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Commit | Line | Data |
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2d70b73a GKH |
1 | /* |
2 | * Samsung Laptop driver | |
3 | * | |
4 | * Copyright (C) 2009,2011 Greg Kroah-Hartman (gregkh@suse.de) | |
5 | * Copyright (C) 2009,2011 Novell Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | */ | |
12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
13 | ||
14 | #include <linux/kernel.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/pci.h> | |
19 | #include <linux/backlight.h> | |
f674ebf1 | 20 | #include <linux/leds.h> |
2d70b73a GKH |
21 | #include <linux/fb.h> |
22 | #include <linux/dmi.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/rfkill.h> | |
f34cd9ca | 25 | #include <linux/acpi.h> |
5b80fc40 CC |
26 | #include <linux/seq_file.h> |
27 | #include <linux/debugfs.h> | |
82c333aa | 28 | #include <linux/ctype.h> |
e0094244 | 29 | #include <linux/efi.h> |
0ca849ea | 30 | #include <linux/suspend.h> |
a979e2e2 | 31 | #include <acpi/video.h> |
2d70b73a GKH |
32 | |
33 | /* | |
34 | * This driver is needed because a number of Samsung laptops do not hook | |
35 | * their control settings through ACPI. So we have to poke around in the | |
36 | * BIOS to do things like brightness values, and "special" key controls. | |
37 | */ | |
38 | ||
39 | /* | |
40 | * We have 0 - 8 as valid brightness levels. The specs say that level 0 should | |
41 | * be reserved by the BIOS (which really doesn't make much sense), we tell | |
42 | * userspace that the value is 0 - 7 and then just tell the hardware 1 - 8 | |
43 | */ | |
44 | #define MAX_BRIGHT 0x07 | |
45 | ||
46 | ||
47 | #define SABI_IFACE_MAIN 0x00 | |
48 | #define SABI_IFACE_SUB 0x02 | |
49 | #define SABI_IFACE_COMPLETE 0x04 | |
50 | #define SABI_IFACE_DATA 0x05 | |
51 | ||
84d482f2 CC |
52 | #define WL_STATUS_WLAN 0x0 |
53 | #define WL_STATUS_BT 0x2 | |
54 | ||
7e960711 CC |
55 | /* Structure get/set data using sabi */ |
56 | struct sabi_data { | |
57 | union { | |
58 | struct { | |
59 | u32 d0; | |
60 | u32 d1; | |
61 | u16 d2; | |
62 | u8 d3; | |
63 | }; | |
64 | u8 data[11]; | |
65 | }; | |
2d70b73a GKH |
66 | }; |
67 | ||
68 | struct sabi_header_offsets { | |
69 | u8 port; | |
70 | u8 re_mem; | |
71 | u8 iface_func; | |
72 | u8 en_mem; | |
73 | u8 data_offset; | |
74 | u8 data_segment; | |
75 | }; | |
76 | ||
77 | struct sabi_commands { | |
78 | /* | |
79 | * Brightness is 0 - 8, as described above. | |
80 | * Value 0 is for the BIOS to use | |
81 | */ | |
7e960711 CC |
82 | u16 get_brightness; |
83 | u16 set_brightness; | |
2d70b73a GKH |
84 | |
85 | /* | |
86 | * first byte: | |
87 | * 0x00 - wireless is off | |
88 | * 0x01 - wireless is on | |
89 | * second byte: | |
90 | * 0x02 - 3G is off | |
91 | * 0x03 - 3G is on | |
92 | * TODO, verify 3G is correct, that doesn't seem right... | |
93 | */ | |
7e960711 CC |
94 | u16 get_wireless_button; |
95 | u16 set_wireless_button; | |
2d70b73a GKH |
96 | |
97 | /* 0 is off, 1 is on */ | |
7e960711 CC |
98 | u16 get_backlight; |
99 | u16 set_backlight; | |
2d70b73a GKH |
100 | |
101 | /* | |
102 | * 0x80 or 0x00 - no action | |
103 | * 0x81 - recovery key pressed | |
104 | */ | |
7e960711 CC |
105 | u16 get_recovery_mode; |
106 | u16 set_recovery_mode; | |
2d70b73a GKH |
107 | |
108 | /* | |
109 | * on seclinux: 0 is low, 1 is high, | |
110 | * on swsmi: 0 is normal, 1 is silent, 2 is turbo | |
111 | */ | |
7e960711 CC |
112 | u16 get_performance_level; |
113 | u16 set_performance_level; | |
2d70b73a | 114 | |
cb5b5c91 CC |
115 | /* 0x80 is off, 0x81 is on */ |
116 | u16 get_battery_life_extender; | |
117 | u16 set_battery_life_extender; | |
118 | ||
3a75d378 CC |
119 | /* 0x80 is off, 0x81 is on */ |
120 | u16 get_usb_charge; | |
121 | u16 set_usb_charge; | |
122 | ||
84d482f2 CC |
123 | /* the first byte is for bluetooth and the third one is for wlan */ |
124 | u16 get_wireless_status; | |
125 | u16 set_wireless_status; | |
126 | ||
b0dcaf4f JK |
127 | /* 0x80 is off, 0x81 is on */ |
128 | u16 get_lid_handling; | |
129 | u16 set_lid_handling; | |
130 | ||
f674ebf1 CC |
131 | /* 0x81 to read, (0x82 | level << 8) to set, 0xaabb to enable */ |
132 | u16 kbd_backlight; | |
133 | ||
2d70b73a GKH |
134 | /* |
135 | * Tell the BIOS that Linux is running on this machine. | |
136 | * 81 is on, 80 is off | |
137 | */ | |
7e960711 | 138 | u16 set_linux; |
2d70b73a GKH |
139 | }; |
140 | ||
141 | struct sabi_performance_level { | |
142 | const char *name; | |
7e960711 | 143 | u16 value; |
2d70b73a GKH |
144 | }; |
145 | ||
146 | struct sabi_config { | |
84d482f2 | 147 | int sabi_version; |
2d70b73a GKH |
148 | const char *test_string; |
149 | u16 main_function; | |
150 | const struct sabi_header_offsets header_offsets; | |
151 | const struct sabi_commands commands; | |
152 | const struct sabi_performance_level performance_levels[4]; | |
153 | u8 min_brightness; | |
154 | u8 max_brightness; | |
155 | }; | |
156 | ||
157 | static const struct sabi_config sabi_configs[] = { | |
158 | { | |
84d482f2 CC |
159 | /* I don't know if it is really 2, but it it is |
160 | * less than 3 anyway */ | |
161 | .sabi_version = 2, | |
162 | ||
2d70b73a GKH |
163 | .test_string = "SECLINUX", |
164 | ||
165 | .main_function = 0x4c49, | |
166 | ||
167 | .header_offsets = { | |
168 | .port = 0x00, | |
169 | .re_mem = 0x02, | |
170 | .iface_func = 0x03, | |
171 | .en_mem = 0x04, | |
172 | .data_offset = 0x05, | |
173 | .data_segment = 0x07, | |
174 | }, | |
175 | ||
176 | .commands = { | |
177 | .get_brightness = 0x00, | |
178 | .set_brightness = 0x01, | |
179 | ||
180 | .get_wireless_button = 0x02, | |
181 | .set_wireless_button = 0x03, | |
182 | ||
183 | .get_backlight = 0x04, | |
184 | .set_backlight = 0x05, | |
185 | ||
186 | .get_recovery_mode = 0x06, | |
187 | .set_recovery_mode = 0x07, | |
188 | ||
189 | .get_performance_level = 0x08, | |
190 | .set_performance_level = 0x09, | |
191 | ||
cb5b5c91 CC |
192 | .get_battery_life_extender = 0xFFFF, |
193 | .set_battery_life_extender = 0xFFFF, | |
194 | ||
3a75d378 CC |
195 | .get_usb_charge = 0xFFFF, |
196 | .set_usb_charge = 0xFFFF, | |
197 | ||
84d482f2 CC |
198 | .get_wireless_status = 0xFFFF, |
199 | .set_wireless_status = 0xFFFF, | |
200 | ||
b0dcaf4f JK |
201 | .get_lid_handling = 0xFFFF, |
202 | .set_lid_handling = 0xFFFF, | |
203 | ||
f674ebf1 CC |
204 | .kbd_backlight = 0xFFFF, |
205 | ||
2d70b73a GKH |
206 | .set_linux = 0x0a, |
207 | }, | |
208 | ||
209 | .performance_levels = { | |
210 | { | |
211 | .name = "silent", | |
212 | .value = 0, | |
213 | }, | |
214 | { | |
215 | .name = "normal", | |
216 | .value = 1, | |
217 | }, | |
218 | { }, | |
219 | }, | |
220 | .min_brightness = 1, | |
221 | .max_brightness = 8, | |
222 | }, | |
223 | { | |
84d482f2 CC |
224 | .sabi_version = 3, |
225 | ||
2d70b73a GKH |
226 | .test_string = "SwSmi@", |
227 | ||
228 | .main_function = 0x5843, | |
229 | ||
230 | .header_offsets = { | |
231 | .port = 0x00, | |
232 | .re_mem = 0x04, | |
233 | .iface_func = 0x02, | |
234 | .en_mem = 0x03, | |
235 | .data_offset = 0x05, | |
236 | .data_segment = 0x07, | |
237 | }, | |
238 | ||
239 | .commands = { | |
240 | .get_brightness = 0x10, | |
241 | .set_brightness = 0x11, | |
242 | ||
243 | .get_wireless_button = 0x12, | |
244 | .set_wireless_button = 0x13, | |
245 | ||
246 | .get_backlight = 0x2d, | |
247 | .set_backlight = 0x2e, | |
248 | ||
249 | .get_recovery_mode = 0xff, | |
250 | .set_recovery_mode = 0xff, | |
251 | ||
252 | .get_performance_level = 0x31, | |
253 | .set_performance_level = 0x32, | |
254 | ||
cb5b5c91 CC |
255 | .get_battery_life_extender = 0x65, |
256 | .set_battery_life_extender = 0x66, | |
257 | ||
3a75d378 CC |
258 | .get_usb_charge = 0x67, |
259 | .set_usb_charge = 0x68, | |
260 | ||
84d482f2 CC |
261 | .get_wireless_status = 0x69, |
262 | .set_wireless_status = 0x6a, | |
263 | ||
b0dcaf4f JK |
264 | .get_lid_handling = 0x6d, |
265 | .set_lid_handling = 0x6e, | |
266 | ||
f674ebf1 CC |
267 | .kbd_backlight = 0x78, |
268 | ||
2d70b73a GKH |
269 | .set_linux = 0xff, |
