |
505 | s16 x, y, z; | |
506 | ||
507 | mutex_lock(&applesmc_lock); | |
508 | ||
509 | ret = applesmc_read_motion_sensor(SENSOR_X, &x); | |
510 | if (ret) | |
511 | goto out; | |
512 | ret = applesmc_read_motion_sensor(SENSOR_Y, &y); | |
513 | if (ret) | |
514 | goto out; | |
515 | ret = applesmc_read_motion_sensor(SENSOR_Z, &z); | |
516 | if (ret) | |
517 | goto out; | |
518 | ||
519 | out: | |
520 | mutex_unlock(&applesmc_lock); | |
521 | if (ret) | |
522 | return ret; | |
523 | else | |
524 | return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z); | |
525 | } | |
526 | ||
527 | static ssize_t applesmc_light_show(struct device *dev, | |
528 | struct device_attribute *attr, char *sysfsbuf) | |
529 | { | |
530 | int ret; | |
531 | u8 left = 0, right = 0; | |
532 | u8 buffer[6]; | |
533 | ||
534 | mutex_lock(&applesmc_lock); | |
535 | ||
536 | ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, 6); | |
537 | left = buffer[2]; | |
538 | if (ret) | |
539 | goto out; | |
540 | ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, 6); | |
541 | right = buffer[2]; | |
542 | ||
543 | out: | |
544 | mutex_unlock(&applesmc_lock); | |
545 | if (ret) | |
546 | return ret; | |
547 | else | |
548 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right); | |
549 | } | |
550 | ||
551 | /* Displays degree Celsius * 1000 */ | |
552 | static ssize_t applesmc_show_temperature(struct device *dev, | |
553 | struct device_attribute *devattr, char *sysfsbuf) | |
554 | { | |
555 | int ret; | |
556 | u8 buffer[2]; | |
557 | unsigned int temp; | |
558 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
559 | const char* key = | |
560 | temperature_sensors_sets[applesmc_temperature_set][attr->index]; | |
561 | ||
562 | mutex_lock(&applesmc_lock); | |
563 | ||
564 | ret = applesmc_read_key(key, buffer, 2); | |
565 | temp = buffer[0]*1000; | |
566 | temp += (buffer[1] >> 6) * 250; | |
567 | ||
568 | mutex_unlock(&applesmc_lock); | |
569 | ||
570 | if (ret) | |
571 | return ret; | |
572 | else | |
573 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp); | |
574 | } | |
575 | ||
576 | static ssize_t applesmc_show_fan_speed(struct device *dev, | |
577 | struct device_attribute *attr, char *sysfsbuf) | |
578 | { | |
579 | int ret; | |
580 | unsigned int speed = 0; | |
581 | char newkey[5]; | |
582 | u8 buffer[2]; | |
583 | struct sensor_device_attribute_2 *sensor_attr = | |
584 | to_sensor_dev_attr_2(attr); | |
585 | ||
586 | newkey[0] = fan_speed_keys[sensor_attr->nr][0]; | |
587 | newkey[1] = '0' + sensor_attr->index; | |
588 | newkey[2] = fan_speed_keys[sensor_attr->nr][2]; | |
589 | newkey[3] = fan_speed_keys[sensor_attr->nr][3]; | |
590 | newkey[4] = 0; | |
591 | ||
592 | mutex_lock(&applesmc_lock); | |
593 | ||
594 | ret = applesmc_read_key(newkey, buffer, 2); | |
595 | speed = ((buffer[0] << 8 | buffer[1]) >> 2); | |
596 | ||
597 | mutex_unlock(&applesmc_lock); | |
598 | if (ret) | |
599 | return ret; | |
600 | else | |
601 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed); | |
602 | } | |
603 | ||
604 | static ssize_t applesmc_store_fan_speed(struct device *dev, | |
605 | struct device_attribute *attr, | |
606 | const char *sysfsbuf, size_t count) | |
607 | { | |
608 | int ret; | |
609 | u32 speed; | |
610 | char newkey[5]; | |
611 | u8 buffer[2]; | |
612 | struct sensor_device_attribute_2 *sensor_attr = | |
613 | to_sensor_dev_attr_2(attr); | |
614 | ||
615 | speed = simple_strtoul(sysfsbuf, NULL, 10); | |
616 | ||
617 | if (speed > 0x4000) /* Bigger than a 14-bit value */ | |
618 | return -EINVAL; | |
619 | ||
620 | newkey[0] = fan_speed_keys[sensor_attr->nr][0]; | |
621 | newkey[1] = '0' + sensor_attr->index; | |
622 | newkey[2] = fan_speed_keys[sensor_attr->nr][2]; | |
623 | newkey[3] = fan_speed_keys[sensor_attr->nr][3]; | |
624 | newkey[4] = 0; | |
625 | ||
626 | mutex_lock(&applesmc_lock); | |
627 | ||
628 | buffer[0] = (speed >> 6) & 0xff; | |
629 | buffer[1] = (speed << 2) & 0xff; | |
630 | ret = applesmc_write_key(newkey, buffer, 2); | |
631 | ||
632 | mutex_unlock(&applesmc_lock); | |
633 | if (ret) | |
634 | return ret; | |
635 | else | |
636 | return count; | |
637 | } | |
638 | ||
639 | static ssize_t applesmc_show_fan_manual(struct device *dev, | |
640 | struct device_attribute *devattr, char *sysfsbuf) | |
641 | { | |
642 | int ret; | |
643 | u16 manual = 0; | |
644 | u8 buffer[2]; | |
645 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
646 | ||
647 | mutex_lock(&applesmc_lock); | |
648 | ||
649 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); | |
650 | manual = ((buffer[0] << 8 | buffer[1]) >> attr->index) & 0x01; | |
