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Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
2d70b73a GKH |
2 | /* |
3 | * Samsung Laptop driver | |
4 | * | |
5 | * Copyright (C) 2009,2011 Greg Kroah-Hartman (gregkh@suse.de) | |
6 | * Copyright (C) 2009,2011 Novell Inc. | |
2d70b73a GKH |
7 | */ |
8 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/delay.h> | |
14 | #include <linux/pci.h> | |
15 | #include <linux/backlight.h> | |
f674ebf1 | 16 | #include <linux/leds.h> |
2d70b73a GKH |
17 | #include <linux/fb.h> |
18 | #include <linux/dmi.h> | |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/rfkill.h> | |
f34cd9ca | 21 | #include <linux/acpi.h> |
5b80fc40 CC |
22 | #include <linux/seq_file.h> |
23 | #include <linux/debugfs.h> | |
82c333aa | 24 | #include <linux/ctype.h> |
e0094244 | 25 | #include <linux/efi.h> |
0ca849ea | 26 | #include <linux/suspend.h> |
a979e2e2 | 27 | #include <acpi/video.h> |
2d70b73a GKH |
28 | |
29 | /* | |
30 | * This driver is needed because a number of Samsung laptops do not hook | |
31 | * their control settings through ACPI. So we have to poke around in the | |
32 | * BIOS to do things like brightness values, and "special" key controls. | |
33 | */ | |
34 | ||
35 | /* | |
36 | * We have 0 - 8 as valid brightness levels. The specs say that level 0 should | |
37 | * be reserved by the BIOS (which really doesn't make much sense), we tell | |
38 | * userspace that the value is 0 - 7 and then just tell the hardware 1 - 8 | |
39 | */ | |
40 | #define MAX_BRIGHT 0x07 | |
41 | ||
42 | ||
43 | #define SABI_IFACE_MAIN 0x00 | |
44 | #define SABI_IFACE_SUB 0x02 | |
45 | #define SABI_IFACE_COMPLETE 0x04 | |
46 | #define SABI_IFACE_DATA 0x05 | |
47 | ||
84d482f2 CC |
48 | #define WL_STATUS_WLAN 0x0 |
49 | #define WL_STATUS_BT 0x2 | |
50 | ||
7e960711 CC |
51 | /* Structure get/set data using sabi */ |
52 | struct sabi_data { | |
53 | union { | |
54 | struct { | |
55 | u32 d0; | |
56 | u32 d1; | |
57 | u16 d2; | |
58 | u8 d3; | |
59 | }; | |
60 | u8 data[11]; | |
61 | }; | |
2d70b73a GKH |
62 | }; |
63 | ||
64 | struct sabi_header_offsets { | |
65 | u8 port; | |
66 | u8 re_mem; | |
67 | u8 iface_func; | |
68 | u8 en_mem; | |
69 | u8 data_offset; | |
70 | u8 data_segment; | |
71 | }; | |
72 | ||
73 | struct sabi_commands { | |
74 | /* | |
75 | * Brightness is 0 - 8, as described above. | |
76 | * Value 0 is for the BIOS to use | |
77 | */ | |
7e960711 CC |
78 | u16 get_brightness; |
79 | u16 set_brightness; | |
2d70b73a GKH |
80 | |
81 | /* | |
82 | * first byte: | |
83 | * 0x00 - wireless is off | |
84 | * 0x01 - wireless is on | |
85 | * second byte: | |
86 | * 0x02 - 3G is off | |
87 | * 0x03 - 3G is on | |
88 | * TODO, verify 3G is correct, that doesn't seem right... | |
89 | */ | |
7e960711 CC |
90 | u16 get_wireless_button; |
91 | u16 set_wireless_button; | |
2d70b73a GKH |
92 | |
93 | /* 0 is off, 1 is on */ | |
7e960711 CC |
94 | u16 get_backlight; |
95 | u16 set_backlight; | |
2d70b73a GKH |
96 | |
97 | /* | |
98 | * 0x80 or 0x00 - no action | |
99 | * 0x81 - recovery key pressed | |
100 | */ | |
7e960711 CC |
101 | u16 get_recovery_mode; |
102 | u16 set_recovery_mode; | |
2d70b73a GKH |
103 | |
104 | /* | |
105 | * on seclinux: 0 is low, 1 is high, | |
106 | * on swsmi: 0 is normal, 1 is silent, 2 is turbo | |
107 | */ | |
7e960711 CC |
108 | u16 get_performance_level; |
109 | u16 set_performance_level; | |
2d70b73a | 110 | |
cb5b5c91 CC |
111 | /* 0x80 is off, 0x81 is on */ |
112 | u16 get_battery_life_extender; | |
113 | u16 set_battery_life_extender; | |
114 | ||
3a75d378 CC |
115 | /* 0x80 is off, 0x81 is on */ |
116 | u16 get_usb_charge; | |
117 | u16 set_usb_charge; | |
118 | ||
84d482f2 CC |
119 | /* the first byte is for bluetooth and the third one is for wlan */ |
120 | u16 get_wireless_status; | |
121 | u16 set_wireless_status; | |
122 | ||
b0dcaf4f JK |
123 | /* 0x80 is off, 0x81 is on */ |
124 | u16 get_lid_handling; | |
125 | u16 set_lid_handling; | |
126 | ||
f674ebf1 CC |
127 | /* 0x81 to read, (0x82 | level << 8) to set, 0xaabb to enable */ |
128 | u16 kbd_backlight; | |
129 | ||
2d70b73a GKH |
130 | /* |
131 | * Tell the BIOS that Linux is running on this machine. | |
132 | * 81 is on, 80 is off | |
133 | */ | |
7e960711 | 134 | u16 set_linux; |
2d70b73a GKH |
135 | }; |
136 | ||
137 | struct sabi_performance_level { | |
138 | const char *name; | |
7e960711 | 139 | u16 value; |
2d70b73a GKH |
140 | }; |
141 | ||
142 | struct sabi_config { | |
84d482f2 | 143 | int sabi_version; |
2d70b73a GKH |
144 | const char *test_string; |
145 | u16 main_function; | |
146 | const struct sabi_header_offsets header_offsets; | |
147 | const struct sabi_commands commands; | |
148 | const struct sabi_performance_level performance_levels[4]; | |
149 | u8 min_brightness; | |
150 | u8 max_brightness; | |
151 | }; | |
152 | ||
153 | static const struct sabi_config sabi_configs[] = { | |
154 | { | |
84d482f2 CC |
155 | /* I don't know if it is really 2, but it it is |
156 | * less than 3 anyway */ | |
157 | .sabi_version = 2, | |
158 | ||
2d70b73a GKH |
159 | .test_string = "SECLINUX", |
160 | ||
161 | .main_function = 0x4c49, | |
162 | ||
163 | .header_offsets = { | |
164 | .port = 0x00, | |
165 | .re_mem = 0x02, | |
166 | .iface_func = 0x03, | |
167 | .en_mem = 0x04, | |
168 | .data_offset = 0x05, | |
169 | .data_segment = 0x07, | |
170 | }, | |
171 | ||
172 | .commands = { | |
173 | .get_brightness = 0x00, | |
174 | .set_brightness = 0x01, | |
175 | ||
176 | .get_wireless_button = 0x02, | |
177 | .set_wireless_button = 0x03, | |
178 | ||
179 | .get_backlight = 0x04, | |
180 | .set_backlight = 0x05, | |
181 | ||
182 | .get_recovery_mode = 0x06, | |
183 | .set_recovery_mode = 0x07, | |
184 | ||
185 | .get_performance_level = 0x08, | |
186 | .set_performance_level = 0x09, | |
187 | ||
cb5b5c91 CC |
188 | .get_battery_life_extender = 0xFFFF, |
189 | .set_battery_life_extender = 0xFFFF, | |
190 | ||
3a75d378 CC |
191 | .get_usb_charge = 0xFFFF, |
192 | .set_usb_charge = 0xFFFF, | |
193 | ||
84d482f2 CC |
194 | .get_wireless_status = 0xFFFF, |
195 | .set_wireless_status = 0xFFFF, | |
196 | ||
b0dcaf4f JK |
197 | .get_lid_handling = 0xFFFF, |
198 | .set_lid_handling = 0xFFFF, | |
199 | ||
f674ebf1 CC |
200 | .kbd_backlight = 0xFFFF, |
201 | ||
2d70b73a GKH |
202 | .set_linux = 0x0a, |
203 | }, | |
204 | ||
205 | .performance_levels = { | |
206 | { | |
207 | .name = "silent", | |
208 | .value = 0, | |
209 | }, | |
210 | { | |
211 | .name = "normal", | |
212 | .value = 1, | |
213 | }, | |
214 | { }, | |
215 | }, | |
216 | .min_brightness = 1, | |
217 | .max_brightness = 8, | |
218 | }, | |
219 | { | |
84d482f2 CC |
220 | .sabi_version = 3, |
221 | ||
2d70b73a GKH |
222 | .test_string = "SwSmi@", |
223 | ||
224 | .main_function = 0x5843, | |
225 | ||
226 | .header_offsets = { | |
227 | .port = 0x00, | |
228 | .re_mem = 0x04, | |
229 | .iface_func = 0x02, | |
230 | .en_mem = 0x03, | |
231 | .data_offset = 0x05, | |
232 | .data_segment = 0x07, | |
233 | }, | |
234 | ||
235 | .commands = { | |
236 | .get_brightness = 0x10, | |
237 | .set_brightness = 0x11, | |
238 | ||
239 | .get_wireless_button = 0x12, | |
240 | .set_wireless_button = 0x13, | |
241 | ||
242 | .get_backlight = 0x2d, | |
243 | .set_backlight = 0x2e, | |
244 | ||
245 | .get_recovery_mode = 0xff, | |
246 | .set_recovery_mode = 0xff, | |
247 | ||
248 | .get_performance_level = 0x31, | |
249 | .set_performance_level = 0x32, | |
250 | ||
cb5b5c91 CC |
251 | .get_battery_life_extender = 0x65, |
252 | .set_battery_life_extender = 0x66, | |
253 | ||
3a75d378 CC |
254 | .get_usb_charge = 0x67, |
255 | .set_usb_charge = 0x68, | |
256 | ||
84d482f2 CC |
257 | .get_wireless_status = 0x69, |
258 | .set_wireless_status = 0x6a, | |
259 | ||
b0dcaf4f JK |
260 | .get_lid_handling = 0x6d, |
261 | .set_lid_handling = 0x6e, | |
262 | ||
f674ebf1 CC |
263 | .kbd_backlight = 0x78, |
264 | ||
2d70b73a GKH |
265 | .set_linux = 0xff, |
266 | }, | |
267 | ||