270 | }, | |
271 | ||
272 | .performance_levels = { | |
273 | { | |
274 | .name = "normal", | |
275 | .value = 0, | |
276 | }, | |
277 | { | |
278 | .name = "silent", | |
279 | .value = 1, | |
280 | }, | |
281 | { | |
282 | .name = "overclock", | |
283 | .value = 2, | |
284 | }, | |
285 | { }, | |
286 | }, | |
287 | .min_brightness = 0, | |
288 | .max_brightness = 8, | |
289 | }, | |
290 | { }, | |
291 | }; | |
292 | ||
5b80fc40 CC |
293 | /* |
294 | * samsung-laptop/ - debugfs root directory | |
295 | * f0000_segment - dump f0000 segment | |
296 | * command - current command | |
297 | * data - current data | |
298 | * d0, d1, d2, d3 - data fields | |
299 | * call - call SABI using command and data | |
300 | * | |
301 | * This allow to call arbitrary sabi commands wihout | |
302 | * modifying the driver at all. | |
303 | * For example, setting the keyboard backlight brightness to 5 | |
304 | * | |
305 | * echo 0x78 > command | |
306 | * echo 0x0582 > d0 | |
307 | * echo 0 > d1 | |
308 | * echo 0 > d2 | |
309 | * echo 0 > d3 | |
310 | * cat call | |
311 | */ | |
312 | ||
313 | struct samsung_laptop_debug { | |
314 | struct dentry *root; | |
315 | struct sabi_data data; | |
316 | u16 command; | |
317 | ||
318 | struct debugfs_blob_wrapper f0000_wrapper; | |
319 | struct debugfs_blob_wrapper data_wrapper; | |
6f6ae06e | 320 | struct debugfs_blob_wrapper sdiag_wrapper; |
5b80fc40 CC |
321 | }; |
322 | ||
84d482f2 CC |
323 | struct samsung_laptop; |
324 | ||
325 | struct samsung_rfkill { | |
326 | struct samsung_laptop *samsung; | |
327 | struct rfkill *rfkill; | |
328 | enum rfkill_type type; | |
329 | }; | |
330 | ||
a6df4894 CC |
331 | struct samsung_laptop { |
332 | const struct sabi_config *config; | |
2d70b73a | 333 | |
a6df4894 CC |
334 | void __iomem *sabi; |
335 | void __iomem *sabi_iface; | |
336 | void __iomem *f0000_segment; | |
337 | ||
338 | struct mutex sabi_mutex; | |
339 | ||
5dea7a20 | 340 | struct platform_device *platform_device; |
a6df4894 | 341 | struct backlight_device *backlight_device; |
84d482f2 CC |
342 | |
343 | struct samsung_rfkill wlan; | |
344 | struct samsung_rfkill bluetooth; | |
a6df4894 | 345 | |
f674ebf1 CC |
346 | struct led_classdev kbd_led; |
347 | int kbd_led_wk; | |
348 | struct workqueue_struct *led_workqueue; | |
349 | struct work_struct kbd_led_work; | |
350 | ||
5b80fc40 | 351 | struct samsung_laptop_debug debug; |
a979e2e2 | 352 | struct samsung_quirks *quirks; |
5b80fc40 | 353 | |
0ca849ea ST |
354 | struct notifier_block pm_nb; |
355 | ||
f34cd9ca | 356 | bool handle_backlight; |
a6df4894 | 357 | bool has_stepping_quirk; |
6f6ae06e CC |
358 | |
359 | char sdiag[64]; | |
a6df4894 CC |
360 | }; |
361 | ||
a979e2e2 CC |
362 | struct samsung_quirks { |
363 | bool broken_acpi_video; | |
0ca849ea ST |
364 | bool four_kbd_backlight_levels; |
365 | bool enable_kbd_backlight; | |
4690555e | 366 | bool use_native_backlight; |
b0dcaf4f | 367 | bool lid_handling; |
a979e2e2 CC |
368 | }; |
369 | ||
370 | static struct samsung_quirks samsung_unknown = {}; | |
5dea7a20 | 371 | |
a979e2e2 CC |
372 | static struct samsung_quirks samsung_broken_acpi_video = { |
373 | .broken_acpi_video = true, | |
374 | }; | |
2d70b73a | 375 | |
4690555e HG |
376 | static struct samsung_quirks samsung_use_native_backlight = { |
377 | .use_native_backlight = true, | |
378 | }; | |
379 | ||
0ca849ea ST |
380 | static struct samsung_quirks samsung_np740u3e = { |
381 | .four_kbd_backlight_levels = true, | |
382 | .enable_kbd_backlight = true, | |
383 | }; | |
384 | ||
b0dcaf4f JK |
385 | static struct samsung_quirks samsung_lid_handling = { |
386 | .lid_handling = true, | |
387 | }; | |
388 | ||
90ab5ee9 | 389 | static bool force; |
2d70b73a GKH |
390 | module_param(force, bool, 0); |
391 | MODULE_PARM_DESC(force, | |
392 | "Disable the DMI check and forces the driver to be loaded"); | |
393 | ||
90ab5ee9 | 394 | static bool debug; |
2d70b73a GKH |
395 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
396 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
397 | ||
7e960711 CC |
398 | static int sabi_command(struct samsung_laptop *samsung, u16 command, |
399 | struct sabi_data *in, | |
400 | struct sabi_data *out) | |
2d70b73a | 401 | { |
a6df4894 | 402 | const struct sabi_config *config = samsung->config; |
7e960711 | 403 | int ret = 0; |
a6df4894 | 404 | u16 port = readw(samsung->sabi + config->header_offsets.port); |
2d70b73a GKH |
405 | u8 complete, iface_data; |
406 | ||
a6df4894 | 407 | mutex_lock(&samsung->sabi_mutex); |
2d70b73a | 408 | |
7e960711 CC |
409 | if (debug) { |
410 | if (in) | |
2e777187 CC |
411 | pr_info("SABI command:0x%04x " |
412 | "data:{0x%08x, 0x%08x, 0x%04x, 0x%02x}", | |
7e960711 CC |
413 | command, in->d0, in->d1, in->d2, in->d3); |
414 | else | |
2e777187 | 415 | pr_info("SABI command:0x%04x", command); |
7e960711 CC |
416 | } |
417 | ||
2d70b73a | 418 | /* enable memory to be able to write to it */ |
a6df4894 | 419 | outb(readb(samsung->sabi + config->header_offsets.en_mem), port); |
2d70b73a GKH |
420 | |
421 | /* write out the command */ | |
a6df4894 CC |
422 | writew(config->main_function, samsung->sabi_iface + SABI_IFACE_MAIN); |
423 | writew(command, samsung->sabi_iface + SABI_IFACE_SUB); | |
424 | writeb(0, samsung->sabi_iface + SABI_IFACE_COMPLETE); | |
7e960711 CC |
425 | if (in) { |
426 | writel(in->d0, samsung->sabi_iface + SABI_IFACE_DATA); | |
427 | writel(in->d1, samsung->sabi_iface + SABI_IFACE_DATA + 4); | |
428 | writew(in->d2, samsung->sabi_iface + SABI_IFACE_DATA + 8); | |
429 | writeb(in->d3, samsung->sabi_iface + SABI_IFACE_DATA + 10); | |
430 | } | |
a6df4894 | 431 | outb(readb(samsung->sabi + config->header_offsets.iface_func), port); |
2d70b73a GKH |
432 | |
433 | /* write protect memory to make it safe */ | |
a6df4894 | 434 | outb(readb(samsung->sabi + config->header_offsets.re_mem), port); |
2d70b73a GKH |
435 | |
436 | /* see if the command actually succeeded */ | |
a6df4894 CC |
437 | complete = readb(samsung->sabi_iface + SABI_IFACE_COMPLETE); |
438 | iface_data = readb(samsung->sabi_iface + SABI_IFACE_DATA); | |
2e777187 CC |
439 | |
440 | /* iface_data = 0xFF happens when a command is not known | |
441 | * so we only add a warning in debug mode since we will | |
442 | * probably issue some unknown command at startup to find | |
443 | * out which features are supported */ | |
444 | if (complete != 0xaa || (iface_data == 0xff && debug)) | |
7e960711 CC |
445 | pr_warn("SABI command 0x%04x failed with" |
446 | " completion flag 0x%02x and interface data 0x%02x", | |
447 | command, complete, iface_data); | |
2e777187 CC |
448 | |
449 | if (complete != 0xaa || iface_data == 0xff) { | |
7e960711 | 450 | ret = -EINVAL; |
2d70b73a GKH |
451 | goto exit; |
452 | } | |
7e960711 CC |
453 | |
454 | if (out) { | |
455 | out->d0 = readl(samsung->sabi_iface + SABI_IFACE_DATA); | |
456 | out->d1 = readl(samsung->sabi_iface + SABI_IFACE_DATA + 4); | |
457 | out->d2 = readw(samsung->sabi_iface + SABI_IFACE_DATA + 2); | |
458 | out->d3 = readb(samsung->sabi_iface + SABI_IFACE_DATA + 1); | |
459 | } | |
460 | ||
461 | if (debug && out) { | |
2e777187 | 462 | pr_info("SABI return data:{0x%08x, 0x%08x, 0x%04x, 0x%02x}", |
7e960711 CC |
463 | out->d0, out->d1, out->d2, out->d3); |
464 | } | |
2d70b73a GKH |
465 | |
466 | exit: | |
a6df4894 | 467 | mutex_unlock(&samsung->sabi_mutex); |
7e960711 | 468 | return ret; |
2d70b73a GKH |
469 | } |
470 | ||
7e960711 CC |
471 | /* simple wrappers usable with most commands */ |
472 | static int sabi_set_commandb(struct samsung_laptop *samsung, | |
473 | u16 command, u8 data) | |
2d70b73a | 474 | { |
85229440 | 475 | struct sabi_data in = { { { .d0 = 0, .d1 = 0, .d2 = 0, .d3 = 0 } } }; |
2d70b73a | 476 | |
7e960711 CC |
477 | in.data[0] = data; |
478 | return sabi_command(samsung, command, &in, NULL); | |
2d70b73a GKH |
479 | } |
480 | ||
5dea7a20 | 481 | static int read_brightness(struct samsung_laptop *samsung) |
2d70b73a | 482 | { |
a6df4894 CC |
483 | const struct sabi_config *config = samsung->config; |