651 | ||
652 | mutex_unlock(&applesmc_lock); | |
653 | if (ret) | |
654 | return ret; | |
655 | else | |
656 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual); | |
657 | } | |
658 | ||
659 | static ssize_t applesmc_store_fan_manual(struct device *dev, | |
660 | struct device_attribute *devattr, | |
661 | const char *sysfsbuf, size_t count) | |
662 | { | |
663 | int ret; | |
664 | u8 buffer[2]; | |
665 | u32 input; | |
666 | u16 val; | |
667 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
668 | ||
669 | input = simple_strtoul(sysfsbuf, NULL, 10); | |
670 | ||
671 | mutex_lock(&applesmc_lock); | |
672 | ||
673 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); | |
674 | val = (buffer[0] << 8 | buffer[1]); | |
675 | if (ret) | |
676 | goto out; | |
677 | ||
678 | if (input) | |
679 | val = val | (0x01 << attr->index); | |
680 | else | |
681 | val = val & ~(0x01 << attr->index); | |
682 | ||
683 | buffer[0] = (val >> 8) & 0xFF; | |
684 | buffer[1] = val & 0xFF; | |
685 | ||
686 | ret = applesmc_write_key(FANS_MANUAL, buffer, 2); | |
687 | ||
688 | out: | |
689 | mutex_unlock(&applesmc_lock); | |
690 | if (ret) | |
691 | return ret; | |
692 | else | |
693 | return count; | |
694 | } | |
695 | ||
696 | static ssize_t applesmc_show_fan_position(struct device *dev, | |
697 | struct device_attribute *attr, char *sysfsbuf) | |
698 | { | |
699 | int ret; | |
700 | char newkey[5]; | |
701 | u8 buffer[17]; | |
702 | struct sensor_device_attribute_2 *sensor_attr = | |
703 | to_sensor_dev_attr_2(attr); | |
704 | ||
705 | newkey[0] = FAN_POSITION[0]; | |
706 | newkey[1] = '0' + sensor_attr->index; | |
707 | newkey[2] = FAN_POSITION[2]; | |
708 | newkey[3] = FAN_POSITION[3]; | |
709 | newkey[4] = 0; | |
710 | ||
711 | mutex_lock(&applesmc_lock); | |
712 | ||
713 | ret = applesmc_read_key(newkey, buffer, 16); | |
714 | buffer[16] = 0; | |
715 | ||
716 | mutex_unlock(&applesmc_lock); | |
717 | if (ret) | |
718 | return ret; | |
719 | else | |
720 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4); | |
721 | } | |
722 | ||
723 | static ssize_t applesmc_calibrate_show(struct device *dev, | |
724 | struct device_attribute *attr, char *sysfsbuf) | |
725 | { | |
726 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y); | |
727 | } | |
728 | ||
729 | static ssize_t applesmc_calibrate_store(struct device *dev, | |
730 | struct device_attribute *attr, const char *sysfsbuf, size_t count) | |
731 | { | |
732 | mutex_lock(&applesmc_lock); | |
733 | applesmc_calibrate(); | |
734 | mutex_unlock(&applesmc_lock); | |
735 | ||
736 | return count; | |
737 | } | |
738 | ||
739 | /* Store the next backlight value to be written by the work */ | |
740 | static unsigned int backlight_value; | |
741 | ||
742 | static void applesmc_backlight_set(struct work_struct *work) | |
743 | { | |
744 | u8 buffer[2]; | |
745 | ||
746 | mutex_lock(&applesmc_lock); | |
747 | buffer[0] = backlight_value; | |
748 | buffer[1] = 0x00; | |
749 | applesmc_write_key(BACKLIGHT_KEY, buffer, 2); | |
750 | mutex_unlock(&applesmc_lock); | |
751 | } | |
752 | static DECLARE_WORK(backlight_work, &applesmc_backlight_set); | |
753 | ||
754 | static void applesmc_brightness_set(struct led_classdev *led_cdev, | |
755 | enum led_brightness value) | |
756 | { | |
757 | int ret; | |
758 | ||
759 | backlight_value = value; | |
760 | ret = queue_work(applesmc_led_wq, &backlight_work); | |
761 | ||
762 | if (debug && (!ret)) | |
763 | printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); | |
764 | } | |
765 | ||
766 | static ssize_t applesmc_key_count_show(struct device *dev, | |
767 | struct device_attribute *attr, char *sysfsbuf) | |
768 | { | |
769 | int ret; | |
770 | u8 buffer[4]; | |
771 | u32 count; | |
772 | ||
773 | mutex_lock(&applesmc_lock); | |
774 | ||
775 | ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4); | |
776 | count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) + | |
777 | ((u32)buffer[2]<<8) + buffer[3]; | |
778 | ||
779 | mutex_unlock(&applesmc_lock); | |
780 | if (ret) | |
781 | return ret; | |
782 | else | |
783 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count); | |
784 | } | |
785 | ||
786 | static ssize_t applesmc_key_at_index_read_show(struct device *dev, | |
787 | struct device_attribute *attr, char *sysfsbuf) | |
788 | { | |
789 | char key[5]; | |
790 | char info[6]; | |
791 | int ret; | |
792 | ||
793 | mutex_lock(&applesmc_lock); | |
794 | ||
795 | ret = applesmc_get_key_at_index(key_at_index, key); | |
796 | ||
797 | if (ret || !key[0]) { | |
798 | mutex_unlock(&applesmc_lock); | |