268 | .performance_levels = { | |
269 | { | |
270 | .name = "normal", | |
271 | .value = 0, | |
272 | }, | |
273 | { | |
274 | .name = "silent", | |
275 | .value = 1, | |
276 | }, | |
277 | { | |
278 | .name = "overclock", | |
279 | .value = 2, | |
280 | }, | |
281 | { }, | |
282 | }, | |
283 | .min_brightness = 0, | |
284 | .max_brightness = 8, | |
285 | }, | |
286 | { }, | |
287 | }; | |
288 | ||
5b80fc40 CC |
289 | /* |
290 | * samsung-laptop/ - debugfs root directory | |
291 | * f0000_segment - dump f0000 segment | |
292 | * command - current command | |
293 | * data - current data | |
294 | * d0, d1, d2, d3 - data fields | |
295 | * call - call SABI using command and data | |
296 | * | |
297 | * This allow to call arbitrary sabi commands wihout | |
298 | * modifying the driver at all. | |
299 | * For example, setting the keyboard backlight brightness to 5 | |
300 | * | |
301 | * echo 0x78 > command | |
302 | * echo 0x0582 > d0 | |
303 | * echo 0 > d1 | |
304 | * echo 0 > d2 | |
305 | * echo 0 > d3 | |
306 | * cat call | |
307 | */ | |
308 | ||
309 | struct samsung_laptop_debug { | |
310 | struct dentry *root; | |
311 | struct sabi_data data; | |
312 | u16 command; | |
313 | ||
314 | struct debugfs_blob_wrapper f0000_wrapper; | |
315 | struct debugfs_blob_wrapper data_wrapper; | |
6f6ae06e | 316 | struct debugfs_blob_wrapper sdiag_wrapper; |
5b80fc40 CC |
317 | }; |
318 | ||
84d482f2 CC |
319 | struct samsung_laptop; |
320 | ||
321 | struct samsung_rfkill { | |
322 | struct samsung_laptop *samsung; | |
323 | struct rfkill *rfkill; | |
324 | enum rfkill_type type; | |
325 | }; | |
326 | ||
a6df4894 CC |
327 | struct samsung_laptop { |
328 | const struct sabi_config *config; | |
2d70b73a | 329 | |
a6df4894 CC |
330 | void __iomem *sabi; |
331 | void __iomem *sabi_iface; | |
332 | void __iomem *f0000_segment; | |
333 | ||
334 | struct mutex sabi_mutex; | |
335 | ||
5dea7a20 | 336 | struct platform_device *platform_device; |
a6df4894 | 337 | struct backlight_device *backlight_device; |
84d482f2 CC |
338 | |
339 | struct samsung_rfkill wlan; | |
340 | struct samsung_rfkill bluetooth; | |
a6df4894 | 341 | |
f674ebf1 CC |
342 | struct led_classdev kbd_led; |
343 | int kbd_led_wk; | |
344 | struct workqueue_struct *led_workqueue; | |
345 | struct work_struct kbd_led_work; | |
346 | ||
5b80fc40 | 347 | struct samsung_laptop_debug debug; |
a979e2e2 | 348 | struct samsung_quirks *quirks; |
5b80fc40 | 349 | |
0ca849ea ST |
350 | struct notifier_block pm_nb; |
351 | ||
f34cd9ca | 352 | bool handle_backlight; |
a6df4894 | 353 | bool has_stepping_quirk; |
6f6ae06e CC |
354 | |
355 | char sdiag[64]; | |
a6df4894 CC |
356 | }; |
357 | ||
a979e2e2 CC |
358 | struct samsung_quirks { |
359 | bool broken_acpi_video; | |
0ca849ea ST |
360 | bool four_kbd_backlight_levels; |
361 | bool enable_kbd_backlight; | |
4690555e | 362 | bool use_native_backlight; |
b0dcaf4f | 363 | bool lid_handling; |
a979e2e2 CC |
364 | }; |
365 | ||
366 | static struct samsung_quirks samsung_unknown = {}; | |
5dea7a20 | 367 | |
a979e2e2 CC |
368 | static struct samsung_quirks samsung_broken_acpi_video = { |
369 | .broken_acpi_video = true, | |
370 | }; | |
2d70b73a | 371 | |
4690555e HG |
372 | static struct samsung_quirks samsung_use_native_backlight = { |
373 | .use_native_backlight = true, | |
374 | }; | |
375 | ||
0ca849ea ST |
376 | static struct samsung_quirks samsung_np740u3e = { |
377 | .four_kbd_backlight_levels = true, | |
378 | .enable_kbd_backlight = true, | |
379 | }; | |
380 | ||
b0dcaf4f JK |
381 | static struct samsung_quirks samsung_lid_handling = { |
382 | .lid_handling = true, | |
383 | }; | |
384 | ||
90ab5ee9 | 385 | static bool force; |
2d70b73a GKH |
386 | module_param(force, bool, 0); |
387 | MODULE_PARM_DESC(force, | |
388 | "Disable the DMI check and forces the driver to be loaded"); | |
389 | ||
90ab5ee9 | 390 | static bool debug; |
2d70b73a GKH |
391 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
392 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
393 | ||
7e960711 CC |
394 | static int sabi_command(struct samsung_laptop *samsung, u16 command, |
395 | struct sabi_data *in, | |
396 | struct sabi_data *out) | |
2d70b73a | 397 | { |
a6df4894 | 398 | const struct sabi_config *config = samsung->config; |
7e960711 | 399 | int ret = 0; |
a6df4894 | 400 | u16 port = readw(samsung->sabi + config->header_offsets.port); |
2d70b73a GKH |
401 | u8 complete, iface_data; |
402 | ||
a6df4894 | 403 | mutex_lock(&samsung->sabi_mutex); |
2d70b73a | 404 | |
7e960711 CC |
405 | if (debug) { |
406 | if (in) | |
2e777187 CC |
407 | pr_info("SABI command:0x%04x " |
408 | "data:{0x%08x, 0x%08x, 0x%04x, 0x%02x}", | |
7e960711 CC |
409 | command, in->d0, in->d1, in->d2, in->d3); |
410 | else | |
2e777187 | 411 | pr_info("SABI command:0x%04x", command); |
7e960711 CC |
412 | } |
413 | ||
2d70b73a | 414 | /* enable memory to be able to write to it */ |
a6df4894 | 415 | outb(readb(samsung->sabi + config->header_offsets.en_mem), port); |
2d70b73a GKH |
416 | |
417 | /* write out the command */ | |
a6df4894 CC |
418 | writew(config->main_function, samsung->sabi_iface + SABI_IFACE_MAIN); |
419 | writew(command, samsung->sabi_iface + SABI_IFACE_SUB); | |
420 | writeb(0, samsung->sabi_iface + SABI_IFACE_COMPLETE); | |
7e960711 CC |
421 | if (in) { |
422 | writel(in->d0, samsung->sabi_iface + SABI_IFACE_DATA); | |
423 | writel(in->d1, samsung->sabi_iface + SABI_IFACE_DATA + 4); | |
424 | writew(in->d2, samsung->sabi_iface + SABI_IFACE_DATA + 8); | |
425 | writeb(in->d3, samsung->sabi_iface + SABI_IFACE_DATA + 10); | |
426 | } | |
a6df4894 | 427 | outb(readb(samsung->sabi + config->header_offsets.iface_func), port); |
2d70b73a GKH |
428 | |
429 | /* write protect memory to make it safe */ | |
a6df4894 | 430 | outb(readb(samsung->sabi + config->header_offsets.re_mem), port); |
2d70b73a GKH |
431 | |
432 | /* see if the command actually succeeded */ | |
a6df4894 CC |
433 | complete = readb(samsung->sabi_iface + SABI_IFACE_COMPLETE); |
434 | iface_data = readb(samsung->sabi_iface + SABI_IFACE_DATA); | |
2e777187 CC |
435 | |
436 | /* iface_data = 0xFF happens when a command is not known | |
437 | * so we only add a warning in debug mode since we will | |
438 | * probably issue some unknown command at startup to find | |
439 | * out which features are supported */ | |
440 | if (complete != 0xaa || (iface_data == 0xff && debug)) | |
7e960711 CC |
441 | pr_warn("SABI command 0x%04x failed with" |
442 | " completion flag 0x%02x and interface data 0x%02x", | |
443 | command, complete, iface_data); | |
2e777187 CC |
444 | |
445 | if (complete != 0xaa || iface_data == 0xff) { | |
7e960711 | 446 | ret = -EINVAL; |
2d70b73a GKH |
447 | goto exit; |
448 | } | |
7e960711 CC |
449 | |
450 | if (out) { | |
451 | out->d0 = readl(samsung->sabi_iface + SABI_IFACE_DATA); | |
452 | out->d1 = readl(samsung->sabi_iface + SABI_IFACE_DATA + 4); | |
453 | out->d2 = readw(samsung->sabi_iface + SABI_IFACE_DATA + 2); | |
454 | out->d3 = readb(samsung->sabi_iface + SABI_IFACE_DATA + 1); | |
455 | } | |
456 | ||
457 | if (debug && out) { | |
2e777187 | 458 | pr_info("SABI return data:{0x%08x, 0x%08x, 0x%04x, 0x%02x}", |
7e960711 CC |
459 | out->d0, out->d1, out->d2, out->d3); |
460 | } | |
2d70b73a GKH |
461 | |
462 | exit: | |
a6df4894 | 463 | mutex_unlock(&samsung->sabi_mutex); |
7e960711 | 464 | return ret; |
2d70b73a GKH |
465 | } |
466 | ||
7e960711 CC |
467 | /* simple wrappers usable with most commands */ |
468 | static int sabi_set_commandb(struct samsung_laptop *samsung, | |
469 | u16 command, u8 data) | |
2d70b73a | 470 | { |
85229440 | 471 | struct sabi_data in = { { { .d0 = 0, .d1 = 0, .d2 = 0, .d3 = 0 } } }; |
2d70b73a | 472 | |
7e960711 CC |
473 | in.data[0] = data; |
474 | return sabi_command(samsung, command, &in, NULL); | |
2d70b73a GKH |
475 | } |
476 | ||
5dea7a20 | 477 | static int read_brightness(struct samsung_laptop *samsung) |
2d70b73a | 478 | { |
a6df4894 CC |
479 | const struct sabi_config *config = samsung->config; |