484 | const struct sabi_commands *commands = &samsung->config->commands; | |
7e960711 | 485 | struct sabi_data sretval; |
2d70b73a GKH |
486 | int user_brightness = 0; |
487 | int retval; | |
488 | ||
7e960711 CC |
489 | retval = sabi_command(samsung, commands->get_brightness, |
490 | NULL, &sretval); | |
491 | if (retval) | |
492 | return retval; | |
493 | ||
494 | user_brightness = sretval.data[0]; | |
495 | if (user_brightness > config->min_brightness) | |
496 | user_brightness -= config->min_brightness; | |
497 | else | |
498 | user_brightness = 0; | |
499 | ||
2d70b73a GKH |
500 | return user_brightness; |
501 | } | |
502 | ||
5dea7a20 | 503 | static void set_brightness(struct samsung_laptop *samsung, u8 user_brightness) |
2d70b73a | 504 | { |
a6df4894 CC |
505 | const struct sabi_config *config = samsung->config; |
506 | const struct sabi_commands *commands = &samsung->config->commands; | |
507 | u8 user_level = user_brightness + config->min_brightness; | |
2d70b73a | 508 | |
a6df4894 | 509 | if (samsung->has_stepping_quirk && user_level != 0) { |
ac080523 JS |
510 | /* |
511 | * short circuit if the specified level is what's already set | |
512 | * to prevent the screen from flickering needlessly | |
513 | */ | |
5dea7a20 | 514 | if (user_brightness == read_brightness(samsung)) |
ac080523 JS |
515 | return; |
516 | ||
7e960711 | 517 | sabi_set_commandb(samsung, commands->set_brightness, 0); |
ac080523 JS |
518 | } |
519 | ||
7e960711 | 520 | sabi_set_commandb(samsung, commands->set_brightness, user_level); |
2d70b73a GKH |
521 | } |
522 | ||
523 | static int get_brightness(struct backlight_device *bd) | |
524 | { | |
5dea7a20 CC |
525 | struct samsung_laptop *samsung = bl_get_data(bd); |
526 | ||
527 | return read_brightness(samsung); | |
2d70b73a GKH |
528 | } |
529 | ||
5dea7a20 | 530 | static void check_for_stepping_quirk(struct samsung_laptop *samsung) |
ac080523 | 531 | { |
5dea7a20 CC |
532 | int initial_level; |
533 | int check_level; | |
534 | int orig_level = read_brightness(samsung); | |
ac080523 JS |
535 | |
536 | /* | |
537 | * Some laptops exhibit the strange behaviour of stepping toward | |
538 | * (rather than setting) the brightness except when changing to/from | |
539 | * brightness level 0. This behaviour is checked for here and worked | |
540 | * around in set_brightness. | |
541 | */ | |
542 | ||
ba05b237 | 543 | if (orig_level == 0) |
5dea7a20 | 544 | set_brightness(samsung, 1); |
ba05b237 | 545 | |
5dea7a20 | 546 | initial_level = read_brightness(samsung); |
ba05b237 | 547 | |
ac080523 JS |
548 | if (initial_level <= 2) |
549 | check_level = initial_level + 2; | |
550 | else | |
551 | check_level = initial_level - 2; | |
552 | ||
a6df4894 | 553 | samsung->has_stepping_quirk = false; |
5dea7a20 | 554 | set_brightness(samsung, check_level); |
ac080523 | 555 | |
5dea7a20 | 556 | if (read_brightness(samsung) != check_level) { |
a6df4894 | 557 | samsung->has_stepping_quirk = true; |
ac080523 JS |
558 | pr_info("enabled workaround for brightness stepping quirk\n"); |
559 | } | |
560 | ||
5dea7a20 | 561 | set_brightness(samsung, orig_level); |
ac080523 JS |
562 | } |
563 | ||
2d70b73a GKH |
564 | static int update_status(struct backlight_device *bd) |
565 | { | |
5dea7a20 | 566 | struct samsung_laptop *samsung = bl_get_data(bd); |
a6df4894 CC |
567 | const struct sabi_commands *commands = &samsung->config->commands; |
568 | ||
5dea7a20 | 569 | set_brightness(samsung, bd->props.brightness); |
2d70b73a GKH |
570 | |
571 | if (bd->props.power == FB_BLANK_UNBLANK) | |
7e960711 | 572 | sabi_set_commandb(samsung, commands->set_backlight, 1); |
2d70b73a | 573 | else |
7e960711 | 574 | sabi_set_commandb(samsung, commands->set_backlight, 0); |
5dea7a20 | 575 | |
2d70b73a GKH |
576 | return 0; |
577 | } | |
578 | ||
579 | static const struct backlight_ops backlight_ops = { | |
580 | .get_brightness = get_brightness, | |
581 | .update_status = update_status, | |
582 | }; | |
583 | ||
84d482f2 | 584 | static int seclinux_rfkill_set(void *data, bool blocked) |
2d70b73a | 585 | { |
20db88e3 CC |
586 | struct samsung_rfkill *srfkill = data; |
587 | struct samsung_laptop *samsung = srfkill->samsung; | |
a6df4894 CC |
588 | const struct sabi_commands *commands = &samsung->config->commands; |
589 | ||
84d482f2 CC |
590 | return sabi_set_commandb(samsung, commands->set_wireless_button, |
591 | !blocked); | |
592 | } | |
593 | ||
8314a1c8 | 594 | static const struct rfkill_ops seclinux_rfkill_ops = { |
84d482f2 CC |
595 | .set_block = seclinux_rfkill_set, |
596 | }; | |
597 | ||
598 | static int swsmi_wireless_status(struct samsung_laptop *samsung, | |
599 | struct sabi_data *data) | |
600 | { | |
601 | const struct sabi_commands *commands = &samsung->config->commands; | |
602 | ||
603 | return sabi_command(samsung, commands->get_wireless_status, | |
604 | NULL, data); | |
605 | } | |
606 | ||
607 | static int swsmi_rfkill_set(void *priv, bool blocked) | |
608 | { | |
609 | struct samsung_rfkill *srfkill = priv; | |
610 | struct samsung_laptop *samsung = srfkill->samsung; | |
611 | const struct sabi_commands *commands = &samsung->config->commands; | |
612 | struct sabi_data data; | |
613 | int ret, i; | |
614 | ||
615 | ret = swsmi_wireless_status(samsung, &data); | |
616 | if (ret) | |
617 | return ret; | |
618 | ||
619 | /* Don't set the state for non-present devices */ | |
620 | for (i = 0; i < 4; i++) | |
621 | if (data.data[i] == 0x02) | |
622 | data.data[1] = 0; | |
623 | ||
624 | if (srfkill->type == RFKILL_TYPE_WLAN) | |
625 | data.data[WL_STATUS_WLAN] = !blocked; | |
626 | else if (srfkill->type == RFKILL_TYPE_BLUETOOTH) | |
627 | data.data[WL_STATUS_BT] = !blocked; | |
628 | ||
629 | return sabi_command(samsung, commands->set_wireless_status, | |
630 | &data, &data); | |
631 | } | |
632 | ||
633 | static void swsmi_rfkill_query(struct rfkill *rfkill, void *priv) | |
634 | { | |
635 | struct samsung_rfkill *srfkill = priv; | |
636 | struct samsung_laptop *samsung = srfkill->samsung; | |
637 | struct sabi_data data; | |
638 | int ret; | |
639 | ||
640 | ret = swsmi_wireless_status(samsung, &data); | |
641 | if (ret) | |
642 | return ; | |
643 | ||
644 | if (srfkill->type == RFKILL_TYPE_WLAN) | |
645 | ret = data.data[WL_STATUS_WLAN]; | |
646 | else if (srfkill->type == RFKILL_TYPE_BLUETOOTH) | |
647 | ret = data.data[WL_STATUS_BT]; | |
2d70b73a | 648 | else |
84d482f2 | 649 | return ; |
2d70b73a | 650 | |
84d482f2 | 651 | rfkill_set_sw_state(rfkill, !ret); |
2d70b73a GKH |
652 | } |
653 | ||
8314a1c8 | 654 | static const struct rfkill_ops swsmi_rfkill_ops = { |
84d482f2 CC |
655 | .set_block = swsmi_rfkill_set, |
656 | .query = swsmi_rfkill_query, | |
2d70b73a GKH |
657 | }; |
658 | ||
2d70b73a GKH |
659 | static ssize_t get_performance_level(struct device *dev, |
660 | struct device_attribute *attr, char *buf) | |
661 | { | |
5dea7a20 | 662 | struct samsung_laptop *samsung = dev_get_drvdata(dev); |
a6df4894 | 663 | const struct sabi_config *config = samsung->config; |
5dea7a20 | 664 | const struct sabi_commands *commands = &config->commands; |
7e960711 | 665 | struct sabi_data sretval; |
2d70b73a GKH |
666 | int retval; |
667 | int i; | |
668 | ||
669 | /* Read the state */ | |
7e960711 CC |
670 | retval = sabi_command(samsung, commands->get_performance_level, |
671 | NULL, &sretval); | |
2d70b73a GKH |
672 | if (retval) |
673 | return retval; | |
674 | ||
675 | /* The logic is backwards, yeah, lots of fun... */ | |
a6df4894 | 676 | for (i = 0; config->performance_levels[i].name; ++i) { |
7e960711 | 677 | if (sretval.data[0] == config->performance_levels[i].value) |
a6df4894 | 678 | return sprintf(buf, "%s\n", config->performance_levels[i].name); |
2d70b73a GKH |
679 | } |
680 | return sprintf(buf, "%s\n", "unknown"); | |
681 | } | |
682 | ||
683 | static ssize_t set_performance_level(struct device *dev, | |
684 | struct device_attribute *attr, const char *buf, | |
685 | size_t count) | |
686 | { | |
5dea7a20 | 687 | struct samsung_laptop *samsung = dev_get_drvdata(dev); |