799 | ||
800 | return -EINVAL; | |
801 | } | |
802 | ||
803 | ret = applesmc_get_key_type(key, info); | |
804 | ||
805 | if (ret) { | |
806 | mutex_unlock(&applesmc_lock); | |
807 | ||
808 | return ret; | |
809 | } | |
810 | ||
811 | /* | |
812 | * info[0] maximum value (APPLESMC_MAX_DATA_LENGTH) is much lower than | |
813 | * PAGE_SIZE, so we don't need any checks before writing to sysfsbuf. | |
814 | */ | |
815 | ret = applesmc_read_key(key, sysfsbuf, info[0]); | |
816 | ||
817 | mutex_unlock(&applesmc_lock); | |
818 | ||
819 | if (!ret) { | |
820 | return info[0]; | |
d5cf2b99 | 821 | } else { |
6f2fad74 NB |
822 | return ret; |
823 | } | |
824 | } | |
825 | ||
826 | static ssize_t applesmc_key_at_index_data_length_show(struct device *dev, | |
827 | struct device_attribute *attr, char *sysfsbuf) | |
828 | { | |
829 | char key[5]; | |
830 | char info[6]; | |
831 | int ret; | |
832 | ||
833 | mutex_lock(&applesmc_lock); | |
834 | ||
835 | ret = applesmc_get_key_at_index(key_at_index, key); | |
836 | ||
837 | if (ret || !key[0]) { | |
838 | mutex_unlock(&applesmc_lock); | |
839 | ||
840 | return -EINVAL; | |
841 | } | |
842 | ||
843 | ret = applesmc_get_key_type(key, info); | |
844 | ||
845 | mutex_unlock(&applesmc_lock); | |
846 | ||
847 | if (!ret) | |
848 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", info[0]); | |
849 | else | |
850 | return ret; | |
851 | } | |
852 | ||
853 | static ssize_t applesmc_key_at_index_type_show(struct device *dev, | |
854 | struct device_attribute *attr, char *sysfsbuf) | |
855 | { | |
856 | char key[5]; | |
857 | char info[6]; | |
858 | int ret; | |
859 | ||
860 | mutex_lock(&applesmc_lock); | |
861 | ||
862 | ret = applesmc_get_key_at_index(key_at_index, key); | |
863 | ||
864 | if (ret || !key[0]) { | |
865 | mutex_unlock(&applesmc_lock); | |
866 | ||
867 | return -EINVAL; | |
868 | } | |
869 | ||
870 | ret = applesmc_get_key_type(key, info); | |
871 | ||
872 | mutex_unlock(&applesmc_lock); | |
873 | ||
874 | if (!ret) | |
875 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", info+1); | |
876 | else | |
877 | return ret; | |
878 | } | |
879 | ||
880 | static ssize_t applesmc_key_at_index_name_show(struct device *dev, | |
881 | struct device_attribute *attr, char *sysfsbuf) | |
882 | { | |
883 | char key[5]; | |
884 | int ret; | |
885 | ||
886 | mutex_lock(&applesmc_lock); | |
887 | ||
888 | ret = applesmc_get_key_at_index(key_at_index, key); | |
889 | ||
890 | mutex_unlock(&applesmc_lock); | |
891 | ||
892 | if (!ret && key[0]) | |
893 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key); | |
894 | else | |
895 | return -EINVAL; | |
896 | } | |
897 | ||
898 | static ssize_t applesmc_key_at_index_show(struct device *dev, | |
899 | struct device_attribute *attr, char *sysfsbuf) | |
900 | { | |
901 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index); | |
902 | } | |
903 | ||
904 | static ssize_t applesmc_key_at_index_store(struct device *dev, | |
905 | struct device_attribute *attr, const char *sysfsbuf, size_t count) | |
906 | { | |
907 | mutex_lock(&applesmc_lock); | |
908 | ||
909 | key_at_index = simple_strtoul(sysfsbuf, NULL, 10); | |
910 | ||
911 | mutex_unlock(&applesmc_lock); | |
912 | ||
913 | return count; | |
914 | } | |
915 | ||
916 | static struct led_classdev applesmc_backlight = { | |
6c152bee | 917 | .name = "smc::kbd_backlight", |
6f2fad74 NB |
918 | .default_trigger = "nand-disk", |
919 | .brightness_set = applesmc_brightness_set, | |
920 | }; | |
921 | ||
fa74419b NB |
922 | static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL); |
923 | ||
6f2fad74 NB |
924 | static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL); |
925 | static DEVICE_ATTR(calibrate, 0644, | |
926 | applesmc_calibrate_show, applesmc_calibrate_store); | |
927 | ||
928 | static struct attribute *accelerometer_attributes[] = { | |
929 | &dev_attr_position.attr, | |
930 | &dev_attr_calibrate.attr, | |
931 | NULL | |
932 | }; | |
933 | ||
934 | static const struct attribute_group accelerometer_attributes_group = | |
935 | { .attrs = accelerometer_attributes }; | |
936 | ||
937 | static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL); | |
938 | ||
939 | static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL); | |
940 | static DEVICE_ATTR(key_at_index, 0644, | |
941 | applesmc_key_at_index_show, applesmc_key_at_index_store); | |
942 | static DEVICE_ATTR(key_at_index_name, 0444, | |
943 | applesmc_key_at_index_name_show, NULL); | |
944 | static DEVICE_ATTR(key_at_index_type, 0444, | |
945 | applesmc_key_at_index_type_show, NULL); | |