480 | const struct sabi_commands *commands = &samsung->config->commands; | |
7e960711 | 481 | struct sabi_data sretval; |
2d70b73a GKH |
482 | int user_brightness = 0; |
483 | int retval; | |
484 | ||
7e960711 CC |
485 | retval = sabi_command(samsung, commands->get_brightness, |
486 | NULL, &sretval); | |
487 | if (retval) | |
488 | return retval; | |
489 | ||
490 | user_brightness = sretval.data[0]; | |
491 | if (user_brightness > config->min_brightness) | |
492 | user_brightness -= config->min_brightness; | |
493 | else | |
494 | user_brightness = 0; | |
495 | ||
2d70b73a GKH |
496 | return user_brightness; |
497 | } | |
498 | ||
5dea7a20 | 499 | static void set_brightness(struct samsung_laptop *samsung, u8 user_brightness) |
2d70b73a | 500 | { |
a6df4894 CC |
501 | const struct sabi_config *config = samsung->config; |
502 | const struct sabi_commands *commands = &samsung->config->commands; | |
503 | u8 user_level = user_brightness + config->min_brightness; | |
2d70b73a | 504 | |
a6df4894 | 505 | if (samsung->has_stepping_quirk && user_level != 0) { |
ac080523 JS |
506 | /* |
507 | * short circuit if the specified level is what's already set | |
508 | * to prevent the screen from flickering needlessly | |
509 | */ | |
5dea7a20 | 510 | if (user_brightness == read_brightness(samsung)) |
ac080523 JS |
511 | return; |
512 | ||
7e960711 | 513 | sabi_set_commandb(samsung, commands->set_brightness, 0); |
ac080523 JS |
514 | } |
515 | ||
7e960711 | 516 | sabi_set_commandb(samsung, commands->set_brightness, user_level); |
2d70b73a GKH |
517 | } |
518 | ||
519 | static int get_brightness(struct backlight_device *bd) | |
520 | { | |
5dea7a20 CC |
521 | struct samsung_laptop *samsung = bl_get_data(bd); |
522 | ||
523 | return read_brightness(samsung); | |
2d70b73a GKH |
524 | } |
525 | ||
5dea7a20 | 526 | static void check_for_stepping_quirk(struct samsung_laptop *samsung) |
ac080523 | 527 | { |
5dea7a20 CC |
528 | int initial_level; |
529 | int check_level; | |
530 | int orig_level = read_brightness(samsung); | |
ac080523 JS |
531 | |
532 | /* | |
533 | * Some laptops exhibit the strange behaviour of stepping toward | |
534 | * (rather than setting) the brightness except when changing to/from | |
535 | * brightness level 0. This behaviour is checked for here and worked | |
536 | * around in set_brightness. | |
537 | */ | |
538 | ||
ba05b237 | 539 | if (orig_level == 0) |
5dea7a20 | 540 | set_brightness(samsung, 1); |
ba05b237 | 541 | |
5dea7a20 | 542 | initial_level = read_brightness(samsung); |
ba05b237 | 543 | |
ac080523 JS |
544 | if (initial_level <= 2) |
545 | check_level = initial_level + 2; | |
546 | else | |
547 | check_level = initial_level - 2; | |
548 | ||
a6df4894 | 549 | samsung->has_stepping_quirk = false; |
5dea7a20 | 550 | set_brightness(samsung, check_level); |
ac080523 | 551 | |
5dea7a20 | 552 | if (read_brightness(samsung) != check_level) { |
a6df4894 | 553 | samsung->has_stepping_quirk = true; |
ac080523 JS |
554 | pr_info("enabled workaround for brightness stepping quirk\n"); |
555 | } | |
556 | ||
5dea7a20 | 557 | set_brightness(samsung, orig_level); |
ac080523 JS |
558 | } |
559 | ||
2d70b73a GKH |
560 | static int update_status(struct backlight_device *bd) |
561 | { | |
5dea7a20 | 562 | struct samsung_laptop *samsung = bl_get_data(bd); |
a6df4894 CC |
563 | const struct sabi_commands *commands = &samsung->config->commands; |
564 | ||
5dea7a20 | 565 | set_brightness(samsung, bd->props.brightness); |
2d70b73a GKH |
566 | |
567 | if (bd->props.power == FB_BLANK_UNBLANK) | |
7e960711 | 568 | sabi_set_commandb(samsung, commands->set_backlight, 1); |
2d70b73a | 569 | else |
7e960711 | 570 | sabi_set_commandb(samsung, commands->set_backlight, 0); |
5dea7a20 | 571 | |
2d70b73a GKH |
572 | return 0; |
573 | } | |
574 | ||
575 | static const struct backlight_ops backlight_ops = { | |
576 | .get_brightness = get_brightness, | |
577 | .update_status = update_status, | |
578 | }; | |
579 | ||
84d482f2 | 580 | static int seclinux_rfkill_set(void *data, bool blocked) |
2d70b73a | 581 | { |
20db88e3 CC |
582 | struct samsung_rfkill *srfkill = data; |
583 | struct samsung_laptop *samsung = srfkill->samsung; | |
a6df4894 CC |
584 | const struct sabi_commands *commands = &samsung->config->commands; |
585 | ||
84d482f2 CC |
586 | return sabi_set_commandb(samsung, commands->set_wireless_button, |
587 | !blocked); | |
588 | } | |
589 | ||
8314a1c8 | 590 | static const struct rfkill_ops seclinux_rfkill_ops = { |
84d482f2 CC |
591 | .set_block = seclinux_rfkill_set, |
592 | }; | |
593 | ||
594 | static int swsmi_wireless_status(struct samsung_laptop *samsung, | |
595 | struct sabi_data *data) | |
596 | { | |
597 | const struct sabi_commands *commands = &samsung->config->commands; | |
598 | ||
599 | return sabi_command(samsung, commands->get_wireless_status, | |
600 | NULL, data); | |
601 | } | |
602 | ||
603 | static int swsmi_rfkill_set(void *priv, bool blocked) | |
604 | { | |
605 | struct samsung_rfkill *srfkill = priv; | |
606 | struct samsung_laptop *samsung = srfkill->samsung; | |
607 | const struct sabi_commands *commands = &samsung->config->commands; | |
608 | struct sabi_data data; | |
609 | int ret, i; | |
610 | ||
611 | ret = swsmi_wireless_status(samsung, &data); | |
612 | if (ret) | |
613 | return ret; | |
614 | ||
615 | /* Don't set the state for non-present devices */ | |
616 | for (i = 0; i < 4; i++) | |
617 | if (data.data[i] == 0x02) | |
618 | data.data[1] = 0; | |
619 | ||
620 | if (srfkill->type == RFKILL_TYPE_WLAN) | |
621 | data.data[WL_STATUS_WLAN] = !blocked; | |
622 | else if (srfkill->type == RFKILL_TYPE_BLUETOOTH) | |
623 | data.data[WL_STATUS_BT] = !blocked; | |
624 | ||
625 | return sabi_command(samsung, commands->set_wireless_status, | |
626 | &data, &data); | |
627 | } | |
628 | ||
629 | static void swsmi_rfkill_query(struct rfkill *rfkill, void *priv) | |
630 | { | |
631 | struct samsung_rfkill *srfkill = priv; | |
632 | struct samsung_laptop *samsung = srfkill->samsung; | |
633 | struct sabi_data data; | |
634 | int ret; | |
635 | ||
636 | ret = swsmi_wireless_status(samsung, &data); | |
637 | if (ret) | |
638 | return ; | |
639 | ||
640 | if (srfkill->type == RFKILL_TYPE_WLAN) | |
641 | ret = data.data[WL_STATUS_WLAN]; | |
642 | else if (srfkill->type == RFKILL_TYPE_BLUETOOTH) | |
643 | ret = data.data[WL_STATUS_BT]; | |
2d70b73a | 644 | else |
84d482f2 | 645 | return ; |
2d70b73a | 646 | |
84d482f2 | 647 | rfkill_set_sw_state(rfkill, !ret); |
2d70b73a GKH |
648 | } |
649 | ||
8314a1c8 | 650 | static const struct rfkill_ops swsmi_rfkill_ops = { |
84d482f2 CC |
651 | .set_block = swsmi_rfkill_set, |
652 | .query = swsmi_rfkill_query, | |
2d70b73a GKH |
653 | }; |
654 | ||
2d70b73a GKH |
655 | static ssize_t get_performance_level(struct device *dev, |
656 | struct device_attribute *attr, char *buf) | |
657 | { | |
5dea7a20 | 658 | struct samsung_laptop *samsung = dev_get_drvdata(dev); |
a6df4894 | 659 | const struct sabi_config *config = samsung->config; |
5dea7a20 | 660 | const struct sabi_commands *commands = &config->commands; |
7e960711 | 661 | struct sabi_data sretval; |
2d70b73a GKH |
662 | int retval; |
663 | int i; | |
664 | ||
665 | /* Read the state */ | |
7e960711 CC |
666 | retval = sabi_command(samsung, commands->get_performance_level, |
667 | NULL, &sretval); | |
2d70b73a GKH |
668 | if (retval) |
669 | return retval; | |
670 | ||
671 | /* The logic is backwards, yeah, lots of fun... */ | |
a6df4894 | 672 | for (i = 0; config->performance_levels[i].name; ++i) { |
7e960711 | 673 | if (sretval.data[0] == config->performance_levels[i].value) |
a6df4894 | 674 | return sprintf(buf, "%s\n", config->performance_levels[i].name); |
2d70b73a GKH |
675 | } |
676 | return sprintf(buf, "%s\n", "unknown"); | |
677 | } | |
678 | ||
679 | static ssize_t set_performance_level(struct device *dev, | |
680 | struct device_attribute *attr, const char *buf, | |
681 | size_t count) | |
682 | { | |