a6df4894 | 688 | const struct sabi_config *config = samsung->config; |
5dea7a20 CC |
689 | const struct sabi_commands *commands = &config->commands; |
690 | int i; | |
a6df4894 | 691 | |
5dea7a20 CC |
692 | if (count < 1) |
693 | return count; | |
694 | ||
695 | for (i = 0; config->performance_levels[i].name; ++i) { | |
696 | const struct sabi_performance_level *level = | |
697 | &config->performance_levels[i]; | |
698 | if (!strncasecmp(level->name, buf, strlen(level->name))) { | |
7e960711 CC |
699 | sabi_set_commandb(samsung, |
700 | commands->set_performance_level, | |
701 | level->value); | |
5dea7a20 | 702 | break; |
2d70b73a | 703 | } |
2d70b73a | 704 | } |
5dea7a20 CC |
705 | |
706 | if (!config->performance_levels[i].name) | |
707 | return -EINVAL; | |
708 | ||
2d70b73a GKH |
709 | return count; |
710 | } | |
5dea7a20 | 711 | |
2d70b73a GKH |
712 | static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO, |
713 | get_performance_level, set_performance_level); | |
714 | ||
cb5b5c91 CC |
715 | static int read_battery_life_extender(struct samsung_laptop *samsung) |
716 | { | |
717 | const struct sabi_commands *commands = &samsung->config->commands; | |
718 | struct sabi_data data; | |
719 | int retval; | |
720 | ||
721 | if (commands->get_battery_life_extender == 0xFFFF) | |
722 | return -ENODEV; | |
723 | ||
724 | memset(&data, 0, sizeof(data)); | |
725 | data.data[0] = 0x80; | |
726 | retval = sabi_command(samsung, commands->get_battery_life_extender, | |
727 | &data, &data); | |
728 | ||
729 | if (retval) | |
730 | return retval; | |
731 | ||
732 | if (data.data[0] != 0 && data.data[0] != 1) | |
733 | return -ENODEV; | |
734 | ||
735 | return data.data[0]; | |
736 | } | |
737 | ||
738 | static int write_battery_life_extender(struct samsung_laptop *samsung, | |
739 | int enabled) | |
740 | { | |
741 | const struct sabi_commands *commands = &samsung->config->commands; | |
742 | struct sabi_data data; | |
743 | ||
744 | memset(&data, 0, sizeof(data)); | |
745 | data.data[0] = 0x80 | enabled; | |
746 | return sabi_command(samsung, commands->set_battery_life_extender, | |
747 | &data, NULL); | |
748 | } | |
749 | ||
750 | static ssize_t get_battery_life_extender(struct device *dev, | |
751 | struct device_attribute *attr, | |
752 | char *buf) | |
753 | { | |
754 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
755 | int ret; | |
756 | ||
757 | ret = read_battery_life_extender(samsung); | |
758 | if (ret < 0) | |
759 | return ret; | |
760 | ||
761 | return sprintf(buf, "%d\n", ret); | |
762 | } | |
763 | ||
764 | static ssize_t set_battery_life_extender(struct device *dev, | |
765 | struct device_attribute *attr, | |
766 | const char *buf, size_t count) | |
767 | { | |
768 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
769 | int ret, value; | |
770 | ||
802cf2e1 | 771 | if (!count || kstrtoint(buf, 0, &value) != 0) |
cb5b5c91 CC |
772 | return -EINVAL; |
773 | ||
774 | ret = write_battery_life_extender(samsung, !!value); | |
775 | if (ret < 0) | |
776 | return ret; | |
777 | ||
778 | return count; | |
779 | } | |
780 | ||
781 | static DEVICE_ATTR(battery_life_extender, S_IWUSR | S_IRUGO, | |
782 | get_battery_life_extender, set_battery_life_extender); | |
783 | ||
3a75d378 CC |
784 | static int read_usb_charge(struct samsung_laptop *samsung) |
785 | { | |
786 | const struct sabi_commands *commands = &samsung->config->commands; | |
787 | struct sabi_data data; | |
788 | int retval; | |
789 | ||
790 | if (commands->get_usb_charge == 0xFFFF) | |
791 | return -ENODEV; | |
792 | ||
793 | memset(&data, 0, sizeof(data)); | |
794 | data.data[0] = 0x80; | |
795 | retval = sabi_command(samsung, commands->get_usb_charge, | |
796 | &data, &data); | |
797 | ||
798 | if (retval) | |
799 | return retval; | |
800 | ||
801 | if (data.data[0] != 0 && data.data[0] != 1) | |
802 | return -ENODEV; | |
803 | ||
804 | return data.data[0]; | |
805 | } | |
806 | ||
807 | static int write_usb_charge(struct samsung_laptop *samsung, | |
808 | int enabled) | |
809 | { | |
810 | const struct sabi_commands *commands = &samsung->config->commands; | |
811 | struct sabi_data data; | |
812 | ||
813 | memset(&data, 0, sizeof(data)); | |
814 | data.data[0] = 0x80 | enabled; | |
815 | return sabi_command(samsung, commands->set_usb_charge, | |
816 | &data, NULL); | |
817 | } | |
818 | ||
819 | static ssize_t get_usb_charge(struct device *dev, | |
820 | struct device_attribute *attr, | |
821 | char *buf) | |
822 | { | |
823 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
824 | int ret; | |
825 | ||
826 | ret = read_usb_charge(samsung); | |
827 | if (ret < 0) | |
828 | return ret; | |
829 | ||
830 | return sprintf(buf, "%d\n", ret); | |
831 | } | |
832 | ||
833 | static ssize_t set_usb_charge(struct device *dev, | |
834 | struct device_attribute *attr, | |
835 | const char *buf, size_t count) | |
836 | { | |
837 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
838 | int ret, value; | |
839 | ||
802cf2e1 | 840 | if (!count || kstrtoint(buf, 0, &value) != 0) |
3a75d378 CC |
841 | return -EINVAL; |
842 | ||
843 | ret = write_usb_charge(samsung, !!value); | |
844 | if (ret < 0) | |
845 | return ret; | |
846 | ||
847 | return count; | |
848 | } | |
849 | ||
850 | static DEVICE_ATTR(usb_charge, S_IWUSR | S_IRUGO, | |
851 | get_usb_charge, set_usb_charge); | |
852 | ||
b0dcaf4f JK |
853 | static int read_lid_handling(struct samsung_laptop *samsung) |
854 | { | |
855 | const struct sabi_commands *commands = &samsung->config->commands; | |
856 | struct sabi_data data; | |
857 | int retval; | |
858 | ||
859 | if (commands->get_lid_handling == 0xFFFF) | |
860 | return -ENODEV; | |
861 | ||
862 | memset(&data, 0, sizeof(data)); | |
863 | retval = sabi_command(samsung, commands->get_lid_handling, | |
864 | &data, &data); | |
865 | ||
866 | if (retval) | |
867 | return retval; | |
868 | ||
869 | return data.data[0] & 0x1; | |
870 | } | |
871 | ||
872 | static int write_lid_handling(struct samsung_laptop *samsung, | |
873 | int enabled) | |
874 | { | |
875 | const struct sabi_commands *commands = &samsung->config->commands; | |
876 | struct sabi_data data; | |
877 | ||
878 | memset(&data, 0, sizeof(data)); | |
879 | data.data[0] = 0x80 | enabled; | |
880 | return sabi_command(samsung, commands->set_lid_handling, | |
881 | &data, NULL); | |
882 | } | |
883 | ||
884 | static ssize_t get_lid_handling(struct device *dev, | |
885 | struct device_attribute *attr, | |
886 | char *buf) | |
887 | { | |
888 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
889 | int ret; | |
890 | ||
891 | ret = read_lid_handling(samsung); | |
892 | if (ret < 0) | |
893 | return ret; | |
894 | ||
895 | return sprintf(buf, "%d\n", ret); | |
896 | } | |
897 | ||
898 | static ssize_t set_lid_handling(struct device *dev, | |
899 | struct device_attribute *attr, | |
900 | const char *buf, size_t count) | |
901 | { | |
902 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
903 | int ret, value; | |
904 | ||
905 | if (!count || kstrtoint(buf, 0, &value) != 0) | |
906 | return -EINVAL; | |
907 | ||
908 | ret = write_lid_handling(samsung, !!value); | |
909 | if (ret < 0) | |
910 | return ret; | |
911 | ||
912 | return count; | |
913 | } | |
914 | ||
915 | static DEVICE_ATTR(lid_handling, S_IWUSR | S_IRUGO, | |
916 | get_lid_handling, set_lid_handling); | |
917 | ||
a66c1662 CC |
918 | static struct attribute *platform_attributes[] = { |
919 | &dev_attr_performance_level.attr, | |
cb5b5c91 | 920 | &dev_attr_battery_life_extender.attr, |
3a75d378 | 921 | &dev_attr_usb_charge.attr, |
b0dcaf4f | 922 | &dev_attr_lid_handling.attr, |
a66c1662 CC |
923 | NULL |
924 | }; | |
2d70b73a | 925 | |
5dea7a20 CC |
926 | static int find_signature(void __iomem *memcheck, const char *testStr) |
927 | { | |
928 | int i = 0; | |
929 | int loca; | |
930 | ||
931 | for (loca = 0; loca < 0xffff; loca++) { | |
932 | char temp = readb(memcheck + loca); | |
933 | ||
934 | if (temp == testStr[i]) { | |
935 | if (i == strlen(testStr)-1) | |
936 | break; | |
937 | ++i; | |
938 | } else { | |
939 | i = 0; | |