946 | static DEVICE_ATTR(key_at_index_data_length, 0444, | |
947 | applesmc_key_at_index_data_length_show, NULL); | |
948 | static DEVICE_ATTR(key_at_index_data, 0444, | |
949 | applesmc_key_at_index_read_show, NULL); | |
950 | ||
951 | static struct attribute *key_enumeration_attributes[] = { | |
952 | &dev_attr_key_count.attr, | |
953 | &dev_attr_key_at_index.attr, | |
954 | &dev_attr_key_at_index_name.attr, | |
955 | &dev_attr_key_at_index_type.attr, | |
956 | &dev_attr_key_at_index_data_length.attr, | |
957 | &dev_attr_key_at_index_data.attr, | |
958 | NULL | |
959 | }; | |
960 | ||
961 | static const struct attribute_group key_enumeration_group = | |
962 | { .attrs = key_enumeration_attributes }; | |
963 | ||
964 | /* | |
965 | * Macro defining SENSOR_DEVICE_ATTR for a fan sysfs entries. | |
966 | * - show actual speed | |
967 | * - show/store minimum speed | |
968 | * - show maximum speed | |
969 | * - show safe speed | |
970 | * - show/store target speed | |
971 | * - show/store manual mode | |
972 | */ | |
973 | #define sysfs_fan_speeds_offset(offset) \ | |
974 | static SENSOR_DEVICE_ATTR_2(fan##offset##_input, S_IRUGO, \ | |
975 | applesmc_show_fan_speed, NULL, 0, offset-1); \ | |
976 | \ | |
977 | static SENSOR_DEVICE_ATTR_2(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
978 | applesmc_show_fan_speed, applesmc_store_fan_speed, 1, offset-1); \ | |
979 | \ | |
980 | static SENSOR_DEVICE_ATTR_2(fan##offset##_max, S_IRUGO, \ | |
981 | applesmc_show_fan_speed, NULL, 2, offset-1); \ | |
982 | \ | |
983 | static SENSOR_DEVICE_ATTR_2(fan##offset##_safe, S_IRUGO, \ | |
984 | applesmc_show_fan_speed, NULL, 3, offset-1); \ | |
985 | \ | |
986 | static SENSOR_DEVICE_ATTR_2(fan##offset##_output, S_IRUGO | S_IWUSR, \ | |
987 | applesmc_show_fan_speed, applesmc_store_fan_speed, 4, offset-1); \ | |
988 | \ | |
989 | static SENSOR_DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \ | |
990 | applesmc_show_fan_manual, applesmc_store_fan_manual, offset-1); \ | |
991 | \ | |
da4e8ca3 | 992 | static SENSOR_DEVICE_ATTR(fan##offset##_label, S_IRUGO, \ |
6f2fad74 NB |
993 | applesmc_show_fan_position, NULL, offset-1); \ |
994 | \ | |
995 | static struct attribute *fan##offset##_attributes[] = { \ | |
996 | &sensor_dev_attr_fan##offset##_input.dev_attr.attr, \ | |
997 | &sensor_dev_attr_fan##offset##_min.dev_attr.attr, \ | |
998 | &sensor_dev_attr_fan##offset##_max.dev_attr.attr, \ | |
999 | &sensor_dev_attr_fan##offset##_safe.dev_attr.attr, \ | |
1000 | &sensor_dev_attr_fan##offset##_output.dev_attr.attr, \ | |
1001 | &sensor_dev_attr_fan##offset##_manual.dev_attr.attr, \ | |
da4e8ca3 | 1002 | &sensor_dev_attr_fan##offset##_label.dev_attr.attr, \ |
6f2fad74 NB |
1003 | NULL \ |
1004 | }; | |
1005 | ||
1006 | /* | |
1007 | * Create the needed functions for each fan using the macro defined above | |
8de57709 | 1008 | * (4 fans are supported) |
6f2fad74 NB |
1009 | */ |
1010 | sysfs_fan_speeds_offset(1); | |
1011 | sysfs_fan_speeds_offset(2); | |
8de57709 RR |
1012 | sysfs_fan_speeds_offset(3); |
1013 | sysfs_fan_speeds_offset(4); | |
6f2fad74 NB |
1014 | |
1015 | static const struct attribute_group fan_attribute_groups[] = { | |
1016 | { .attrs = fan1_attributes }, | |
8de57709 RR |
1017 | { .attrs = fan2_attributes }, |
1018 | { .attrs = fan3_attributes }, | |
1019 | { .attrs = fan4_attributes }, | |
6f2fad74 NB |
1020 | }; |
1021 | ||
1022 | /* | |
1023 | * Temperature sensors sysfs entries. | |
1024 | */ | |
1025 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, | |
1026 | applesmc_show_temperature, NULL, 0); | |
1027 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, | |
1028 | applesmc_show_temperature, NULL, 1); | |
1029 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, | |
1030 | applesmc_show_temperature, NULL, 2); | |
1031 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, | |
1032 | applesmc_show_temperature, NULL, 3); | |
1033 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, | |
1034 | applesmc_show_temperature, NULL, 4); | |
1035 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, | |
1036 | applesmc_show_temperature, NULL, 5); | |
1037 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, | |
1038 | applesmc_show_temperature, NULL, 6); | |
1039 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, | |
1040 | applesmc_show_temperature, NULL, 7); | |
1041 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, | |
1042 | applesmc_show_temperature, NULL, 8); | |
1043 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, | |
1044 | applesmc_show_temperature, NULL, 9); | |