5dea7a20 | 683 | struct samsung_laptop *samsung = dev_get_drvdata(dev); |
a6df4894 | 684 | const struct sabi_config *config = samsung->config; |
5dea7a20 CC |
685 | const struct sabi_commands *commands = &config->commands; |
686 | int i; | |
a6df4894 | 687 | |
5dea7a20 CC |
688 | if (count < 1) |
689 | return count; | |
690 | ||
691 | for (i = 0; config->performance_levels[i].name; ++i) { | |
692 | const struct sabi_performance_level *level = | |
693 | &config->performance_levels[i]; | |
694 | if (!strncasecmp(level->name, buf, strlen(level->name))) { | |
7e960711 CC |
695 | sabi_set_commandb(samsung, |
696 | commands->set_performance_level, | |
697 | level->value); | |
5dea7a20 | 698 | break; |
2d70b73a | 699 | } |
2d70b73a | 700 | } |
5dea7a20 CC |
701 | |
702 | if (!config->performance_levels[i].name) | |
703 | return -EINVAL; | |
704 | ||
2d70b73a GKH |
705 | return count; |
706 | } | |
5dea7a20 | 707 | |
2d70b73a GKH |
708 | static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO, |
709 | get_performance_level, set_performance_level); | |
710 | ||
cb5b5c91 CC |
711 | static int read_battery_life_extender(struct samsung_laptop *samsung) |
712 | { | |
713 | const struct sabi_commands *commands = &samsung->config->commands; | |
714 | struct sabi_data data; | |
715 | int retval; | |
716 | ||
717 | if (commands->get_battery_life_extender == 0xFFFF) | |
718 | return -ENODEV; | |
719 | ||
720 | memset(&data, 0, sizeof(data)); | |
721 | data.data[0] = 0x80; | |
722 | retval = sabi_command(samsung, commands->get_battery_life_extender, | |
723 | &data, &data); | |
724 | ||
725 | if (retval) | |
726 | return retval; | |
727 | ||
728 | if (data.data[0] != 0 && data.data[0] != 1) | |
729 | return -ENODEV; | |
730 | ||
731 | return data.data[0]; | |
732 | } | |
733 | ||
734 | static int write_battery_life_extender(struct samsung_laptop *samsung, | |
735 | int enabled) | |
736 | { | |
737 | const struct sabi_commands *commands = &samsung->config->commands; | |
738 | struct sabi_data data; | |
739 | ||
740 | memset(&data, 0, sizeof(data)); | |
741 | data.data[0] = 0x80 | enabled; | |
742 | return sabi_command(samsung, commands->set_battery_life_extender, | |
743 | &data, NULL); | |
744 | } | |
745 | ||
746 | static ssize_t get_battery_life_extender(struct device *dev, | |
747 | struct device_attribute *attr, | |
748 | char *buf) | |
749 | { | |
750 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
751 | int ret; | |
752 | ||
753 | ret = read_battery_life_extender(samsung); | |
754 | if (ret < 0) | |
755 | return ret; | |
756 | ||
757 | return sprintf(buf, "%d\n", ret); | |
758 | } | |
759 | ||
760 | static ssize_t set_battery_life_extender(struct device *dev, | |
761 | struct device_attribute *attr, | |
762 | const char *buf, size_t count) | |
763 | { | |
764 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
765 | int ret, value; | |
766 | ||
802cf2e1 | 767 | if (!count || kstrtoint(buf, 0, &value) != 0) |
cb5b5c91 CC |
768 | return -EINVAL; |
769 | ||
770 | ret = write_battery_life_extender(samsung, !!value); | |
771 | if (ret < 0) | |
772 | return ret; | |
773 | ||
774 | return count; | |
775 | } | |
776 | ||
777 | static DEVICE_ATTR(battery_life_extender, S_IWUSR | S_IRUGO, | |
778 | get_battery_life_extender, set_battery_life_extender); | |
779 | ||
3a75d378 CC |
780 | static int read_usb_charge(struct samsung_laptop *samsung) |
781 | { | |
782 | const struct sabi_commands *commands = &samsung->config->commands; | |
783 | struct sabi_data data; | |
784 | int retval; | |
785 | ||
786 | if (commands->get_usb_charge == 0xFFFF) | |
787 | return -ENODEV; | |
788 | ||
789 | memset(&data, 0, sizeof(data)); | |
790 | data.data[0] = 0x80; | |
791 | retval = sabi_command(samsung, commands->get_usb_charge, | |
792 | &data, &data); | |
793 | ||
794 | if (retval) | |
795 | return retval; | |
796 | ||
797 | if (data.data[0] != 0 && data.data[0] != 1) | |
798 | return -ENODEV; | |
799 | ||
800 | return data.data[0]; | |
801 | } | |
802 | ||
803 | static int write_usb_charge(struct samsung_laptop *samsung, | |
804 | int enabled) | |
805 | { | |
806 | const struct sabi_commands *commands = &samsung->config->commands; | |
807 | struct sabi_data data; | |
808 | ||
809 | memset(&data, 0, sizeof(data)); | |
810 | data.data[0] = 0x80 | enabled; | |
811 | return sabi_command(samsung, commands->set_usb_charge, | |
812 | &data, NULL); | |
813 | } | |
814 | ||
815 | static ssize_t get_usb_charge(struct device *dev, | |
816 | struct device_attribute *attr, | |
817 | char *buf) | |
818 | { | |
819 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
820 | int ret; | |
821 | ||
822 | ret = read_usb_charge(samsung); | |
823 | if (ret < 0) | |
824 | return ret; | |
825 | ||
826 | return sprintf(buf, "%d\n", ret); | |
827 | } | |
828 | ||
829 | static ssize_t set_usb_charge(struct device *dev, | |
830 | struct device_attribute *attr, | |
831 | const char *buf, size_t count) | |
832 | { | |
833 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
834 | int ret, value; | |
835 | ||
802cf2e1 | 836 | if (!count || kstrtoint(buf, 0, &value) != 0) |
3a75d378 CC |
837 | return -EINVAL; |
838 | ||
839 | ret = write_usb_charge(samsung, !!value); | |
840 | if (ret < 0) | |
841 | return ret; | |
842 | ||
843 | return count; | |
844 | } | |
845 | ||
846 | static DEVICE_ATTR(usb_charge, S_IWUSR | S_IRUGO, | |
847 | get_usb_charge, set_usb_charge); | |
848 | ||
b0dcaf4f JK |
849 | static int read_lid_handling(struct samsung_laptop *samsung) |
850 | { | |
851 | const struct sabi_commands *commands = &samsung->config->commands; | |
852 | struct sabi_data data; | |
853 | int retval; | |
854 | ||
855 | if (commands->get_lid_handling == 0xFFFF) | |
856 | return -ENODEV; | |
857 | ||
858 | memset(&data, 0, sizeof(data)); | |
859 | retval = sabi_command(samsung, commands->get_lid_handling, | |
860 | &data, &data); | |
861 | ||
862 | if (retval) | |
863 | return retval; | |
864 | ||
865 | return data.data[0] & 0x1; | |
866 | } | |
867 | ||
868 | static int write_lid_handling(struct samsung_laptop *samsung, | |
869 | int enabled) | |
870 | { | |
871 | const struct sabi_commands *commands = &samsung->config->commands; | |
872 | struct sabi_data data; | |
873 | ||
874 | memset(&data, 0, sizeof(data)); | |
875 | data.data[0] = 0x80 | enabled; | |
876 | return sabi_command(samsung, commands->set_lid_handling, | |
877 | &data, NULL); | |
878 | } | |
879 | ||
880 | static ssize_t get_lid_handling(struct device *dev, | |
881 | struct device_attribute *attr, | |
882 | char *buf) | |
883 | { | |
884 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
885 | int ret; | |
886 | ||
887 | ret = read_lid_handling(samsung); | |
888 | if (ret < 0) | |
889 | return ret; | |
890 | ||
891 | return sprintf(buf, "%d\n", ret); | |
892 | } | |
893 | ||
894 | static ssize_t set_lid_handling(struct device *dev, | |
895 | struct device_attribute *attr, | |
896 | const char *buf, size_t count) | |
897 | { | |
898 | struct samsung_laptop *samsung = dev_get_drvdata(dev); | |
899 | int ret, value; | |
900 | ||
901 | if (!count || kstrtoint(buf, 0, &value) != 0) | |
902 | return -EINVAL; | |
903 | ||
904 | ret = write_lid_handling(samsung, !!value); | |
905 | if (ret < 0) | |
906 | return ret; | |
907 | ||
908 | return count; | |
909 | } | |
910 | ||
911 | static DEVICE_ATTR(lid_handling, S_IWUSR | S_IRUGO, | |
912 | get_lid_handling, set_lid_handling); | |
913 | ||
a66c1662 CC |
914 | static struct attribute *platform_attributes[] = { |
915 | &dev_attr_performance_level.attr, | |
cb5b5c91 | 916 | &dev_attr_battery_life_extender.attr, |
3a75d378 | 917 | &dev_attr_usb_charge.attr, |
b0dcaf4f | 918 | &dev_attr_lid_handling.attr, |
a66c1662 CC |
919 | NULL |
920 | }; | |
2d70b73a | 921 | |
5dea7a20 CC |
922 | static int find_signature(void __iomem *memcheck, const char *testStr) |
923 | { | |
924 | int i = 0; | |
925 | int loca; | |
926 | ||
927 | for (loca = 0; loca < 0xffff; loca++) { | |
928 | char temp = readb(memcheck + loca); | |