940 | } | |
941 | } | |
942 | return loca; | |
943 | } | |
944 | ||
945 | static void samsung_rfkill_exit(struct samsung_laptop *samsung) | |
946 | { | |
84d482f2 CC |
947 | if (samsung->wlan.rfkill) { |
948 | rfkill_unregister(samsung->wlan.rfkill); | |
949 | rfkill_destroy(samsung->wlan.rfkill); | |
950 | samsung->wlan.rfkill = NULL; | |
951 | } | |
952 | if (samsung->bluetooth.rfkill) { | |
953 | rfkill_unregister(samsung->bluetooth.rfkill); | |
954 | rfkill_destroy(samsung->bluetooth.rfkill); | |
955 | samsung->bluetooth.rfkill = NULL; | |
5dea7a20 CC |
956 | } |
957 | } | |
958 | ||
84d482f2 CC |
959 | static int samsung_new_rfkill(struct samsung_laptop *samsung, |
960 | struct samsung_rfkill *arfkill, | |
961 | const char *name, enum rfkill_type type, | |
962 | const struct rfkill_ops *ops, | |
963 | int blocked) | |
5dea7a20 | 964 | { |
84d482f2 CC |
965 | struct rfkill **rfkill = &arfkill->rfkill; |
966 | int ret; | |
5dea7a20 | 967 | |
84d482f2 CC |
968 | arfkill->type = type; |
969 | arfkill->samsung = samsung; | |
970 | ||
971 | *rfkill = rfkill_alloc(name, &samsung->platform_device->dev, | |
972 | type, ops, arfkill); | |
973 | ||
974 | if (!*rfkill) | |
975 | return -EINVAL; | |
976 | ||
977 | if (blocked != -1) | |
978 | rfkill_init_sw_state(*rfkill, blocked); | |
979 | ||
980 | ret = rfkill_register(*rfkill); | |
981 | if (ret) { | |
982 | rfkill_destroy(*rfkill); | |
983 | *rfkill = NULL; | |
984 | return ret; | |
5dea7a20 | 985 | } |
84d482f2 CC |
986 | return 0; |
987 | } | |
5dea7a20 | 988 | |
84d482f2 CC |
989 | static int __init samsung_rfkill_init_seclinux(struct samsung_laptop *samsung) |
990 | { | |
991 | return samsung_new_rfkill(samsung, &samsung->wlan, "samsung-wlan", | |
992 | RFKILL_TYPE_WLAN, &seclinux_rfkill_ops, -1); | |
993 | } | |
994 | ||
995 | static int __init samsung_rfkill_init_swsmi(struct samsung_laptop *samsung) | |
996 | { | |
997 | struct sabi_data data; | |
998 | int ret; | |
999 | ||
1000 | ret = swsmi_wireless_status(samsung, &data); | |
20db88e3 CC |
1001 | if (ret) { |
1002 | /* Some swsmi laptops use the old seclinux way to control | |
1003 | * wireless devices */ | |
1004 | if (ret == -EINVAL) | |
1005 | ret = samsung_rfkill_init_seclinux(samsung); | |
84d482f2 | 1006 | return ret; |
20db88e3 | 1007 | } |
84d482f2 CC |
1008 | |
1009 | /* 0x02 seems to mean that the device is no present/available */ | |
1010 | ||
1011 | if (data.data[WL_STATUS_WLAN] != 0x02) | |
1012 | ret = samsung_new_rfkill(samsung, &samsung->wlan, | |
1013 | "samsung-wlan", | |
1014 | RFKILL_TYPE_WLAN, | |
1015 | &swsmi_rfkill_ops, | |
1016 | !data.data[WL_STATUS_WLAN]); | |
1017 | if (ret) | |
1018 | goto exit; | |
1019 | ||
1020 | if (data.data[WL_STATUS_BT] != 0x02) | |
1021 | ret = samsung_new_rfkill(samsung, &samsung->bluetooth, | |
1022 | "samsung-bluetooth", | |
1023 | RFKILL_TYPE_BLUETOOTH, | |
1024 | &swsmi_rfkill_ops, | |
1025 | !data.data[WL_STATUS_BT]); | |
1026 | if (ret) | |
1027 | goto exit; | |
1028 | ||
1029 | exit: | |
1030 | if (ret) | |
1031 | samsung_rfkill_exit(samsung); | |
1032 | ||
1033 | return ret; | |
1034 | } | |
1035 | ||
1036 | static int __init samsung_rfkill_init(struct samsung_laptop *samsung) | |
1037 | { | |
1038 | if (samsung->config->sabi_version == 2) | |
1039 | return samsung_rfkill_init_seclinux(samsung); | |
1040 | if (samsung->config->sabi_version == 3) | |
1041 | return samsung_rfkill_init_swsmi(samsung); | |
5dea7a20 CC |
1042 | return 0; |
1043 | } | |
1044 | ||
b0dcaf4f JK |
1045 | static void samsung_lid_handling_exit(struct samsung_laptop *samsung) |
1046 | { | |
1047 | if (samsung->quirks->lid_handling) | |
1048 | write_lid_handling(samsung, 0); | |
1049 | } | |
1050 | ||
1051 | static int __init samsung_lid_handling_init(struct samsung_laptop *samsung) | |
1052 | { | |
1053 | int retval = 0; | |
1054 | ||
1055 | if (samsung->quirks->lid_handling) | |
1056 | retval = write_lid_handling(samsung, 1); | |
1057 | ||
1058 | return retval; | |
1059 | } | |
1060 | ||
f674ebf1 CC |
1061 | static int kbd_backlight_enable(struct samsung_laptop *samsung) |
1062 | { | |
1063 | const struct sabi_commands *commands = &samsung->config->commands; | |
1064 | struct sabi_data data; | |
1065 | int retval; | |
1066 | ||
1067 | if (commands->kbd_backlight == 0xFFFF) | |
1068 | return -ENODEV; | |
1069 | ||
1070 | memset(&data, 0, sizeof(data)); | |
1071 | data.d0 = 0xaabb; | |
1072 | retval = sabi_command(samsung, commands->kbd_backlight, | |
1073 | &data, &data); | |
1074 | ||
1075 | if (retval) | |
1076 | return retval; | |
1077 | ||
1078 | if (data.d0 != 0xccdd) | |
1079 | return -ENODEV; | |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | static int kbd_backlight_read(struct samsung_laptop *samsung) | |
1084 | { | |
1085 | const struct sabi_commands *commands = &samsung->config->commands; | |
1086 | struct sabi_data data; | |
1087 | int retval; | |
1088 | ||
1089 | memset(&data, 0, sizeof(data)); | |
1090 | data.data[0] = 0x81; | |
1091 | retval = sabi_command(samsung, commands->kbd_backlight, | |
1092 | &data, &data); | |
1093 | ||
1094 | if (retval) | |
1095 | return retval; | |
1096 | ||
1097 | return data.data[0]; | |
1098 | } | |
1099 | ||
1100 | static int kbd_backlight_write(struct samsung_laptop *samsung, int brightness) | |
1101 | { | |
1102 | const struct sabi_commands *commands = &samsung->config->commands; | |
1103 | struct sabi_data data; | |
1104 | ||
1105 | memset(&data, 0, sizeof(data)); | |
1106 | data.d0 = 0x82 | ((brightness & 0xFF) << 8); | |
1107 | return sabi_command(samsung, commands->kbd_backlight, | |
1108 | &data, NULL); | |
1109 | } | |
1110 | ||
1111 | static void kbd_led_update(struct work_struct *work) | |
1112 | { | |
1113 | struct samsung_laptop *samsung; | |
1114 | ||
1115 | samsung = container_of(work, struct samsung_laptop, kbd_led_work); | |
1116 | kbd_backlight_write(samsung, samsung->kbd_led_wk); | |
1117 | } | |
1118 | ||
1119 | static void kbd_led_set(struct led_classdev *led_cdev, | |
1120 | enum led_brightness value) | |
1121 | { | |
1122 | struct samsung_laptop *samsung; | |
1123 | ||
1124 | samsung = container_of(led_cdev, struct samsung_laptop, kbd_led); | |
1125 | ||
1126 | if (value > samsung->kbd_led.max_brightness) | |
1127 | value = samsung->kbd_led.max_brightness; | |
1128 | else if (value < 0) | |
1129 | value = 0; | |
1130 | ||
1131 | samsung->kbd_led_wk = value; | |
1132 | queue_work(samsung->led_workqueue, &samsung->kbd_led_work); | |
1133 | } | |
1134 | ||
1135 | static enum led_brightness kbd_led_get(struct led_classdev *led_cdev) | |
1136 | { | |
1137 | struct samsung_laptop *samsung; | |
1138 | ||
1139 | samsung = container_of(led_cdev, struct samsung_laptop, kbd_led); | |
1140 | return kbd_backlight_read(samsung); | |
1141 | } | |
1142 | ||
1143 | static void samsung_leds_exit(struct samsung_laptop *samsung) | |
1144 | { | |
1145 | if (!IS_ERR_OR_NULL(samsung->kbd_led.dev)) | |
1146 | led_classdev_unregister(&samsung->kbd_led); | |
1147 | if (samsung->led_workqueue) | |
1148 | destroy_workqueue(samsung->led_workqueue); | |
1149 | } | |
1150 | ||
1151 | static int __init samsung_leds_init(struct samsung_laptop *samsung) | |
1152 | { | |
1153 | int ret = 0; | |
1154 | ||
1155 | samsung->led_workqueue = create_singlethread_workqueue("led_workqueue"); | |
1156 | if (!samsung->led_workqueue) | |
1157 | return -ENOMEM; | |
1158 | ||
1159 | if (kbd_backlight_enable(samsung) >= 0) { | |
1160 | INIT_WORK(&samsung->kbd_led_work, kbd_led_update); | |
1161 | ||
1162 | samsung->kbd_led.name = "samsung::kbd_backlight"; | |
1163 | samsung->kbd_led.brightness_set = kbd_led_set; | |
1164 | samsung->kbd_led.brightness_get = kbd_led_get; | |
1165 | samsung->kbd_led.max_brightness = 8; | |
0ca849ea ST |
1166 | if (samsung->quirks->four_kbd_backlight_levels) |
1167 | samsung->kbd_led.max_brightness = 4; | |
f674ebf1 CC |
1168 | |
1169 | ret = led_classdev_register(&samsung->platform_device->dev, | |
1170 | &samsung->kbd_led); | |
1171 | } | |
1172 | ||
1173 | if (ret) | |
1174 | samsung_leds_exit(samsung); | |
