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a46ad0f1 ML |
1 | /* |
2 | * Alienware AlienFX control | |
3 | * | |
4 | * Copyright (C) 2014 Dell Inc <mario_limonciello@dell.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | */ | |
17 | ||
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
19 | ||
20 | #include <linux/acpi.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/dmi.h> | |
a46ad0f1 ML |
24 | #include <linux/leds.h> |
25 | ||
26 | #define LEGACY_CONTROL_GUID "A90597CE-A997-11DA-B012-B622A1EF5492" | |
27 | #define LEGACY_POWER_CONTROL_GUID "A80593CE-A997-11DA-B012-B622A1EF5492" | |
28 | #define WMAX_CONTROL_GUID "A70591CE-A997-11DA-B012-B622A1EF5492" | |
29 | ||
30 | #define WMAX_METHOD_HDMI_SOURCE 0x1 | |
31 | #define WMAX_METHOD_HDMI_STATUS 0x2 | |
32 | #define WMAX_METHOD_BRIGHTNESS 0x3 | |
33 | #define WMAX_METHOD_ZONE_CONTROL 0x4 | |
bc2ef884 | 34 | #define WMAX_METHOD_HDMI_CABLE 0x5 |
cbbb50d6 | 35 | #define WMAX_METHOD_AMPLIFIER_CABLE 0x6 |
8ea81ec6 ML |
36 | #define WMAX_METHOD_DEEP_SLEEP_CONTROL 0x0B |
37 | #define WMAX_METHOD_DEEP_SLEEP_STATUS 0x0C | |
a46ad0f1 ML |
38 | |
39 | MODULE_AUTHOR("Mario Limonciello <mario_limonciello@dell.com>"); | |
40 | MODULE_DESCRIPTION("Alienware special feature control"); | |
41 | MODULE_LICENSE("GPL"); | |
42 | MODULE_ALIAS("wmi:" LEGACY_CONTROL_GUID); | |
43 | MODULE_ALIAS("wmi:" WMAX_CONTROL_GUID); | |
44 | ||
45 | enum INTERFACE_FLAGS { | |
46 | LEGACY, | |
47 | WMAX, | |
48 | }; | |
49 | ||
50 | enum LEGACY_CONTROL_STATES { | |
51 | LEGACY_RUNNING = 1, | |
52 | LEGACY_BOOTING = 0, | |
53 | LEGACY_SUSPEND = 3, | |
54 | }; | |
55 | ||
56 | enum WMAX_CONTROL_STATES { | |
57 | WMAX_RUNNING = 0xFF, | |
58 | WMAX_BOOTING = 0, | |
59 | WMAX_SUSPEND = 3, | |
60 | }; | |
61 | ||
62 | struct quirk_entry { | |
63 | u8 num_zones; | |
fee4efd7 | 64 | u8 hdmi_mux; |
cbbb50d6 | 65 | u8 amplifier; |
8ea81ec6 | 66 | u8 deepslp; |
a46ad0f1 ML |
67 | }; |
68 | ||
69 | static struct quirk_entry *quirks; | |
70 | ||
71 | static struct quirk_entry quirk_unknown = { | |
72 | .num_zones = 2, | |
fee4efd7 | 73 | .hdmi_mux = 0, |
cbbb50d6 | 74 | .amplifier = 0, |
8ea81ec6 | 75 | .deepslp = 0, |
a46ad0f1 ML |
76 | }; |
77 | ||
9e503a9d | 78 | static struct quirk_entry quirk_x51_r1_r2 = { |
a46ad0f1 | 79 | .num_zones = 3, |
cbbb50d6 ML |
80 | .hdmi_mux = 0, |
81 | .amplifier = 0, | |
8ea81ec6 | 82 | .deepslp = 0, |
fee4efd7 ML |
83 | }; |
84 | ||
9e503a9d ML |
85 | static struct quirk_entry quirk_x51_r3 = { |
86 | .num_zones = 4, | |
87 | .hdmi_mux = 0, | |
cbbb50d6 | 88 | .amplifier = 1, |
8ea81ec6 | 89 | .deepslp = 0, |
9e503a9d ML |
90 | }; |
91 | ||
fee4efd7 ML |
92 | static struct quirk_entry quirk_asm100 = { |
93 | .num_zones = 2, | |
94 | .hdmi_mux = 1, | |
cbbb50d6 | 95 | .amplifier = 0, |
8ea81ec6 | 96 | .deepslp = 0, |
a46ad0f1 ML |
97 | }; |
98 | ||
b332f82e ML |
99 | static struct quirk_entry quirk_asm200 = { |
100 | .num_zones = 2, | |
101 | .hdmi_mux = 1, | |
102 | .amplifier = 0, | |
103 | .deepslp = 1, | |
104 | }; | |
105 | ||
106 | static struct quirk_entry quirk_asm201 = { | |
107 | .num_zones = 2, | |
108 | .hdmi_mux = 1, | |
109 | .amplifier = 1, | |
110 | .deepslp = 1, | |
111 | }; | |