929 | ||
930 | if (temp == testStr[i]) { | |
931 | if (i == strlen(testStr)-1) | |
932 | break; | |
933 | ++i; | |
934 | } else { | |
935 | i = 0; | |
936 | } | |
937 | } | |
938 | return loca; | |
939 | } | |
940 | ||
941 | static void samsung_rfkill_exit(struct samsung_laptop *samsung) | |
942 | { | |
84d482f2 CC |
943 | if (samsung->wlan.rfkill) { |
944 | rfkill_unregister(samsung->wlan.rfkill); | |
945 | rfkill_destroy(samsung->wlan.rfkill); | |
946 | samsung->wlan.rfkill = NULL; | |
947 | } | |
948 | if (samsung->bluetooth.rfkill) { | |
949 | rfkill_unregister(samsung->bluetooth.rfkill); | |
950 | rfkill_destroy(samsung->bluetooth.rfkill); | |
951 | samsung->bluetooth.rfkill = NULL; | |
5dea7a20 CC |
952 | } |
953 | } | |
954 | ||
84d482f2 CC |
955 | static int samsung_new_rfkill(struct samsung_laptop *samsung, |
956 | struct samsung_rfkill *arfkill, | |
957 | const char *name, enum rfkill_type type, | |
958 | const struct rfkill_ops *ops, | |
959 | int blocked) | |
5dea7a20 | 960 | { |
84d482f2 CC |
961 | struct rfkill **rfkill = &arfkill->rfkill; |
962 | int ret; | |
5dea7a20 | 963 | |
84d482f2 CC |
964 | arfkill->type = type; |
965 | arfkill->samsung = samsung; | |
966 | ||
967 | *rfkill = rfkill_alloc(name, &samsung->platform_device->dev, | |
968 | type, ops, arfkill); | |
969 | ||
970 | if (!*rfkill) | |
971 | return -EINVAL; | |
972 | ||
973 | if (blocked != -1) | |
974 | rfkill_init_sw_state(*rfkill, blocked); | |
975 | ||
976 | ret = rfkill_register(*rfkill); | |
977 | if (ret) { | |
978 | rfkill_destroy(*rfkill); | |
979 | *rfkill = NULL; | |
980 | return ret; | |
5dea7a20 | 981 | } |
84d482f2 CC |
982 | return 0; |
983 | } | |
5dea7a20 | 984 | |
84d482f2 CC |
985 | static int __init samsung_rfkill_init_seclinux(struct samsung_laptop *samsung) |
986 | { | |
987 | return samsung_new_rfkill(samsung, &samsung->wlan, "samsung-wlan", | |
988 | RFKILL_TYPE_WLAN, &seclinux_rfkill_ops, -1); | |
989 | } | |
990 | ||
991 | static int __init samsung_rfkill_init_swsmi(struct samsung_laptop *samsung) | |
992 | { | |
993 | struct sabi_data data; | |
994 | int ret; | |
995 | ||
996 | ret = swsmi_wireless_status(samsung, &data); | |
20db88e3 CC |
997 | if (ret) { |
998 | /* Some swsmi laptops use the old seclinux way to control | |
999 | * wireless devices */ | |
1000 | if (ret == -EINVAL) | |
1001 | ret = samsung_rfkill_init_seclinux(samsung); | |
84d482f2 | 1002 | return ret; |
20db88e3 | 1003 | } |
84d482f2 CC |
1004 | |
1005 | /* 0x02 seems to mean that the device is no present/available */ | |
1006 | ||
1007 | if (data.data[WL_STATUS_WLAN] != 0x02) | |
1008 | ret = samsung_new_rfkill(samsung, &samsung->wlan, | |
1009 | "samsung-wlan", | |
1010 | RFKILL_TYPE_WLAN, | |
1011 | &swsmi_rfkill_ops, | |
1012 | !data.data[WL_STATUS_WLAN]); | |
1013 | if (ret) | |
1014 | goto exit; | |
1015 | ||
1016 | if (data.data[WL_STATUS_BT] != 0x02) | |
1017 | ret = samsung_new_rfkill(samsung, &samsung->bluetooth, | |
1018 | "samsung-bluetooth", | |
1019 | RFKILL_TYPE_BLUETOOTH, | |
1020 | &swsmi_rfkill_ops, | |
1021 | !data.data[WL_STATUS_BT]); | |
1022 | if (ret) | |
1023 | goto exit; | |
1024 | ||
1025 | exit: | |
1026 | if (ret) | |
1027 | samsung_rfkill_exit(samsung); | |
1028 | ||
1029 | return ret; | |
1030 | } | |
1031 | ||
1032 | static int __init samsung_rfkill_init(struct samsung_laptop *samsung) | |
1033 | { | |
1034 | if (samsung->config->sabi_version == 2) | |
1035 | return samsung_rfkill_init_seclinux(samsung); | |
1036 | if (samsung->config->sabi_version == 3) | |
1037 | return samsung_rfkill_init_swsmi(samsung); | |
5dea7a20 CC |
1038 | return 0; |
1039 | } | |
1040 | ||
b0dcaf4f JK |
1041 | static void samsung_lid_handling_exit(struct samsung_laptop *samsung) |
1042 | { | |
1043 | if (samsung->quirks->lid_handling) | |
1044 | write_lid_handling(samsung, 0); | |
1045 | } | |
1046 | ||
1047 | static int __init samsung_lid_handling_init(struct samsung_laptop *samsung) | |
1048 | { | |
1049 | int retval = 0; | |
1050 | ||
1051 | if (samsung->quirks->lid_handling) | |
1052 | retval = write_lid_handling(samsung, 1); | |
1053 | ||
1054 | return retval; | |
1055 | } | |
1056 | ||
f674ebf1 CC |
1057 | static int kbd_backlight_enable(struct samsung_laptop *samsung) |
1058 | { | |
1059 | const struct sabi_commands *commands = &samsung->config->commands; | |
1060 | struct sabi_data data; | |
1061 | int retval; | |
1062 | ||
1063 | if (commands->kbd_backlight == 0xFFFF) | |
1064 | return -ENODEV; | |
1065 | ||
1066 | memset(&data, 0, sizeof(data)); | |
1067 | data.d0 = 0xaabb; | |
1068 | retval = sabi_command(samsung, commands->kbd_backlight, | |
1069 | &data, &data); | |
1070 | ||
1071 | if (retval) | |
1072 | return retval; | |
1073 | ||
1074 | if (data.d0 != 0xccdd) | |
1075 | return -ENODEV; | |
1076 | return 0; | |
1077 | } | |
1078 | ||
1079 | static int kbd_backlight_read(struct samsung_laptop *samsung) | |
1080 | { | |
1081 | const struct sabi_commands *commands = &samsung->config->commands; | |
1082 | struct sabi_data data; | |
1083 | int retval; | |
1084 | ||
1085 | memset(&data, 0, sizeof(data)); | |
1086 | data.data[0] = 0x81; | |
1087 | retval = sabi_command(samsung, commands->kbd_backlight, | |
1088 | &data, &data); | |
1089 | ||
1090 | if (retval) | |
1091 | return retval; | |
1092 | ||
1093 | return data.data[0]; | |
1094 | } | |
1095 | ||
1096 | static int kbd_backlight_write(struct samsung_laptop *samsung, int brightness) | |
1097 | { | |
1098 | const struct sabi_commands *commands = &samsung->config->commands; | |
1099 | struct sabi_data data; | |
1100 | ||
1101 | memset(&data, 0, sizeof(data)); | |
1102 | data.d0 = 0x82 | ((brightness & 0xFF) << 8); | |
1103 | return sabi_command(samsung, commands->kbd_backlight, | |
1104 | &data, NULL); | |
1105 | } | |
1106 | ||
1107 | static void kbd_led_update(struct work_struct *work) | |
1108 | { | |
1109 | struct samsung_laptop *samsung; | |
1110 | ||
1111 | samsung = container_of(work, struct samsung_laptop, kbd_led_work); | |
1112 | kbd_backlight_write(samsung, samsung->kbd_led_wk); | |
1113 | } | |
1114 | ||
1115 | static void kbd_led_set(struct led_classdev *led_cdev, | |
1116 | enum led_brightness value) | |
1117 | { | |
1118 | struct samsung_laptop *samsung; | |
1119 | ||
1120 | samsung = container_of(led_cdev, struct samsung_laptop, kbd_led); | |
1121 | ||
1122 | if (value > samsung->kbd_led.max_brightness) | |
1123 | value = samsung->kbd_led.max_brightness; | |
1124 | else if (value < 0) | |
1125 | value = 0; | |
1126 | ||
1127 | samsung->kbd_led_wk = value; | |
1128 | queue_work(samsung->led_workqueue, &samsung->kbd_led_work); | |
1129 | } | |
1130 | ||
1131 | static enum led_brightness kbd_led_get(struct led_classdev *led_cdev) | |
1132 | { | |
1133 | struct samsung_laptop *samsung; | |
1134 | ||
1135 | samsung = container_of(led_cdev, struct samsung_laptop, kbd_led); | |
1136 | return kbd_backlight_read(samsung); | |
1137 | } | |
1138 | ||
1139 | static void samsung_leds_exit(struct samsung_laptop *samsung) | |
1140 | { | |
1141 | if (!IS_ERR_OR_NULL(samsung->kbd_led.dev)) | |
1142 | led_classdev_unregister(&samsung->kbd_led); | |
1143 | if (samsung->led_workqueue) | |
1144 | destroy_workqueue(samsung->led_workqueue); | |
1145 | } | |
1146 | ||
1147 | static int __init samsung_leds_init(struct samsung_laptop *samsung) | |
1148 | { | |
1149 | int ret = 0; | |
1150 | ||
1151 | samsung->led_workqueue = create_singlethread_workqueue("led_workqueue"); | |
1152 | if (!samsung->led_workqueue) | |
1153 | return -ENOMEM; | |
1154 | ||
1155 | if (kbd_backlight_enable(samsung) >= 0) { | |
1156 | INIT_WORK(&samsung->kbd_led_work, kbd_led_update); | |
1157 | ||
1158 | samsung->kbd_led.name = "samsung::kbd_backlight"; | |
1159 | samsung->kbd_led.brightness_set = kbd_led_set; | |
1160 | samsung->kbd_led.brightness_get = kbd_led_get; | |
1161 | samsung->kbd_led.max_brightness = 8; | |
0ca849ea ST |
1162 | if (samsung->quirks->four_kbd_backlight_levels) |
1163 | samsung->kbd_led.max_brightness = 4; | |