1045 | static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, | |
1046 | applesmc_show_temperature, NULL, 10); | |
1047 | static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, | |
1048 | applesmc_show_temperature, NULL, 11); | |
8de57709 RR |
1049 | static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, |
1050 | applesmc_show_temperature, NULL, 12); | |
1051 | static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, | |
1052 | applesmc_show_temperature, NULL, 13); | |
1053 | static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, | |
1054 | applesmc_show_temperature, NULL, 14); | |
1055 | static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO, | |
1056 | applesmc_show_temperature, NULL, 15); | |
1057 | static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO, | |
1058 | applesmc_show_temperature, NULL, 16); | |
1059 | static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO, | |
1060 | applesmc_show_temperature, NULL, 17); | |
1061 | static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO, | |
1062 | applesmc_show_temperature, NULL, 18); | |
1063 | static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO, | |
1064 | applesmc_show_temperature, NULL, 19); | |
1065 | static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO, | |
1066 | applesmc_show_temperature, NULL, 20); | |
1067 | static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO, | |
1068 | applesmc_show_temperature, NULL, 21); | |
1069 | static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO, | |
1070 | applesmc_show_temperature, NULL, 22); | |
1071 | static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO, | |
1072 | applesmc_show_temperature, NULL, 23); | |
1073 | static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO, | |
1074 | applesmc_show_temperature, NULL, 24); | |
1075 | static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO, | |
1076 | applesmc_show_temperature, NULL, 25); | |
1077 | static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO, | |
1078 | applesmc_show_temperature, NULL, 26); | |
1079 | static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO, | |
1080 | applesmc_show_temperature, NULL, 27); | |
1081 | static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO, | |
1082 | applesmc_show_temperature, NULL, 28); | |
1083 | static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO, | |
1084 | applesmc_show_temperature, NULL, 29); | |
1085 | static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO, | |
1086 | applesmc_show_temperature, NULL, 30); | |
1087 | static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO, | |
1088 | applesmc_show_temperature, NULL, 31); | |
1089 | static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO, | |
1090 | applesmc_show_temperature, NULL, 32); | |
1091 | static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO, | |
1092 | applesmc_show_temperature, NULL, 33); | |
1093 | static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO, | |
1094 | applesmc_show_temperature, NULL, 34); | |
6f2fad74 NB |
1095 | |
1096 | static struct attribute *temperature_attributes[] = { | |
1097 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1098 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1099 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1100 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1101 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1102 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1103 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1104 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1105 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1106 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
1107 | &sensor_dev_attr_temp11_input.dev_attr.attr, | |
1108 | &sensor_dev_attr_temp12_input.dev_attr.attr, | |
8de57709 RR |
1109 | &sensor_dev_attr_temp13_input.dev_attr.attr, |
1110 | &sensor_dev_attr_temp14_input.dev_attr.attr, | |
1111 | &sensor_dev_attr_temp15_input.dev_attr.attr, | |
1112 | &sensor_dev_attr_temp16_input.dev_attr.attr, | |
1113 | &sensor_dev_attr_temp17_input.dev_attr.attr, | |
1114 | &sensor_dev_attr_temp18_input.dev_attr.attr, | |
1115 | &sensor_dev_attr_temp19_input.dev_attr.attr, | |
1116 | &sensor_dev_attr_temp20_input.dev_attr.attr, | |
1117 | &sensor_dev_attr_temp21_input.dev_attr.attr, | |
1118 | &sensor_dev_attr_temp22_input.dev_attr.attr, | |
1119 | &sensor_dev_attr_temp23_input.dev_attr.attr, | |
1120 | &sensor_dev_attr_temp24_input.dev_attr.attr, | |
1121 | &sensor_dev_attr_temp25_input.dev_attr.attr, | |
1122 | &sensor_dev_attr_temp26_input.dev_attr.attr, | |