112 | ||
d997d88e | 113 | static int __init dmi_matched(const struct dmi_system_id *dmi) |
a46ad0f1 ML |
114 | { |
115 | quirks = dmi->driver_data; | |
116 | return 1; | |
117 | } | |
118 | ||
d997d88e | 119 | static const struct dmi_system_id alienware_quirks[] __initconst = { |
a46ad0f1 ML |
120 | { |
121 | .callback = dmi_matched, | |
9e503a9d | 122 | .ident = "Alienware X51 R3", |
a46ad0f1 ML |
123 | .matches = { |
124 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
9e503a9d | 125 | DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), |
a46ad0f1 | 126 | }, |
9e503a9d | 127 | .driver_data = &quirk_x51_r3, |
a46ad0f1 ML |
128 | }, |
129 | { | |
130 | .callback = dmi_matched, | |
131 | .ident = "Alienware X51 R2", | |
132 | .matches = { | |
133 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
134 | DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), | |
135 | }, | |
9e503a9d ML |
136 | .driver_data = &quirk_x51_r1_r2, |
137 | }, | |
138 | { | |
139 | .callback = dmi_matched, | |
140 | .ident = "Alienware X51 R1", | |
141 | .matches = { | |
142 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
143 | DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), | |
144 | }, | |
145 | .driver_data = &quirk_x51_r1_r2, | |
a46ad0f1 | 146 | }, |
fee4efd7 | 147 | { |
66ad0dd3 ML |
148 | .callback = dmi_matched, |
149 | .ident = "Alienware ASM100", | |
150 | .matches = { | |
151 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
152 | DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), | |
153 | }, | |
154 | .driver_data = &quirk_asm100, | |
155 | }, | |
b332f82e ML |
156 | { |
157 | .callback = dmi_matched, | |
158 | .ident = "Alienware ASM200", | |
159 | .matches = { | |
160 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
161 | DMI_MATCH(DMI_PRODUCT_NAME, "ASM200"), | |
162 | }, | |
163 | .driver_data = &quirk_asm200, | |
164 | }, | |
165 | { | |
166 | .callback = dmi_matched, | |
167 | .ident = "Alienware ASM201", | |
168 | .matches = { | |
169 | DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), | |
170 | DMI_MATCH(DMI_PRODUCT_NAME, "ASM201"), | |
171 | }, | |
172 | .driver_data = &quirk_asm201, | |
173 | }, | |
a46ad0f1 ML |
174 | {} |
175 | }; | |
176 | ||
177 | struct color_platform { | |
178 | u8 blue; | |
179 | u8 green; | |
180 | u8 red; | |
181 | } __packed; | |
182 | ||
183 | struct platform_zone { | |
184 | u8 location; | |
185 | struct device_attribute *attr; | |
186 | struct color_platform colors; | |
187 | }; | |
188 | ||
189 | struct wmax_brightness_args { | |
190 | u32 led_mask; | |
191 | u32 percentage; | |
192 | }; | |
193 | ||
cbbb50d6 | 194 | struct wmax_basic_args { |
a46ad0f1 ML |
195 | u8 arg; |
196 | }; | |
197 | ||
198 | struct legacy_led_args { | |
199 | struct color_platform colors; | |
200 | u8 brightness; | |
201 | u8 state; | |
202 | } __packed; | |
203 | ||
204 | struct wmax_led_args { | |
205 | u32 led_mask; | |
206 | struct color_platform colors; | |
207 | u8 state; | |
208 | } __packed; | |
209 | ||
210 | static struct platform_device *platform_device; | |
211 | static struct device_attribute *zone_dev_attrs; | |
212 | static struct attribute **zone_attrs; | |
213 | static struct platform_zone *zone_data; | |