1175 | ||
1176 | return ret; | |
1177 | } | |
1178 | ||
5dea7a20 CC |
1179 | static void samsung_backlight_exit(struct samsung_laptop *samsung) |
1180 | { | |
1181 | if (samsung->backlight_device) { | |
1182 | backlight_device_unregister(samsung->backlight_device); | |
1183 | samsung->backlight_device = NULL; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | static int __init samsung_backlight_init(struct samsung_laptop *samsung) | |
1188 | { | |
1189 | struct backlight_device *bd; | |
1190 | struct backlight_properties props; | |
1191 | ||
f34cd9ca CC |
1192 | if (!samsung->handle_backlight) |
1193 | return 0; | |
1194 | ||
5dea7a20 CC |
1195 | memset(&props, 0, sizeof(struct backlight_properties)); |
1196 | props.type = BACKLIGHT_PLATFORM; | |
1197 | props.max_brightness = samsung->config->max_brightness - | |
1198 | samsung->config->min_brightness; | |
1199 | ||
1200 | bd = backlight_device_register("samsung", | |
1201 | &samsung->platform_device->dev, | |
1202 | samsung, &backlight_ops, | |
1203 | &props); | |
1204 | if (IS_ERR(bd)) | |
1205 | return PTR_ERR(bd); | |
1206 | ||
1207 | samsung->backlight_device = bd; | |
1208 | samsung->backlight_device->props.brightness = read_brightness(samsung); | |
1209 | samsung->backlight_device->props.power = FB_BLANK_UNBLANK; | |
1210 | backlight_update_status(samsung->backlight_device); | |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
bde9e509 | 1215 | static umode_t samsung_sysfs_is_visible(struct kobject *kobj, |
b0dcaf4f | 1216 | struct attribute *attr, int idx) |
a66c1662 CC |
1217 | { |
1218 | struct device *dev = container_of(kobj, struct device, kobj); | |
1219 | struct platform_device *pdev = to_platform_device(dev); | |
1220 | struct samsung_laptop *samsung = platform_get_drvdata(pdev); | |
1221 | bool ok = true; | |
1222 | ||
1223 | if (attr == &dev_attr_performance_level.attr) | |
1224 | ok = !!samsung->config->performance_levels[0].name; | |
cb5b5c91 CC |
1225 | if (attr == &dev_attr_battery_life_extender.attr) |
1226 | ok = !!(read_battery_life_extender(samsung) >= 0); | |
3a75d378 CC |
1227 | if (attr == &dev_attr_usb_charge.attr) |
1228 | ok = !!(read_usb_charge(samsung) >= 0); | |
b0dcaf4f JK |
1229 | if (attr == &dev_attr_lid_handling.attr) |
1230 | ok = !!(read_lid_handling(samsung) >= 0); | |
a66c1662 CC |
1231 | |
1232 | return ok ? attr->mode : 0; | |
1233 | } | |
1234 | ||
8546268e | 1235 | static const struct attribute_group platform_attribute_group = { |
a66c1662 CC |
1236 | .is_visible = samsung_sysfs_is_visible, |
1237 | .attrs = platform_attributes | |
1238 | }; | |
1239 | ||
5dea7a20 CC |
1240 | static void samsung_sysfs_exit(struct samsung_laptop *samsung) |
1241 | { | |
a66c1662 CC |
1242 | struct platform_device *device = samsung->platform_device; |
1243 | ||
1244 | sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); | |
5dea7a20 CC |
1245 | } |
1246 | ||
1247 | static int __init samsung_sysfs_init(struct samsung_laptop *samsung) | |
1248 | { | |
a66c1662 CC |
1249 | struct platform_device *device = samsung->platform_device; |
1250 | ||
1251 | return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); | |
1252 | ||
5dea7a20 CC |
1253 | } |
1254 | ||
5b80fc40 CC |
1255 | static int show_call(struct seq_file *m, void *data) |
1256 | { | |
1257 | struct samsung_laptop *samsung = m->private; | |
1258 | struct sabi_data *sdata = &samsung->debug.data; | |
1259 | int ret; | |
1260 | ||
1261 | seq_printf(m, "SABI 0x%04x {0x%08x, 0x%08x, 0x%04x, 0x%02x}\n", | |
1262 | samsung->debug.command, | |
1263 | sdata->d0, sdata->d1, sdata->d2, sdata->d3); | |
1264 | ||
1265 | ret = sabi_command(samsung, samsung->debug.command, sdata, sdata); | |
1266 | ||
1267 | if (ret) { | |
1268 | seq_printf(m, "SABI command 0x%04x failed\n", | |
1269 | samsung->debug.command); | |
1270 | return ret; | |
1271 | } | |
1272 | ||
1273 | seq_printf(m, "SABI {0x%08x, 0x%08x, 0x%04x, 0x%02x}\n", | |
1274 | sdata->d0, sdata->d1, sdata->d2, sdata->d3); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1278 | static int samsung_debugfs_open(struct inode *inode, struct file *file) | |
1279 | { | |
1280 | return single_open(file, show_call, inode->i_private); | |
1281 | } | |
1282 | ||
1283 | static const struct file_operations samsung_laptop_call_io_ops = { | |
1284 | .owner = THIS_MODULE, | |
1285 | .open = samsung_debugfs_open, | |
1286 | .read = seq_read, | |
1287 | .llseek = seq_lseek, | |
1288 | .release = single_release, | |
1289 | }; | |
1290 | ||
1291 | static void samsung_debugfs_exit(struct samsung_laptop *samsung) | |
1292 | { | |
1293 | debugfs_remove_recursive(samsung->debug.root); | |
1294 | } | |
1295 | ||
1296 | static int samsung_debugfs_init(struct samsung_laptop *samsung) | |
1297 | { | |
1298 | struct dentry *dent; | |
1299 | ||
1300 | samsung->debug.root = debugfs_create_dir("samsung-laptop", NULL); | |
1301 | if (!samsung->debug.root) { | |
1302 | pr_err("failed to create debugfs directory"); | |
1303 | goto error_debugfs; | |
1304 | } | |
1305 | ||
1306 | samsung->debug.f0000_wrapper.data = samsung->f0000_segment; | |
1307 | samsung->debug.f0000_wrapper.size = 0xffff; | |
1308 | ||
1309 | samsung->debug.data_wrapper.data = &samsung->debug.data; | |
1310 | samsung->debug.data_wrapper.size = sizeof(samsung->debug.data); | |
1311 | ||
6f6ae06e CC |
1312 | samsung->debug.sdiag_wrapper.data = samsung->sdiag; |
1313 | samsung->debug.sdiag_wrapper.size = strlen(samsung->sdiag); | |
1314 | ||
5b80fc40 CC |
1315 | dent = debugfs_create_u16("command", S_IRUGO | S_IWUSR, |
1316 | samsung->debug.root, &samsung->debug.command); | |
1317 | if (!dent) | |
1318 | goto error_debugfs; | |
1319 | ||
1320 | dent = debugfs_create_u32("d0", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1321 | &samsung->debug.data.d0); | |
1322 | if (!dent) | |
1323 | goto error_debugfs; | |
1324 | ||
1325 | dent = debugfs_create_u32("d1", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1326 | &samsung->debug.data.d1); | |
1327 | if (!dent) | |
1328 | goto error_debugfs; | |
1329 | ||
1330 | dent = debugfs_create_u16("d2", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1331 | &samsung->debug.data.d2); | |
1332 | if (!dent) | |
1333 | goto error_debugfs; | |
1334 | ||
1335 | dent = debugfs_create_u8("d3", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1336 | &samsung->debug.data.d3); | |
1337 | if (!dent) | |
1338 | goto error_debugfs; | |
1339 | ||
1340 | dent = debugfs_create_blob("data", S_IRUGO | S_IWUSR, | |
1341 | samsung->debug.root, | |
1342 | &samsung->debug.data_wrapper); | |
1343 | if (!dent) | |
1344 | goto error_debugfs; | |
1345 | ||
1346 | dent = debugfs_create_blob("f0000_segment", S_IRUSR | S_IWUSR, | |
1347 | samsung->debug.root, | |
1348 | &samsung->debug.f0000_wrapper); | |
1349 | if (!dent) | |
1350 | goto error_debugfs; | |
1351 | ||
1352 | dent = debugfs_create_file("call", S_IFREG | S_IRUGO, | |
1353 | samsung->debug.root, samsung, | |
1354 | &samsung_laptop_call_io_ops); | |
1355 | if (!dent) | |
1356 | goto error_debugfs; | |
1357 | ||
6f6ae06e CC |
1358 | dent = debugfs_create_blob("sdiag", S_IRUGO | S_IWUSR, |
1359 | samsung->debug.root, | |
1360 | &samsung->debug.sdiag_wrapper); | |
1361 | if (!dent) | |
1362 | goto error_debugfs; | |
1363 | ||
5b80fc40 CC |
1364 | return 0; |
1365 | ||
1366 | error_debugfs: | |
1367 | samsung_debugfs_exit(samsung); | |
1368 | return -ENOMEM; | |
1369 | } | |
1370 | ||
5dea7a20 CC |
1371 | static void samsung_sabi_exit(struct samsung_laptop *samsung) |
1372 | { | |
1373 | const struct sabi_config *config = samsung->config; | |
1374 | ||
1375 | /* Turn off "Linux" mode in the BIOS */ | |
1376 | if (config && config->commands.set_linux != 0xff) | |
7e960711 | 1377 | sabi_set_commandb(samsung, config->commands.set_linux, 0x80); |
5dea7a20 CC |
1378 | |
1379 | if (samsung->sabi_iface) { | |
1380 | iounmap(samsung->sabi_iface); | |
1381 | samsung->sabi_iface = NULL; | |
1382 | } | |
1383 | if (samsung->f0000_segment) { | |
1384 | iounmap(samsung->f0000_segment); | |