1123 | &sensor_dev_attr_temp27_input.dev_attr.attr, | |
1124 | &sensor_dev_attr_temp28_input.dev_attr.attr, | |
1125 | &sensor_dev_attr_temp29_input.dev_attr.attr, | |
1126 | &sensor_dev_attr_temp30_input.dev_attr.attr, | |
1127 | &sensor_dev_attr_temp31_input.dev_attr.attr, | |
1128 | &sensor_dev_attr_temp32_input.dev_attr.attr, | |
1129 | &sensor_dev_attr_temp33_input.dev_attr.attr, | |
1130 | &sensor_dev_attr_temp34_input.dev_attr.attr, | |
1131 | &sensor_dev_attr_temp35_input.dev_attr.attr, | |
6f2fad74 NB |
1132 | NULL |
1133 | }; | |
1134 | ||
1135 | static const struct attribute_group temperature_attributes_group = | |
1136 | { .attrs = temperature_attributes }; | |
1137 | ||
1138 | /* Module stuff */ | |
1139 | ||
1140 | /* | |
1141 | * applesmc_dmi_match - found a match. return one, short-circuiting the hunt. | |
1142 | */ | |
1855256c | 1143 | static int applesmc_dmi_match(const struct dmi_system_id *id) |
6f2fad74 NB |
1144 | { |
1145 | int i = 0; | |
1146 | struct dmi_match_data* dmi_data = id->driver_data; | |
1147 | printk(KERN_INFO "applesmc: %s detected:\n", id->ident); | |
1148 | applesmc_accelerometer = dmi_data->accelerometer; | |
1149 | printk(KERN_INFO "applesmc: - Model %s accelerometer\n", | |
1150 | applesmc_accelerometer ? "with" : "without"); | |
1151 | applesmc_light = dmi_data->light; | |
1152 | printk(KERN_INFO "applesmc: - Model %s light sensors and backlight\n", | |
1153 | applesmc_light ? "with" : "without"); | |
1154 | ||
1155 | applesmc_temperature_set = dmi_data->temperature_set; | |
1156 | while (temperature_sensors_sets[applesmc_temperature_set][i] != NULL) | |
1157 | i++; | |
1158 | printk(KERN_INFO "applesmc: - Model with %d temperature sensors\n", i); | |
1159 | return 1; | |
1160 | } | |
1161 | ||
1162 | /* Create accelerometer ressources */ | |
1163 | static int applesmc_create_accelerometer(void) | |
1164 | { | |
d5cf2b99 | 1165 | struct input_dev *idev; |
6f2fad74 NB |
1166 | int ret; |
1167 | ||
1168 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1169 | &accelerometer_attributes_group); | |
1170 | if (ret) | |
1171 | goto out; | |
1172 | ||
d5cf2b99 | 1173 | applesmc_idev = input_allocate_polled_device(); |
6f2fad74 NB |
1174 | if (!applesmc_idev) { |
1175 | ret = -ENOMEM; | |
1176 | goto out_sysfs; | |
1177 | } | |
1178 | ||
d5cf2b99 DT |
1179 | applesmc_idev->poll = applesmc_idev_poll; |
1180 | applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL; | |
1181 | ||
6f2fad74 NB |
1182 | /* initial calibrate for the input device */ |
1183 | applesmc_calibrate(); | |
1184 | ||
d5cf2b99 DT |
1185 | /* initialize the input device */ |
1186 | idev = applesmc_idev->input; | |
1187 | idev->name = "applesmc"; | |
1188 | idev->id.bustype = BUS_HOST; | |
1189 | idev->dev.parent = &pdev->dev; | |
7b19ada2 | 1190 | idev->evbit[0] = BIT_MASK(EV_ABS); |
d5cf2b99 | 1191 | input_set_abs_params(idev, ABS_X, |
6f2fad74 | 1192 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
d5cf2b99 | 1193 | input_set_abs_params(idev, ABS_Y, |
6f2fad74 NB |
1194 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
1195 | ||
d5cf2b99 | 1196 | ret = input_register_polled_device(applesmc_idev); |
6f2fad74 NB |
1197 | if (ret) |
1198 | goto out_idev; | |
1199 | ||
6f2fad74 NB |
1200 | return 0; |
1201 | ||
1202 | out_idev: | |
d5cf2b99 | 1203 | input_free_polled_device(applesmc_idev); |
6f2fad74 NB |
1204 | |
1205 | out_sysfs: | |
1206 | sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); | |
1207 | ||
1208 | out: | |
1209 | printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); | |
1210 | return ret; | |
1211 | } | |
1212 | ||
1213 | /* Release all ressources used by the accelerometer */ | |
1214 | static void applesmc_release_accelerometer(void) | |
1215 | { | |
d5cf2b99 DT |
1216 | input_unregister_polled_device(applesmc_idev); |
1217 | input_free_polled_device(applesmc_idev); | |
6f2fad74 NB |
1218 | sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); |
1219 | } | |
1220 | ||
1221 | static __initdata struct dmi_match_data applesmc_dmi_data[] = { | |
1222 | /* MacBook Pro: accelerometer, backlight and temperature set 0 */ | |
1223 | { .accelerometer = 1, .light = 1, .temperature_set = 0 }, | |
cd19ba13 | 1224 | /* MacBook2: accelerometer and temperature set 1 */ |
1bed24b9 | 1225 | { .accelerometer = 1, .light = 0, .temperature_set = 1 }, |
cd19ba13 RO |
1226 | /* MacBook: accelerometer and temperature set 2 */ |
1227 | { .accelerometer = 1, .light = 0, .temperature_set = 2 }, | |
1228 | /* MacMini: temperature set 3 */ | |
8de57709 | 1229 | { .accelerometer = 0, .light = 0, .temperature_set = 3 }, |