214 | ||
215 | static struct platform_driver platform_driver = { | |
216 | .driver = { | |
217 | .name = "alienware-wmi", | |
a46ad0f1 ML |
218 | } |
219 | }; | |
220 | ||
221 | static struct attribute_group zone_attribute_group = { | |
222 | .name = "rgb_zones", | |
223 | }; | |
224 | ||
225 | static u8 interface; | |
226 | static u8 lighting_control_state; | |
227 | static u8 global_brightness; | |
228 | ||
229 | /* | |
230 | * Helpers used for zone control | |
ec5eeadc | 231 | */ |
a46ad0f1 ML |
232 | static int parse_rgb(const char *buf, struct platform_zone *zone) |
233 | { | |
234 | long unsigned int rgb; | |
235 | int ret; | |
236 | union color_union { | |
237 | struct color_platform cp; | |
238 | int package; | |
239 | } repackager; | |
240 | ||
241 | ret = kstrtoul(buf, 16, &rgb); | |
242 | if (ret) | |
243 | return ret; | |
244 | ||
245 | /* RGB triplet notation is 24-bit hexadecimal */ | |
246 | if (rgb > 0xFFFFFF) | |
247 | return -EINVAL; | |
248 | ||
249 | repackager.package = rgb & 0x0f0f0f0f; | |
250 | pr_debug("alienware-wmi: r: %d g:%d b: %d\n", | |
251 | repackager.cp.red, repackager.cp.green, repackager.cp.blue); | |
252 | zone->colors = repackager.cp; | |
253 | return 0; | |
254 | } | |
255 | ||
256 | static struct platform_zone *match_zone(struct device_attribute *attr) | |
257 | { | |
22ff1a36 AB |
258 | u8 zone; |
259 | ||
260 | for (zone = 0; zone < quirks->num_zones; zone++) { | |
261 | if ((struct device_attribute *)zone_data[zone].attr == attr) { | |
a46ad0f1 | 262 | pr_debug("alienware-wmi: matched zone location: %d\n", |
22ff1a36 AB |
263 | zone_data[zone].location); |
264 | return &zone_data[zone]; | |
a46ad0f1 ML |
265 | } |
266 | } | |
267 | return NULL; | |
268 | } | |
269 | ||
270 | /* | |
271 | * Individual RGB zone control | |
ec5eeadc | 272 | */ |
a46ad0f1 ML |
273 | static int alienware_update_led(struct platform_zone *zone) |
274 | { | |
275 | int method_id; | |
276 | acpi_status status; | |
277 | char *guid; | |
278 | struct acpi_buffer input; | |
279 | struct legacy_led_args legacy_args; | |
cbbb50d6 | 280 | struct wmax_led_args wmax_basic_args; |
a46ad0f1 | 281 | if (interface == WMAX) { |
cbbb50d6 ML |
282 | wmax_basic_args.led_mask = 1 << zone->location; |
283 | wmax_basic_args.colors = zone->colors; | |
284 | wmax_basic_args.state = lighting_control_state; | |
a46ad0f1 ML |
285 | guid = WMAX_CONTROL_GUID; |
286 | method_id = WMAX_METHOD_ZONE_CONTROL; | |
287 | ||
cbbb50d6 ML |
288 | input.length = (acpi_size) sizeof(wmax_basic_args); |
289 | input.pointer = &wmax_basic_args; | |
a46ad0f1 ML |
290 | } else { |
291 | legacy_args.colors = zone->colors; | |
292 | legacy_args.brightness = global_brightness; | |
293 | legacy_args.state = 0; | |
294 | if (lighting_control_state == LEGACY_BOOTING || | |
295 | lighting_control_state == LEGACY_SUSPEND) { | |
296 | guid = LEGACY_POWER_CONTROL_GUID; | |
297 | legacy_args.state = lighting_control_state; | |
298 | } else | |
299 | guid = LEGACY_CONTROL_GUID; | |
300 | method_id = zone->location + 1; | |
301 | ||
302 | input.length = (acpi_size) sizeof(legacy_args); | |
303 | input.pointer = &legacy_args; | |
304 | } | |
305 | pr_debug("alienware-wmi: guid %s method %d\n", guid, method_id); | |