f674ebf1 CC |
1164 | |
1165 | ret = led_classdev_register(&samsung->platform_device->dev, | |
1166 | &samsung->kbd_led); | |
1167 | } | |
1168 | ||
1169 | if (ret) | |
1170 | samsung_leds_exit(samsung); | |
1171 | ||
1172 | return ret; | |
1173 | } | |
1174 | ||
5dea7a20 CC |
1175 | static void samsung_backlight_exit(struct samsung_laptop *samsung) |
1176 | { | |
1177 | if (samsung->backlight_device) { | |
1178 | backlight_device_unregister(samsung->backlight_device); | |
1179 | samsung->backlight_device = NULL; | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | static int __init samsung_backlight_init(struct samsung_laptop *samsung) | |
1184 | { | |
1185 | struct backlight_device *bd; | |
1186 | struct backlight_properties props; | |
1187 | ||
f34cd9ca CC |
1188 | if (!samsung->handle_backlight) |
1189 | return 0; | |
1190 | ||
5dea7a20 CC |
1191 | memset(&props, 0, sizeof(struct backlight_properties)); |
1192 | props.type = BACKLIGHT_PLATFORM; | |
1193 | props.max_brightness = samsung->config->max_brightness - | |
1194 | samsung->config->min_brightness; | |
1195 | ||
1196 | bd = backlight_device_register("samsung", | |
1197 | &samsung->platform_device->dev, | |
1198 | samsung, &backlight_ops, | |
1199 | &props); | |
1200 | if (IS_ERR(bd)) | |
1201 | return PTR_ERR(bd); | |
1202 | ||
1203 | samsung->backlight_device = bd; | |
1204 | samsung->backlight_device->props.brightness = read_brightness(samsung); | |
1205 | samsung->backlight_device->props.power = FB_BLANK_UNBLANK; | |
1206 | backlight_update_status(samsung->backlight_device); | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
bde9e509 | 1211 | static umode_t samsung_sysfs_is_visible(struct kobject *kobj, |
b0dcaf4f | 1212 | struct attribute *attr, int idx) |
a66c1662 CC |
1213 | { |
1214 | struct device *dev = container_of(kobj, struct device, kobj); | |
d605ca29 | 1215 | struct samsung_laptop *samsung = dev_get_drvdata(dev); |
a66c1662 CC |
1216 | bool ok = true; |
1217 | ||
1218 | if (attr == &dev_attr_performance_level.attr) | |
1219 | ok = !!samsung->config->performance_levels[0].name; | |
cb5b5c91 CC |
1220 | if (attr == &dev_attr_battery_life_extender.attr) |
1221 | ok = !!(read_battery_life_extender(samsung) >= 0); | |
3a75d378 CC |
1222 | if (attr == &dev_attr_usb_charge.attr) |
1223 | ok = !!(read_usb_charge(samsung) >= 0); | |
b0dcaf4f JK |
1224 | if (attr == &dev_attr_lid_handling.attr) |
1225 | ok = !!(read_lid_handling(samsung) >= 0); | |
a66c1662 CC |
1226 | |
1227 | return ok ? attr->mode : 0; | |
1228 | } | |
1229 | ||
8546268e | 1230 | static const struct attribute_group platform_attribute_group = { |
a66c1662 CC |
1231 | .is_visible = samsung_sysfs_is_visible, |
1232 | .attrs = platform_attributes | |
1233 | }; | |
1234 | ||
5dea7a20 CC |
1235 | static void samsung_sysfs_exit(struct samsung_laptop *samsung) |
1236 | { | |
a66c1662 CC |
1237 | struct platform_device *device = samsung->platform_device; |
1238 | ||
1239 | sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); | |
5dea7a20 CC |
1240 | } |
1241 | ||
1242 | static int __init samsung_sysfs_init(struct samsung_laptop *samsung) | |
1243 | { | |
a66c1662 CC |
1244 | struct platform_device *device = samsung->platform_device; |
1245 | ||
1246 | return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); | |
1247 | ||
5dea7a20 CC |
1248 | } |
1249 | ||
9a7c551b | 1250 | static int samsung_laptop_call_show(struct seq_file *m, void *data) |
5b80fc40 CC |
1251 | { |
1252 | struct samsung_laptop *samsung = m->private; | |
1253 | struct sabi_data *sdata = &samsung->debug.data; | |
1254 | int ret; | |
1255 | ||
1256 | seq_printf(m, "SABI 0x%04x {0x%08x, 0x%08x, 0x%04x, 0x%02x}\n", | |
1257 | samsung->debug.command, | |
1258 | sdata->d0, sdata->d1, sdata->d2, sdata->d3); | |
1259 | ||
1260 | ret = sabi_command(samsung, samsung->debug.command, sdata, sdata); | |
1261 | ||
1262 | if (ret) { | |
1263 | seq_printf(m, "SABI command 0x%04x failed\n", | |
1264 | samsung->debug.command); | |
1265 | return ret; | |
1266 | } | |
1267 | ||
1268 | seq_printf(m, "SABI {0x%08x, 0x%08x, 0x%04x, 0x%02x}\n", | |
1269 | sdata->d0, sdata->d1, sdata->d2, sdata->d3); | |
1270 | return 0; | |
1271 | } | |
9a7c551b | 1272 | DEFINE_SHOW_ATTRIBUTE(samsung_laptop_call); |
5b80fc40 CC |
1273 | |
1274 | static void samsung_debugfs_exit(struct samsung_laptop *samsung) | |
1275 | { | |
1276 | debugfs_remove_recursive(samsung->debug.root); | |
1277 | } | |
1278 | ||
1279 | static int samsung_debugfs_init(struct samsung_laptop *samsung) | |
1280 | { | |
1281 | struct dentry *dent; | |
1282 | ||
1283 | samsung->debug.root = debugfs_create_dir("samsung-laptop", NULL); | |
1284 | if (!samsung->debug.root) { | |
1285 | pr_err("failed to create debugfs directory"); | |
1286 | goto error_debugfs; | |
1287 | } | |
1288 | ||
1289 | samsung->debug.f0000_wrapper.data = samsung->f0000_segment; | |
1290 | samsung->debug.f0000_wrapper.size = 0xffff; | |
1291 | ||
1292 | samsung->debug.data_wrapper.data = &samsung->debug.data; | |
1293 | samsung->debug.data_wrapper.size = sizeof(samsung->debug.data); | |
1294 | ||
6f6ae06e CC |
1295 | samsung->debug.sdiag_wrapper.data = samsung->sdiag; |
1296 | samsung->debug.sdiag_wrapper.size = strlen(samsung->sdiag); | |
1297 | ||
5b80fc40 CC |
1298 | dent = debugfs_create_u16("command", S_IRUGO | S_IWUSR, |
1299 | samsung->debug.root, &samsung->debug.command); | |
1300 | if (!dent) | |
1301 | goto error_debugfs; | |
1302 | ||
1303 | dent = debugfs_create_u32("d0", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1304 | &samsung->debug.data.d0); | |
1305 | if (!dent) | |
1306 | goto error_debugfs; | |
1307 | ||
1308 | dent = debugfs_create_u32("d1", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1309 | &samsung->debug.data.d1); | |
1310 | if (!dent) | |
1311 | goto error_debugfs; | |
1312 | ||
1313 | dent = debugfs_create_u16("d2", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1314 | &samsung->debug.data.d2); | |
1315 | if (!dent) | |
1316 | goto error_debugfs; | |
1317 | ||
1318 | dent = debugfs_create_u8("d3", S_IRUGO | S_IWUSR, samsung->debug.root, | |
1319 | &samsung->debug.data.d3); | |
1320 | if (!dent) | |
1321 | goto error_debugfs; | |
1322 | ||
1323 | dent = debugfs_create_blob("data", S_IRUGO | S_IWUSR, | |
1324 | samsung->debug.root, | |
1325 | &samsung->debug.data_wrapper); | |
1326 | if (!dent) | |
1327 | goto error_debugfs; | |
1328 | ||
1329 | dent = debugfs_create_blob("f0000_segment", S_IRUSR | S_IWUSR, | |
1330 | samsung->debug.root, | |
1331 | &samsung->debug.f0000_wrapper); | |
1332 | if (!dent) | |
1333 | goto error_debugfs; | |
1334 | ||
1335 | dent = debugfs_create_file("call", S_IFREG | S_IRUGO, | |
1336 | samsung->debug.root, samsung, | |
9a7c551b | 1337 | &samsung_laptop_call_fops); |
5b80fc40 CC |
1338 | if (!dent) |
1339 | goto error_debugfs; | |
1340 | ||
6f6ae06e CC |
1341 | dent = debugfs_create_blob("sdiag", S_IRUGO | S_IWUSR, |
1342 | samsung->debug.root, | |
1343 | &samsung->debug.sdiag_wrapper); | |
1344 | if (!dent) | |
1345 | goto error_debugfs; | |
1346 | ||
5b80fc40 CC |
1347 | return 0; |
1348 | ||
1349 | error_debugfs: | |
1350 | samsung_debugfs_exit(samsung); | |
1351 | return -ENOMEM; | |
1352 | } | |
1353 | ||
5dea7a20 CC |
1354 | static void samsung_sabi_exit(struct samsung_laptop *samsung) |
1355 | { | |
1356 | const struct sabi_config *config = samsung->config; | |
1357 | ||
1358 | /* Turn off "Linux" mode in the BIOS */ | |
1359 | if (config && config->commands.set_linux != 0xff) | |
7e960711 | 1360 | sabi_set_commandb(samsung, config->commands.set_linux, 0x80); |
5dea7a20 CC |
1361 | |
1362 | if (samsung->sabi_iface) { | |
1363 | iounmap(samsung->sabi_iface); | |
1364 | samsung->sabi_iface = NULL; | |
1365 | } | |
1366 | if (samsung->f0000_segment) { | |
1367 | iounmap(samsung->f0000_segment); | |
1368 | samsung->f0000_segment = NULL; | |
1369 | } | |
1370 | ||
1371 | samsung->config = NULL; | |
1372 | } | |
1373 | ||
49dd7730 CC |