1385 | samsung->f0000_segment = NULL; | |
1386 | } | |
1387 | ||
1388 | samsung->config = NULL; | |
1389 | } | |
1390 | ||
49dd7730 CC |
1391 | static __init void samsung_sabi_infos(struct samsung_laptop *samsung, int loca, |
1392 | unsigned int ifaceP) | |
5dea7a20 CC |
1393 | { |
1394 | const struct sabi_config *config = samsung->config; | |
1395 | ||
1396 | printk(KERN_DEBUG "This computer supports SABI==%x\n", | |
1397 | loca + 0xf0000 - 6); | |
49dd7730 | 1398 | |
5dea7a20 CC |
1399 | printk(KERN_DEBUG "SABI header:\n"); |
1400 | printk(KERN_DEBUG " SMI Port Number = 0x%04x\n", | |
1401 | readw(samsung->sabi + config->header_offsets.port)); | |
1402 | printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n", | |
1403 | readb(samsung->sabi + config->header_offsets.iface_func)); | |
1404 | printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n", | |
1405 | readb(samsung->sabi + config->header_offsets.en_mem)); | |
1406 | printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n", | |
1407 | readb(samsung->sabi + config->header_offsets.re_mem)); | |
1408 | printk(KERN_DEBUG " SABI data offset = 0x%04x\n", | |
1409 | readw(samsung->sabi + config->header_offsets.data_offset)); | |
1410 | printk(KERN_DEBUG " SABI data segment = 0x%04x\n", | |
1411 | readw(samsung->sabi + config->header_offsets.data_segment)); | |
5dea7a20 | 1412 | |
49dd7730 | 1413 | printk(KERN_DEBUG " SABI pointer = 0x%08x\n", ifaceP); |
5dea7a20 CC |
1414 | } |
1415 | ||
6f6ae06e CC |
1416 | static void __init samsung_sabi_diag(struct samsung_laptop *samsung) |
1417 | { | |
1418 | int loca = find_signature(samsung->f0000_segment, "SDiaG@"); | |
1419 | int i; | |
1420 | ||
1421 | if (loca == 0xffff) | |
1422 | return ; | |
1423 | ||
1424 | /* Example: | |
1425 | * Ident: @SDiaG@686XX-N90X3A/966-SEC-07HL-S90X3A | |
1426 | * | |
1427 | * Product name: 90X3A | |
1428 | * BIOS Version: 07HL | |
1429 | */ | |
1430 | loca += 1; | |
1431 | for (i = 0; loca < 0xffff && i < sizeof(samsung->sdiag) - 1; loca++) { | |
1432 | char temp = readb(samsung->f0000_segment + loca); | |
1433 | ||
1434 | if (isalnum(temp) || temp == '/' || temp == '-') | |
1435 | samsung->sdiag[i++] = temp; | |
1436 | else | |
1437 | break ; | |
1438 | } | |
1439 | ||
1440 | if (debug && samsung->sdiag[0]) | |
1441 | pr_info("sdiag: %s", samsung->sdiag); | |
1442 | } | |
1443 | ||
5dea7a20 CC |
1444 | static int __init samsung_sabi_init(struct samsung_laptop *samsung) |
1445 | { | |
1446 | const struct sabi_config *config = NULL; | |
1447 | const struct sabi_commands *commands; | |
1448 | unsigned int ifaceP; | |
0d2c9535 | 1449 | int loca = 0xffff; |
5dea7a20 CC |
1450 | int ret = 0; |
1451 | int i; | |
5dea7a20 CC |
1452 | |
1453 | samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff); | |
1454 | if (!samsung->f0000_segment) { | |
3be324a9 CC |
1455 | if (debug || force) |
1456 | pr_err("Can't map the segment at 0xf0000\n"); | |
5dea7a20 CC |
1457 | ret = -EINVAL; |
1458 | goto exit; | |
1459 | } | |
1460 | ||
6f6ae06e CC |
1461 | samsung_sabi_diag(samsung); |
1462 | ||
5dea7a20 | 1463 | /* Try to find one of the signatures in memory to find the header */ |
4e7f09ad | 1464 | for (i = 0; sabi_configs[i].test_string != NULL; ++i) { |
5dea7a20 CC |
1465 | samsung->config = &sabi_configs[i]; |
1466 | loca = find_signature(samsung->f0000_segment, | |
1467 | samsung->config->test_string); | |
1468 | if (loca != 0xffff) | |
1469 | break; | |
1470 | } | |
1471 | ||
1472 | if (loca == 0xffff) { | |
3be324a9 CC |
1473 | if (debug || force) |
1474 | pr_err("This computer does not support SABI\n"); | |
5dea7a20 CC |
1475 | ret = -ENODEV; |
1476 | goto exit; | |
1477 | } | |
1478 | ||
1479 | config = samsung->config; | |
1480 | commands = &config->commands; | |
1481 | ||
1482 | /* point to the SMI port Number */ | |
1483 | loca += 1; | |
1484 | samsung->sabi = (samsung->f0000_segment + loca); | |
1485 | ||
5dea7a20 CC |
1486 | /* Get a pointer to the SABI Interface */ |
1487 | ifaceP = (readw(samsung->sabi + config->header_offsets.data_segment) & 0x0ffff) << 4; | |
1488 | ifaceP += readw(samsung->sabi + config->header_offsets.data_offset) & 0x0ffff; | |
49dd7730 CC |
1489 | |
1490 | if (debug) | |
1491 | samsung_sabi_infos(samsung, loca, ifaceP); | |
1492 | ||
5dea7a20 CC |
1493 | samsung->sabi_iface = ioremap_nocache(ifaceP, 16); |
1494 | if (!samsung->sabi_iface) { | |
1495 | pr_err("Can't remap %x\n", ifaceP); | |
1496 | ret = -EINVAL; | |
1497 | goto exit; | |
1498 | } | |
1499 | ||
5dea7a20 CC |
1500 | /* Turn on "Linux" mode in the BIOS */ |
1501 | if (commands->set_linux != 0xff) { | |
7e960711 CC |
1502 | int retval = sabi_set_commandb(samsung, |
1503 | commands->set_linux, 0x81); | |
5dea7a20 CC |
1504 | if (retval) { |
1505 | pr_warn("Linux mode was not set!\n"); | |
1506 | ret = -ENODEV; | |
1507 | goto exit; | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | /* Check for stepping quirk */ | |
f34cd9ca CC |
1512 | if (samsung->handle_backlight) |
1513 | check_for_stepping_quirk(samsung); | |
5dea7a20 | 1514 | |
2e777187 CC |
1515 | pr_info("detected SABI interface: %s\n", |
1516 | samsung->config->test_string); | |
1517 | ||
5dea7a20 CC |
1518 | exit: |
1519 | if (ret) | |
1520 | samsung_sabi_exit(samsung); | |
1521 | ||
1522 | return ret; | |
1523 | } | |
1524 | ||
1525 | static void samsung_platform_exit(struct samsung_laptop *samsung) | |
1526 | { | |
1527 | if (samsung->platform_device) { | |
1528 | platform_device_unregister(samsung->platform_device); | |
1529 | samsung->platform_device = NULL; | |
1530 | } | |
1531 | } | |
1532 | ||
0ca849ea ST |
1533 | static int samsung_pm_notification(struct notifier_block *nb, |
1534 | unsigned long val, void *ptr) | |
1535 | { | |
1536 | struct samsung_laptop *samsung; | |
1537 | ||
1538 | samsung = container_of(nb, struct samsung_laptop, pm_nb); | |
1539 | if (val == PM_POST_HIBERNATION && | |
1540 | samsung->quirks->enable_kbd_backlight) | |
1541 | kbd_backlight_enable(samsung); | |
1542 | ||
b0dcaf4f JK |
1543 | if (val == PM_POST_HIBERNATION && samsung->quirks->lid_handling) |
1544 | write_lid_handling(samsung, 1); | |
1545 | ||
0ca849ea ST |
1546 | return 0; |
1547 | } | |
1548 | ||
5dea7a20 CC |
1549 | static int __init samsung_platform_init(struct samsung_laptop *samsung) |
1550 | { | |
1551 | struct platform_device *pdev; | |
1552 | ||
1553 | pdev = platform_device_register_simple("samsung", -1, NULL, 0); | |
1554 | if (IS_ERR(pdev)) | |
1555 | return PTR_ERR(pdev); | |
1556 | ||
1557 | samsung->platform_device = pdev; | |
1558 | platform_set_drvdata(samsung->platform_device, samsung); | |
1559 | return 0; | |
1560 | } | |
1561 | ||
a979e2e2 CC |
1562 | static struct samsung_quirks *quirks; |
1563 | ||
1564 | static int __init samsung_dmi_matched(const struct dmi_system_id *d) | |
1565 | { | |
1566 | quirks = d->driver_data; | |
1567 | return 0; | |
1568 | } | |
1569 | ||
6faadbbb | 1570 | static const struct dmi_system_id samsung_dmi_table[] __initconst = { |
2d70b73a | 1571 | { |
2d70b73a GKH |
1572 | .matches = { |
1573 | DMI_MATCH(DMI_SYS_VENDOR, | |
1574 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1575 | DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ |
2d70b73a | 1576 | }, |
2d70b73a GKH |
1577 | }, |
1578 | { | |
2d70b73a GKH |
1579 | .matches = { |
1580 | DMI_MATCH(DMI_SYS_VENDOR, | |
1581 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1582 | DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */ |
2d70b73a | 1583 | }, |
2d70b73a | 1584 | }, |
78a7539b | 1585 | { |
78a7539b TC |
1586 | .matches = { |
1587 | DMI_MATCH(DMI_SYS_VENDOR, | |
1588 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1589 | DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */ |
78a7539b | 1590 | }, |
78a7539b | 1591 | }, |
f689c875 | 1592 | { |
f689c875 RGS |
1593 | .matches = { |
1594 | DMI_MATCH(DMI_SYS_VENDOR, | |
1595 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1596 | DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */ |
f689c875 | 1597 | }, |
7b3c257c | 1598 | }, |
e052067d CC |