306 | ||
c0e4aa78 | 307 | status = wmi_evaluate_method(guid, 0, method_id, &input, NULL); |
a46ad0f1 ML |
308 | if (ACPI_FAILURE(status)) |
309 | pr_err("alienware-wmi: zone set failure: %u\n", status); | |
310 | return ACPI_FAILURE(status); | |
311 | } | |
312 | ||
313 | static ssize_t zone_show(struct device *dev, struct device_attribute *attr, | |
314 | char *buf) | |
315 | { | |
316 | struct platform_zone *target_zone; | |
317 | target_zone = match_zone(attr); | |
318 | if (target_zone == NULL) | |
319 | return sprintf(buf, "red: -1, green: -1, blue: -1\n"); | |
320 | return sprintf(buf, "red: %d, green: %d, blue: %d\n", | |
321 | target_zone->colors.red, | |
322 | target_zone->colors.green, target_zone->colors.blue); | |
323 | ||
324 | } | |
325 | ||
326 | static ssize_t zone_set(struct device *dev, struct device_attribute *attr, | |
327 | const char *buf, size_t count) | |
328 | { | |
329 | struct platform_zone *target_zone; | |
330 | int ret; | |
331 | target_zone = match_zone(attr); | |
332 | if (target_zone == NULL) { | |
333 | pr_err("alienware-wmi: invalid target zone\n"); | |
334 | return 1; | |
335 | } | |
336 | ret = parse_rgb(buf, target_zone); | |
337 | if (ret) | |
338 | return ret; | |
339 | ret = alienware_update_led(target_zone); | |
340 | return ret ? ret : count; | |
341 | } | |
342 | ||
343 | /* | |
344 | * LED Brightness (Global) | |
ec5eeadc | 345 | */ |
a46ad0f1 ML |
346 | static int wmax_brightness(int brightness) |
347 | { | |
348 | acpi_status status; | |
349 | struct acpi_buffer input; | |
350 | struct wmax_brightness_args args = { | |
351 | .led_mask = 0xFF, | |
352 | .percentage = brightness, | |
353 | }; | |
354 | input.length = (acpi_size) sizeof(args); | |
355 | input.pointer = &args; | |
c0e4aa78 | 356 | status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, |
a46ad0f1 ML |
357 | WMAX_METHOD_BRIGHTNESS, &input, NULL); |
358 | if (ACPI_FAILURE(status)) | |
359 | pr_err("alienware-wmi: brightness set failure: %u\n", status); | |
360 | return ACPI_FAILURE(status); | |
361 | } | |
362 | ||
363 | static void global_led_set(struct led_classdev *led_cdev, | |
364 | enum led_brightness brightness) | |
365 | { | |
366 | int ret; | |
367 | global_brightness = brightness; | |
368 | if (interface == WMAX) | |
369 | ret = wmax_brightness(brightness); | |
370 | else | |
371 | ret = alienware_update_led(&zone_data[0]); | |
372 | if (ret) | |
373 | pr_err("LED brightness update failed\n"); | |
374 | } | |
375 | ||
376 | static enum led_brightness global_led_get(struct led_classdev *led_cdev) | |
377 | { | |
378 | return global_brightness; | |
379 | } | |
380 | ||
381 | static struct led_classdev global_led = { | |
382 | .brightness_set = global_led_set, | |
383 | .brightness_get = global_led_get, | |
384 | .name = "alienware::global_brightness", | |
385 | }; | |
386 | ||
387 | /* | |
388 | * Lighting control state device attribute (Global) | |
ec5eeadc | 389 | */ |
a46ad0f1 ML |
390 | static ssize_t show_control_state(struct device *dev, |
391 | struct device_attribute *attr, char *buf) | |
392 | { | |
393 | if (lighting_control_state == LEGACY_BOOTING) | |
394 | return scnprintf(buf, PAGE_SIZE, "[booting] running suspend\n"); | |