1374 | static __init void samsung_sabi_infos(struct samsung_laptop *samsung, int loca, |
1375 | unsigned int ifaceP) | |
5dea7a20 CC |
1376 | { |
1377 | const struct sabi_config *config = samsung->config; | |
1378 | ||
1379 | printk(KERN_DEBUG "This computer supports SABI==%x\n", | |
1380 | loca + 0xf0000 - 6); | |
49dd7730 | 1381 | |
5dea7a20 CC |
1382 | printk(KERN_DEBUG "SABI header:\n"); |
1383 | printk(KERN_DEBUG " SMI Port Number = 0x%04x\n", | |
1384 | readw(samsung->sabi + config->header_offsets.port)); | |
1385 | printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n", | |
1386 | readb(samsung->sabi + config->header_offsets.iface_func)); | |
1387 | printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n", | |
1388 | readb(samsung->sabi + config->header_offsets.en_mem)); | |
1389 | printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n", | |
1390 | readb(samsung->sabi + config->header_offsets.re_mem)); | |
1391 | printk(KERN_DEBUG " SABI data offset = 0x%04x\n", | |
1392 | readw(samsung->sabi + config->header_offsets.data_offset)); | |
1393 | printk(KERN_DEBUG " SABI data segment = 0x%04x\n", | |
1394 | readw(samsung->sabi + config->header_offsets.data_segment)); | |
5dea7a20 | 1395 | |
49dd7730 | 1396 | printk(KERN_DEBUG " SABI pointer = 0x%08x\n", ifaceP); |
5dea7a20 CC |
1397 | } |
1398 | ||
6f6ae06e CC |
1399 | static void __init samsung_sabi_diag(struct samsung_laptop *samsung) |
1400 | { | |
1401 | int loca = find_signature(samsung->f0000_segment, "SDiaG@"); | |
1402 | int i; | |
1403 | ||
1404 | if (loca == 0xffff) | |
1405 | return ; | |
1406 | ||
1407 | /* Example: | |
1408 | * Ident: @SDiaG@686XX-N90X3A/966-SEC-07HL-S90X3A | |
1409 | * | |
1410 | * Product name: 90X3A | |
1411 | * BIOS Version: 07HL | |
1412 | */ | |
1413 | loca += 1; | |
1414 | for (i = 0; loca < 0xffff && i < sizeof(samsung->sdiag) - 1; loca++) { | |
1415 | char temp = readb(samsung->f0000_segment + loca); | |
1416 | ||
1417 | if (isalnum(temp) || temp == '/' || temp == '-') | |
1418 | samsung->sdiag[i++] = temp; | |
1419 | else | |
1420 | break ; | |
1421 | } | |
1422 | ||
1423 | if (debug && samsung->sdiag[0]) | |
1424 | pr_info("sdiag: %s", samsung->sdiag); | |
1425 | } | |
1426 | ||
5dea7a20 CC |
1427 | static int __init samsung_sabi_init(struct samsung_laptop *samsung) |
1428 | { | |
1429 | const struct sabi_config *config = NULL; | |
1430 | const struct sabi_commands *commands; | |
1431 | unsigned int ifaceP; | |
0d2c9535 | 1432 | int loca = 0xffff; |
5dea7a20 CC |
1433 | int ret = 0; |
1434 | int i; | |
5dea7a20 CC |
1435 | |
1436 | samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff); | |
1437 | if (!samsung->f0000_segment) { | |
3be324a9 CC |
1438 | if (debug || force) |
1439 | pr_err("Can't map the segment at 0xf0000\n"); | |
5dea7a20 CC |
1440 | ret = -EINVAL; |
1441 | goto exit; | |
1442 | } | |
1443 | ||
6f6ae06e CC |
1444 | samsung_sabi_diag(samsung); |
1445 | ||
5dea7a20 | 1446 | /* Try to find one of the signatures in memory to find the header */ |
4e7f09ad | 1447 | for (i = 0; sabi_configs[i].test_string != NULL; ++i) { |
5dea7a20 CC |
1448 | samsung->config = &sabi_configs[i]; |
1449 | loca = find_signature(samsung->f0000_segment, | |
1450 | samsung->config->test_string); | |
1451 | if (loca != 0xffff) | |
1452 | break; | |
1453 | } | |
1454 | ||
1455 | if (loca == 0xffff) { | |
3be324a9 CC |
1456 | if (debug || force) |
1457 | pr_err("This computer does not support SABI\n"); | |
5dea7a20 CC |
1458 | ret = -ENODEV; |
1459 | goto exit; | |
1460 | } | |
1461 | ||
1462 | config = samsung->config; | |
1463 | commands = &config->commands; | |
1464 | ||
1465 | /* point to the SMI port Number */ | |
1466 | loca += 1; | |
1467 | samsung->sabi = (samsung->f0000_segment + loca); | |
1468 | ||
5dea7a20 CC |
1469 | /* Get a pointer to the SABI Interface */ |
1470 | ifaceP = (readw(samsung->sabi + config->header_offsets.data_segment) & 0x0ffff) << 4; | |
1471 | ifaceP += readw(samsung->sabi + config->header_offsets.data_offset) & 0x0ffff; | |
49dd7730 CC |
1472 | |
1473 | if (debug) | |
1474 | samsung_sabi_infos(samsung, loca, ifaceP); | |
1475 | ||
5dea7a20 CC |
1476 | samsung->sabi_iface = ioremap_nocache(ifaceP, 16); |
1477 | if (!samsung->sabi_iface) { | |
1478 | pr_err("Can't remap %x\n", ifaceP); | |
1479 | ret = -EINVAL; | |
1480 | goto exit; | |
1481 | } | |
1482 | ||
5dea7a20 CC |
1483 | /* Turn on "Linux" mode in the BIOS */ |
1484 | if (commands->set_linux != 0xff) { | |
7e960711 CC |
1485 | int retval = sabi_set_commandb(samsung, |
1486 | commands->set_linux, 0x81); | |
5dea7a20 CC |
1487 | if (retval) { |
1488 | pr_warn("Linux mode was not set!\n"); | |
1489 | ret = -ENODEV; | |
1490 | goto exit; | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | /* Check for stepping quirk */ | |
f34cd9ca CC |
1495 | if (samsung->handle_backlight) |
1496 | check_for_stepping_quirk(samsung); | |
5dea7a20 | 1497 | |
2e777187 CC |
1498 | pr_info("detected SABI interface: %s\n", |
1499 | samsung->config->test_string); | |
1500 | ||
5dea7a20 CC |
1501 | exit: |
1502 | if (ret) | |
1503 | samsung_sabi_exit(samsung); | |
1504 | ||
1505 | return ret; | |
1506 | } | |
1507 | ||
1508 | static void samsung_platform_exit(struct samsung_laptop *samsung) | |
1509 | { | |
1510 | if (samsung->platform_device) { | |
1511 | platform_device_unregister(samsung->platform_device); | |
1512 | samsung->platform_device = NULL; | |
1513 | } | |
1514 | } | |
1515 | ||
0ca849ea ST |
1516 | static int samsung_pm_notification(struct notifier_block *nb, |
1517 | unsigned long val, void *ptr) | |
1518 | { | |
1519 | struct samsung_laptop *samsung; | |
1520 | ||
1521 | samsung = container_of(nb, struct samsung_laptop, pm_nb); | |
1522 | if (val == PM_POST_HIBERNATION && | |
1523 | samsung->quirks->enable_kbd_backlight) | |
1524 | kbd_backlight_enable(samsung); | |
1525 | ||
b0dcaf4f JK |
1526 | if (val == PM_POST_HIBERNATION && samsung->quirks->lid_handling) |
1527 | write_lid_handling(samsung, 1); | |
1528 | ||
0ca849ea ST |
1529 | return 0; |
1530 | } | |
1531 | ||
5dea7a20 CC |
1532 | static int __init samsung_platform_init(struct samsung_laptop *samsung) |
1533 | { | |
1534 | struct platform_device *pdev; | |
1535 | ||
1536 | pdev = platform_device_register_simple("samsung", -1, NULL, 0); | |
1537 | if (IS_ERR(pdev)) | |
1538 | return PTR_ERR(pdev); | |
1539 | ||
1540 | samsung->platform_device = pdev; | |
1541 | platform_set_drvdata(samsung->platform_device, samsung); | |
1542 | return 0; | |
1543 | } | |
1544 | ||
a979e2e2 CC |
1545 | static struct samsung_quirks *quirks; |
1546 | ||
1547 | static int __init samsung_dmi_matched(const struct dmi_system_id *d) | |
1548 | { | |
1549 | quirks = d->driver_data; | |
1550 | return 0; | |
1551 | } | |
1552 | ||
6faadbbb | 1553 | static const struct dmi_system_id samsung_dmi_table[] __initconst = { |
2d70b73a | 1554 | { |
2d70b73a GKH |
1555 | .matches = { |
1556 | DMI_MATCH(DMI_SYS_VENDOR, | |
1557 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1558 | DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ |
2d70b73a | 1559 | }, |
2d70b73a GKH |
1560 | }, |
1561 | { | |
2d70b73a GKH |
1562 | .matches = { |
1563 | DMI_MATCH(DMI_SYS_VENDOR, | |
1564 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1565 | DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */ |
2d70b73a | 1566 | }, |
2d70b73a | 1567 | }, |
78a7539b | 1568 | { |
78a7539b TC |
1569 | .matches = { |
1570 | DMI_MATCH(DMI_SYS_VENDOR, | |
1571 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1572 | DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */ |
78a7539b | 1573 | }, |
78a7539b | 1574 | }, |
f689c875 | 1575 | { |
f689c875 RGS |
1576 | .matches = { |
1577 | DMI_MATCH(DMI_SYS_VENDOR, | |
1578 | "SAMSUNG ELECTRONICS CO., LTD."), | |
3be324a9 | 1579 | DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */ |
f689c875 | 1580 | }, |
7b3c257c | 1581 | }, |
e052067d CC |
1582 | /* DMI ids for laptops with bad Chassis Type */ |
1583 | { | |