1599 | /* DMI ids for laptops with bad Chassis Type */ |
1600 | { | |
1601 | .ident = "R40/R41", | |
1602 | .matches = { | |
1603 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1604 | DMI_MATCH(DMI_PRODUCT_NAME, "R40/R41"), | |
1605 | DMI_MATCH(DMI_BOARD_NAME, "R40/R41"), | |
1606 | }, | |
1607 | }, | |
a979e2e2 CC |
1608 | /* Specific DMI ids for laptop with quirks */ |
1609 | { | |
1610 | .callback = samsung_dmi_matched, | |
1611 | .ident = "N150P", | |
1612 | .matches = { | |
1613 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1614 | DMI_MATCH(DMI_PRODUCT_NAME, "N150P"), | |
1615 | DMI_MATCH(DMI_BOARD_NAME, "N150P"), | |
1616 | }, | |
4690555e | 1617 | .driver_data = &samsung_use_native_backlight, |
a979e2e2 CC |
1618 | }, |
1619 | { | |
1620 | .callback = samsung_dmi_matched, | |
1621 | .ident = "N145P/N250P/N260P", | |
1622 | .matches = { | |
1623 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1624 | DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"), | |
1625 | DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"), | |
1626 | }, | |
4690555e | 1627 | .driver_data = &samsung_use_native_backlight, |
a979e2e2 CC |
1628 | }, |
1629 | { | |
1630 | .callback = samsung_dmi_matched, | |
1631 | .ident = "N150/N210/N220", | |
1632 | .matches = { | |
1633 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1634 | DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"), | |
1635 | DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"), | |
1636 | }, | |
1637 | .driver_data = &samsung_broken_acpi_video, | |
1638 | }, | |
1639 | { | |
1640 | .callback = samsung_dmi_matched, | |
1641 | .ident = "NF110/NF210/NF310", | |
1642 | .matches = { | |
1643 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1644 | DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"), | |
1645 | DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"), | |
1646 | }, | |
1647 | .driver_data = &samsung_broken_acpi_video, | |
1648 | }, | |
09d5677c CC |
1649 | { |
1650 | .callback = samsung_dmi_matched, | |
1651 | .ident = "X360", | |
1652 | .matches = { | |
1653 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1654 | DMI_MATCH(DMI_PRODUCT_NAME, "X360"), | |
1655 | DMI_MATCH(DMI_BOARD_NAME, "X360"), | |
1656 | }, | |
1657 | .driver_data = &samsung_broken_acpi_video, | |
1658 | }, | |
e04c200f SF |
1659 | { |
1660 | .callback = samsung_dmi_matched, | |
1661 | .ident = "N250P", | |
1662 | .matches = { | |
1663 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1664 | DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), | |
1665 | DMI_MATCH(DMI_BOARD_NAME, "N250P"), | |
1666 | }, | |
4690555e | 1667 | .driver_data = &samsung_use_native_backlight, |
e04c200f | 1668 | }, |
5a1426c9 HG |
1669 | { |
1670 | .callback = samsung_dmi_matched, | |
1671 | .ident = "NC210", | |
1672 | .matches = { | |
1673 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1674 | DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"), | |
1675 | DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"), | |
1676 | }, | |
1677 | .driver_data = &samsung_broken_acpi_video, | |
1678 | }, | |
0ca849ea ST |
1679 | { |
1680 | .callback = samsung_dmi_matched, | |
1681 | .ident = "730U3E/740U3E", | |
1682 | .matches = { | |
1683 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1684 | DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), | |
1685 | }, | |
1686 | .driver_data = &samsung_np740u3e, | |
1687 | }, | |
b0dcaf4f JK |
1688 | { |
1689 | .callback = samsung_dmi_matched, | |
1690 | .ident = "300V3Z/300V4Z/300V5Z", | |
1691 | .matches = { | |
1692 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1693 | DMI_MATCH(DMI_PRODUCT_NAME, "300V3Z/300V4Z/300V5Z"), | |
1694 | }, | |
1695 | .driver_data = &samsung_lid_handling, | |
1696 | }, | |
2d70b73a GKH |
1697 | { }, |
1698 | }; | |
1699 | MODULE_DEVICE_TABLE(dmi, samsung_dmi_table); | |
1700 | ||
5dea7a20 | 1701 | static struct platform_device *samsung_platform_device; |
2d70b73a GKH |
1702 | |
1703 | static int __init samsung_init(void) | |
1704 | { | |
5dea7a20 CC |
1705 | struct samsung_laptop *samsung; |
1706 | int ret; | |
2d70b73a | 1707 | |
e0094244 MF |
1708 | if (efi_enabled(EFI_BOOT)) |
1709 | return -ENODEV; | |
1710 | ||
a979e2e2 | 1711 | quirks = &samsung_unknown; |
2d70b73a GKH |
1712 | if (!force && !dmi_check_system(samsung_dmi_table)) |
1713 | return -ENODEV; | |
1714 | ||
a6df4894 CC |
1715 | samsung = kzalloc(sizeof(*samsung), GFP_KERNEL); |
1716 | if (!samsung) | |
1717 | return -ENOMEM; | |
1718 | ||
1719 | mutex_init(&samsung->sabi_mutex); | |
f34cd9ca | 1720 | samsung->handle_backlight = true; |
a979e2e2 | 1721 | samsung->quirks = quirks; |
f34cd9ca | 1722 | |
a60b2176 CC |
1723 | #ifdef CONFIG_ACPI |
1724 | if (samsung->quirks->broken_acpi_video) | |
6c072299 HG |
1725 | acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); |
1726 | if (samsung->quirks->use_native_backlight) | |
1727 | acpi_video_set_dmi_backlight_type(acpi_backlight_native); | |
4690555e | 1728 | |
6c072299 | 1729 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) |
4690555e | 1730 | samsung->handle_backlight = false; |
f34cd9ca | 1731 | #endif |
a979e2e2 | 1732 | |
5dea7a20 CC |
1733 | ret = samsung_platform_init(samsung); |
1734 | if (ret) | |
1735 | goto error_platform; | |
1736 | ||
1737 | ret = samsung_sabi_init(samsung); | |
1738 | if (ret) | |
1739 | goto error_sabi; | |
1740 | ||
1741 | ret = samsung_sysfs_init(samsung); | |
1742 | if (ret) | |
1743 | goto error_sysfs; | |
1744 | ||
1745 | ret = samsung_backlight_init(samsung); | |
1746 | if (ret) | |
1747 | goto error_backlight; | |
1748 | ||
1749 | ret = samsung_rfkill_init(samsung); | |
1750 | if (ret) | |
1751 | goto error_rfkill; | |
1752 | ||
f674ebf1 CC |
1753 | ret = samsung_leds_init(samsung); |
1754 | if (ret) | |
1755 | goto error_leds; | |
1756 | ||
b0dcaf4f JK |
1757 | ret = samsung_lid_handling_init(samsung); |
1758 | if (ret) | |
1759 | goto error_lid_handling; | |
1760 | ||
5b80fc40 CC |
1761 | ret = samsung_debugfs_init(samsung); |
1762 | if (ret) | |
1763 | goto error_debugfs; | |
1764 | ||
0ca849ea ST |
1765 | samsung->pm_nb.notifier_call = samsung_pm_notification; |
1766 | register_pm_notifier(&samsung->pm_nb); | |
1767 | ||
5dea7a20 CC |
1768 | samsung_platform_device = samsung->platform_device; |
1769 | return ret; | |
1770 | ||
5b80fc40 | 1771 | error_debugfs: |
b0dcaf4f JK |
1772 | samsung_lid_handling_exit(samsung); |
1773 | error_lid_handling: | |
f674ebf1 CC |
1774 | samsung_leds_exit(samsung); |
1775 | error_leds: | |
5b80fc40 | 1776 | samsung_rfkill_exit(samsung); |
5dea7a20 CC |
1777 | error_rfkill: |
1778 | samsung_backlight_exit(samsung); | |
1779 | error_backlight: | |
1780 | samsung_sysfs_exit(samsung); | |
1781 | error_sysfs: | |
1782 | samsung_sabi_exit(samsung); | |
1783 | error_sabi: | |
1784 | samsung_platform_exit(samsung); | |
1785 | error_platform: | |
a6df4894 | 1786 | kfree(samsung); |
5dea7a20 | 1787 | return ret; |
2d70b73a GKH |
1788 | } |
1789 | ||
1790 | static void __exit samsung_exit(void) | |
1791 | { | |
5dea7a20 CC |
1792 | struct samsung_laptop *samsung; |
1793 | ||
1794 | samsung = platform_get_drvdata(samsung_platform_device); | |
0ca849ea | 1795 | unregister_pm_notifier(&samsung->pm_nb); |
5dea7a20 | 1796 | |
5b80fc40 | 1797 | samsung_debugfs_exit(samsung); |
b0dcaf4f | 1798 | samsung_lid_handling_exit(samsung); |
f674ebf1 | 1799 | samsung_leds_exit(samsung); |
5dea7a20 CC |
1800 | samsung_rfkill_exit(samsung); |
1801 | samsung_backlight_exit(samsung); | |
1802 | samsung_sysfs_exit(samsung); | |
1803 | samsung_sabi_exit(samsung); | |
1804 | samsung_platform_exit(samsung); | |
a6df4894 | 1805 | |
a6df4894 | 1806 | kfree(samsung); |
5dea7a20 | 1807 | samsung_platform_device = NULL; |
2d70b73a GKH |
1808 | } |
1809 | ||
1810 | module_init(samsung_init); | |
1811 | module_exit(samsung_exit); | |
1812 | ||
1813 | MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>"); | |
1814 | MODULE_DESCRIPTION("Samsung Backlight driver"); | |
1815 | MODULE_LICENSE("GPL"); |