cd19ba13 RO |
1230 | /* MacPro: temperature set 4 */ |
1231 | { .accelerometer = 0, .light = 0, .temperature_set = 4 }, | |
9f86f28d RDI |
1232 | /* iMac: temperature set 5 */ |
1233 | { .accelerometer = 0, .light = 0, .temperature_set = 5 }, | |
f91a79fe GS |
1234 | /* MacBook3: accelerometer and temperature set 6 */ |
1235 | { .accelerometer = 1, .light = 0, .temperature_set = 6 }, | |
6f2fad74 NB |
1236 | }; |
1237 | ||
1238 | /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". | |
1239 | * So we need to put "Apple MacBook Pro" before "Apple MacBook". */ | |
1240 | static __initdata struct dmi_system_id applesmc_whitelist[] = { | |
1241 | { applesmc_dmi_match, "Apple MacBook Pro", { | |
1242 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1243 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") }, | |
1244 | (void*)&applesmc_dmi_data[0]}, | |
f91a79fe | 1245 | { applesmc_dmi_match, "Apple MacBook (v2)", { |
6f2fad74 | 1246 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
cd19ba13 | 1247 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBook2") }, |
6f2fad74 | 1248 | (void*)&applesmc_dmi_data[1]}, |
f91a79fe GS |
1249 | { applesmc_dmi_match, "Apple MacBook (v3)", { |
1250 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1251 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") }, | |
1252 | (void*)&applesmc_dmi_data[6]}, | |
cd19ba13 RO |
1253 | { applesmc_dmi_match, "Apple MacBook", { |
1254 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1255 | DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") }, | |
1256 | (void*)&applesmc_dmi_data[2]}, | |
6f2fad74 NB |
1257 | { applesmc_dmi_match, "Apple Macmini", { |
1258 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1259 | DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") }, | |
cd19ba13 | 1260 | (void*)&applesmc_dmi_data[3]}, |
8de57709 RR |
1261 | { applesmc_dmi_match, "Apple MacPro2", { |
1262 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1263 | DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") }, | |
cd19ba13 | 1264 | (void*)&applesmc_dmi_data[4]}, |
9f86f28d RDI |
1265 | { applesmc_dmi_match, "Apple iMac", { |
1266 | DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), | |
1267 | DMI_MATCH(DMI_PRODUCT_NAME,"iMac") }, | |
1268 | (void*)&applesmc_dmi_data[5]}, | |
6f2fad74 NB |
1269 | { .ident = NULL } |
1270 | }; | |
1271 | ||
1272 | static int __init applesmc_init(void) | |
1273 | { | |
1274 | int ret; | |
1275 | int count; | |
1276 | int i; | |
1277 | ||
6f2fad74 NB |
1278 | if (!dmi_check_system(applesmc_whitelist)) { |
1279 | printk(KERN_WARNING "applesmc: supported laptop not found!\n"); | |
1280 | ret = -ENODEV; | |
1281 | goto out; | |
1282 | } | |
1283 | ||
1284 | if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS, | |
1285 | "applesmc")) { | |
1286 | ret = -ENXIO; | |
1287 | goto out; | |
1288 | } | |
1289 | ||
1290 | ret = platform_driver_register(&applesmc_driver); | |
1291 | if (ret) | |
1292 | goto out_region; | |
1293 | ||
ddfbf2af JD |
1294 | pdev = platform_device_register_simple("applesmc", APPLESMC_DATA_PORT, |
1295 | NULL, 0); | |
6f2fad74 NB |
1296 | if (IS_ERR(pdev)) { |
1297 | ret = PTR_ERR(pdev); | |
1298 | goto out_driver; | |
1299 | } | |
1300 | ||
fa74419b | 1301 | ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr); |
6996abf0 NB |
1302 | if (ret) |
1303 | goto out_device; | |
fa74419b | 1304 | |
6f2fad74 NB |
1305 | /* Create key enumeration sysfs files */ |
1306 | ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group); | |
1307 | if (ret) | |
6996abf0 | 1308 | goto out_name; |
6f2fad74 NB |
1309 | |
1310 | /* create fan files */ | |
1311 | count = applesmc_get_fan_count(); | |
1312 | if (count < 0) { | |
1313 | printk(KERN_ERR "applesmc: Cannot get the number of fans.\n"); | |
1314 | } else { | |
1315 | printk(KERN_INFO "applesmc: %d fans found.\n", count); | |
1316 | ||
1317 | switch (count) { | |
1318 | default: | |
8de57709 RR |
1319 | printk(KERN_WARNING "applesmc: More than 4 fans found," |
1320 | " but at most 4 fans are supported" | |
6f2fad74 | 1321 | " by the driver.\n"); |
8de57709 RR |
1322 | case 4: |
1323 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1324 | &fan_attribute_groups[3]); | |
1325 | if (ret) | |
1326 | goto out_key_enumeration; | |
1327 | case 3: | |
1328 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1329 | &fan_attribute_groups[2]); | |
1330 | if (ret) | |
1331 | goto out_key_enumeration; | |
6f2fad74 NB |
1332 | case 2: |
1333 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1334 | &fan_attribute_groups[1]); | |