1584 | .ident = "R40/R41", | |
1585 | .matches = { | |
1586 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1587 | DMI_MATCH(DMI_PRODUCT_NAME, "R40/R41"), | |
1588 | DMI_MATCH(DMI_BOARD_NAME, "R40/R41"), | |
1589 | }, | |
1590 | }, | |
a979e2e2 CC |
1591 | /* Specific DMI ids for laptop with quirks */ |
1592 | { | |
1593 | .callback = samsung_dmi_matched, | |
1594 | .ident = "N150P", | |
1595 | .matches = { | |
1596 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1597 | DMI_MATCH(DMI_PRODUCT_NAME, "N150P"), | |
1598 | DMI_MATCH(DMI_BOARD_NAME, "N150P"), | |
1599 | }, | |
4690555e | 1600 | .driver_data = &samsung_use_native_backlight, |
a979e2e2 CC |
1601 | }, |
1602 | { | |
1603 | .callback = samsung_dmi_matched, | |
1604 | .ident = "N145P/N250P/N260P", | |
1605 | .matches = { | |
1606 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1607 | DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"), | |
1608 | DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"), | |
1609 | }, | |
4690555e | 1610 | .driver_data = &samsung_use_native_backlight, |
a979e2e2 CC |
1611 | }, |
1612 | { | |
1613 | .callback = samsung_dmi_matched, | |
1614 | .ident = "N150/N210/N220", | |
1615 | .matches = { | |
1616 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1617 | DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"), | |
1618 | DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"), | |
1619 | }, | |
1620 | .driver_data = &samsung_broken_acpi_video, | |
1621 | }, | |
1622 | { | |
1623 | .callback = samsung_dmi_matched, | |
1624 | .ident = "NF110/NF210/NF310", | |
1625 | .matches = { | |
1626 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1627 | DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"), | |
1628 | DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"), | |
1629 | }, | |
1630 | .driver_data = &samsung_broken_acpi_video, | |
1631 | }, | |
09d5677c CC |
1632 | { |
1633 | .callback = samsung_dmi_matched, | |
1634 | .ident = "X360", | |
1635 | .matches = { | |
1636 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1637 | DMI_MATCH(DMI_PRODUCT_NAME, "X360"), | |
1638 | DMI_MATCH(DMI_BOARD_NAME, "X360"), | |
1639 | }, | |
1640 | .driver_data = &samsung_broken_acpi_video, | |
1641 | }, | |
e04c200f SF |
1642 | { |
1643 | .callback = samsung_dmi_matched, | |
1644 | .ident = "N250P", | |
1645 | .matches = { | |
1646 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1647 | DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), | |
1648 | DMI_MATCH(DMI_BOARD_NAME, "N250P"), | |
1649 | }, | |
4690555e | 1650 | .driver_data = &samsung_use_native_backlight, |
e04c200f | 1651 | }, |
5a1426c9 HG |
1652 | { |
1653 | .callback = samsung_dmi_matched, | |
1654 | .ident = "NC210", | |
1655 | .matches = { | |
1656 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1657 | DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"), | |
1658 | DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"), | |
1659 | }, | |
1660 | .driver_data = &samsung_broken_acpi_video, | |
1661 | }, | |
0ca849ea ST |
1662 | { |
1663 | .callback = samsung_dmi_matched, | |
1664 | .ident = "730U3E/740U3E", | |
1665 | .matches = { | |
1666 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1667 | DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), | |
1668 | }, | |
1669 | .driver_data = &samsung_np740u3e, | |
1670 | }, | |
b0dcaf4f JK |
1671 | { |
1672 | .callback = samsung_dmi_matched, | |
1673 | .ident = "300V3Z/300V4Z/300V5Z", | |
1674 | .matches = { | |
1675 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
1676 | DMI_MATCH(DMI_PRODUCT_NAME, "300V3Z/300V4Z/300V5Z"), | |
1677 | }, | |
1678 | .driver_data = &samsung_lid_handling, | |
1679 | }, | |
2d70b73a GKH |
1680 | { }, |
1681 | }; | |
1682 | MODULE_DEVICE_TABLE(dmi, samsung_dmi_table); | |
1683 | ||
5dea7a20 | 1684 | static struct platform_device *samsung_platform_device; |
2d70b73a GKH |
1685 | |
1686 | static int __init samsung_init(void) | |
1687 | { | |
5dea7a20 CC |
1688 | struct samsung_laptop *samsung; |
1689 | int ret; | |
2d70b73a | 1690 | |
e0094244 MF |
1691 | if (efi_enabled(EFI_BOOT)) |
1692 | return -ENODEV; | |
1693 | ||
a979e2e2 | 1694 | quirks = &samsung_unknown; |
2d70b73a GKH |
1695 | if (!force && !dmi_check_system(samsung_dmi_table)) |
1696 | return -ENODEV; | |
1697 | ||
a6df4894 CC |
1698 | samsung = kzalloc(sizeof(*samsung), GFP_KERNEL); |
1699 | if (!samsung) | |
1700 | return -ENOMEM; | |
1701 | ||
1702 | mutex_init(&samsung->sabi_mutex); | |
f34cd9ca | 1703 | samsung->handle_backlight = true; |
a979e2e2 | 1704 | samsung->quirks = quirks; |
f34cd9ca | 1705 | |
a60b2176 CC |
1706 | #ifdef CONFIG_ACPI |
1707 | if (samsung->quirks->broken_acpi_video) | |
6c072299 HG |
1708 | acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); |
1709 | if (samsung->quirks->use_native_backlight) | |
1710 | acpi_video_set_dmi_backlight_type(acpi_backlight_native); | |
4690555e | 1711 | |
6c072299 | 1712 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) |
4690555e | 1713 | samsung->handle_backlight = false; |
f34cd9ca | 1714 | #endif |
a979e2e2 | 1715 | |
5dea7a20 CC |
1716 | ret = samsung_platform_init(samsung); |
1717 | if (ret) | |
1718 | goto error_platform; | |
1719 | ||
1720 | ret = samsung_sabi_init(samsung); | |
1721 | if (ret) | |
1722 | goto error_sabi; | |
1723 | ||
1724 | ret = samsung_sysfs_init(samsung); | |
1725 | if (ret) | |
1726 | goto error_sysfs; | |
1727 | ||
1728 | ret = samsung_backlight_init(samsung); | |
1729 | if (ret) | |
1730 | goto error_backlight; | |
1731 | ||
1732 | ret = samsung_rfkill_init(samsung); | |
1733 | if (ret) | |
1734 | goto error_rfkill; | |
1735 | ||
f674ebf1 CC |
1736 | ret = samsung_leds_init(samsung); |
1737 | if (ret) | |
1738 | goto error_leds; | |
1739 | ||
b0dcaf4f JK |
1740 | ret = samsung_lid_handling_init(samsung); |
1741 | if (ret) | |
1742 | goto error_lid_handling; | |
1743 | ||
5b80fc40 CC |
1744 | ret = samsung_debugfs_init(samsung); |
1745 | if (ret) | |
1746 | goto error_debugfs; | |
1747 | ||
0ca849ea ST |
1748 | samsung->pm_nb.notifier_call = samsung_pm_notification; |
1749 | register_pm_notifier(&samsung->pm_nb); | |
1750 | ||
5dea7a20 CC |
1751 | samsung_platform_device = samsung->platform_device; |
1752 | return ret; | |
1753 | ||
5b80fc40 | 1754 | error_debugfs: |
b0dcaf4f JK |
1755 | samsung_lid_handling_exit(samsung); |
1756 | error_lid_handling: | |
f674ebf1 CC |
1757 | samsung_leds_exit(samsung); |
1758 | error_leds: | |
5b80fc40 | 1759 | samsung_rfkill_exit(samsung); |
5dea7a20 CC |
1760 | error_rfkill: |
1761 | samsung_backlight_exit(samsung); | |
1762 | error_backlight: | |
1763 | samsung_sysfs_exit(samsung); | |
1764 | error_sysfs: | |
1765 | samsung_sabi_exit(samsung); | |
1766 | error_sabi: | |
1767 | samsung_platform_exit(samsung); | |
1768 | error_platform: | |
a6df4894 | 1769 | kfree(samsung); |
5dea7a20 | 1770 | return ret; |
2d70b73a GKH |
1771 | } |
1772 | ||
1773 | static void __exit samsung_exit(void) | |
1774 | { | |
5dea7a20 CC |
1775 | struct samsung_laptop *samsung; |
1776 | ||
1777 | samsung = platform_get_drvdata(samsung_platform_device); | |
0ca849ea | 1778 | unregister_pm_notifier(&samsung->pm_nb); |
5dea7a20 | 1779 | |
5b80fc40 | 1780 | samsung_debugfs_exit(samsung); |
b0dcaf4f | 1781 | samsung_lid_handling_exit(samsung); |
f674ebf1 | 1782 | samsung_leds_exit(samsung); |
5dea7a20 CC |
1783 | samsung_rfkill_exit(samsung); |
1784 | samsung_backlight_exit(samsung); | |
1785 | samsung_sysfs_exit(samsung); | |
1786 | samsung_sabi_exit(samsung); | |
1787 | samsung_platform_exit(samsung); | |
a6df4894 | 1788 | |
a6df4894 | 1789 | kfree(samsung); |
5dea7a20 | 1790 | samsung_platform_device = NULL; |
2d70b73a GKH |
1791 | } |
1792 | ||
1793 | module_init(samsung_init); | |
1794 | module_exit(samsung_exit); | |
1795 | ||
1796 | MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>"); | |
1797 | MODULE_DESCRIPTION("Samsung Backlight driver"); | |
1798 | MODULE_LICENSE("GPL"); |