1335 | if (ret) | |
1336 | goto out_key_enumeration; | |
1337 | case 1: | |
1338 | ret = sysfs_create_group(&pdev->dev.kobj, | |
1339 | &fan_attribute_groups[0]); | |
1340 | if (ret) | |
1341 | goto out_fan_1; | |
1342 | case 0: | |
1343 | ; | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | for (i = 0; | |
1348 | temperature_sensors_sets[applesmc_temperature_set][i] != NULL; | |
1349 | i++) { | |
1350 | if (temperature_attributes[i] == NULL) { | |
1351 | printk(KERN_ERR "applesmc: More temperature sensors " | |
1352 | "in temperature_sensors_sets (at least %i)" | |
1353 | "than available sysfs files in " | |
1354 | "temperature_attributes (%i), please report " | |
1355 | "this bug.\n", i, i-1); | |
1356 | goto out_temperature; | |
1357 | } | |
1358 | ret = sysfs_create_file(&pdev->dev.kobj, | |
1359 | temperature_attributes[i]); | |
1360 | if (ret) | |
1361 | goto out_temperature; | |
1362 | } | |
1363 | ||
1364 | if (applesmc_accelerometer) { | |
1365 | ret = applesmc_create_accelerometer(); | |
1366 | if (ret) | |
1367 | goto out_temperature; | |
1368 | } | |
1369 | ||
1370 | if (applesmc_light) { | |
1371 | /* Add light sensor file */ | |
1372 | ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1373 | if (ret) | |
1374 | goto out_accelerometer; | |
1375 | ||
1376 | /* Create the workqueue */ | |
1377 | applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); | |
1378 | if (!applesmc_led_wq) { | |
1379 | ret = -ENOMEM; | |
1380 | goto out_light_sysfs; | |
1381 | } | |
1382 | ||
1383 | /* register as a led device */ | |
1384 | ret = led_classdev_register(&pdev->dev, &applesmc_backlight); | |
1385 | if (ret < 0) | |
1386 | goto out_light_wq; | |
1387 | } | |
1388 | ||
1beeffe4 TJ |
1389 | hwmon_dev = hwmon_device_register(&pdev->dev); |
1390 | if (IS_ERR(hwmon_dev)) { | |
1391 | ret = PTR_ERR(hwmon_dev); | |
6f2fad74 NB |
1392 | goto out_light_ledclass; |
1393 | } | |
1394 | ||
1395 | printk(KERN_INFO "applesmc: driver successfully loaded.\n"); | |
1396 | ||
1397 | return 0; | |
1398 | ||
1399 | out_light_ledclass: | |
1400 | if (applesmc_light) | |
1401 | led_classdev_unregister(&applesmc_backlight); | |
1402 | out_light_wq: | |
1403 | if (applesmc_light) | |
1404 | destroy_workqueue(applesmc_led_wq); | |
1405 | out_light_sysfs: | |
1406 | if (applesmc_light) | |
1407 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1408 | out_accelerometer: | |
1409 | if (applesmc_accelerometer) | |
1410 | applesmc_release_accelerometer(); | |
1411 | out_temperature: | |
1412 | sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); | |
1413 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); | |
1414 | out_fan_1: | |
1415 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); | |
1416 | out_key_enumeration: | |
1417 | sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); | |
6996abf0 NB |
1418 | out_name: |
1419 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); | |
6f2fad74 NB |
1420 | out_device: |
1421 | platform_device_unregister(pdev); | |
1422 | out_driver: | |
1423 | platform_driver_unregister(&applesmc_driver); | |
1424 | out_region: | |
1425 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); | |
1426 | out: | |
1427 | printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); | |
1428 | return ret; | |
1429 | } | |
1430 | ||
1431 | static void __exit applesmc_exit(void) | |
1432 | { | |
1beeffe4 | 1433 | hwmon_device_unregister(hwmon_dev); |
6f2fad74 NB |
1434 | if (applesmc_light) { |
1435 | led_classdev_unregister(&applesmc_backlight); | |
1436 | destroy_workqueue(applesmc_led_wq); | |
1437 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); | |
1438 | } | |
1439 | if (applesmc_accelerometer) | |
1440 | applesmc_release_accelerometer(); | |
1441 | sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); | |
1442 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); | |
1443 | sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); | |
1444 | sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); | |
6996abf0 | 1445 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); |
6f2fad74 NB |
1446 | platform_device_unregister(pdev); |
1447 | platform_driver_unregister(&applesmc_driver); | |
1448 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); | |
1449 | ||
1450 | printk(KERN_INFO "applesmc: driver unloaded.\n"); | |
1451 | } | |
1452 | ||
1453 | module_init(applesmc_init); | |
1454 | module_exit(applesmc_exit); | |
1455 | ||
1456 | MODULE_AUTHOR("Nicolas Boichat"); | |
1457 | MODULE_DESCRIPTION("Apple SMC"); | |
1458 | MODULE_LICENSE("GPL v2"); |