395 | else if (lighting_control_state == LEGACY_SUSPEND) | |
396 | return scnprintf(buf, PAGE_SIZE, "booting running [suspend]\n"); | |
397 | return scnprintf(buf, PAGE_SIZE, "booting [running] suspend\n"); | |
398 | } | |
399 | ||
400 | static ssize_t store_control_state(struct device *dev, | |
401 | struct device_attribute *attr, | |
402 | const char *buf, size_t count) | |
403 | { | |
404 | long unsigned int val; | |
405 | if (strcmp(buf, "booting\n") == 0) | |
406 | val = LEGACY_BOOTING; | |
407 | else if (strcmp(buf, "suspend\n") == 0) | |
408 | val = LEGACY_SUSPEND; | |
409 | else if (interface == LEGACY) | |
410 | val = LEGACY_RUNNING; | |
411 | else | |
412 | val = WMAX_RUNNING; | |
413 | lighting_control_state = val; | |
414 | pr_debug("alienware-wmi: updated control state to %d\n", | |
415 | lighting_control_state); | |
416 | return count; | |
417 | } | |
418 | ||
419 | static DEVICE_ATTR(lighting_control_state, 0644, show_control_state, | |
420 | store_control_state); | |
421 | ||
422 | static int alienware_zone_init(struct platform_device *dev) | |
423 | { | |
22ff1a36 | 424 | u8 zone; |
a46ad0f1 ML |
425 | char buffer[10]; |
426 | char *name; | |
427 | ||
428 | if (interface == WMAX) { | |
a46ad0f1 ML |
429 | lighting_control_state = WMAX_RUNNING; |
430 | } else if (interface == LEGACY) { | |
a46ad0f1 ML |
431 | lighting_control_state = LEGACY_RUNNING; |
432 | } | |
b998680e | 433 | global_led.max_brightness = 0x0F; |
a46ad0f1 ML |
434 | global_brightness = global_led.max_brightness; |
435 | ||
436 | /* | |
437 | * - zone_dev_attrs num_zones + 1 is for individual zones and then | |
438 | * null terminated | |
439 | * - zone_attrs num_zones + 2 is for all attrs in zone_dev_attrs + | |
440 | * the lighting control + null terminated | |
441 | * - zone_data num_zones is for the distinct zones | |
442 | */ | |
443 | zone_dev_attrs = | |
444 | kzalloc(sizeof(struct device_attribute) * (quirks->num_zones + 1), | |
445 | GFP_KERNEL); | |
562c7cec ML |
446 | if (!zone_dev_attrs) |
447 | return -ENOMEM; | |
448 | ||
a46ad0f1 ML |
449 | zone_attrs = |
450 | kzalloc(sizeof(struct attribute *) * (quirks->num_zones + 2), | |
451 | GFP_KERNEL); | |
562c7cec ML |
452 | if (!zone_attrs) |
453 | return -ENOMEM; | |
454 | ||
a46ad0f1 ML |
455 | zone_data = |
456 | kzalloc(sizeof(struct platform_zone) * (quirks->num_zones), | |
457 | GFP_KERNEL); | |
562c7cec ML |
458 | if (!zone_data) |
459 | return -ENOMEM; | |
a46ad0f1 | 460 | |
22ff1a36 AB |
461 | for (zone = 0; zone < quirks->num_zones; zone++) { |
462 | sprintf(buffer, "zone%02hhX", zone); | |
a46ad0f1 ML |
463 | name = kstrdup(buffer, GFP_KERNEL); |
464 | if (name == NULL) | |
465 | return 1; | |
22ff1a36 AB |
466 | sysfs_attr_init(&zone_dev_attrs[zone].attr); |
467 | zone_dev_attrs[zone].attr.name = name; | |
468 | zone_dev_attrs[zone].attr.mode = 0644; | |
469 | zone_dev_attrs[zone].show = zone_show; | |
470 | zone_dev_attrs[zone].store = zone_set; | |
471 | zone_data[zone].location = zone; | |
472 | zone_attrs[zone] = &zone_dev_attrs[zone].attr; | |
473 | zone_data[zone].attr = &zone_dev_attrs[zone]; | |
a46ad0f1 ML |
474 | } |
475 | zone_attrs[quirks->num_zones] = &dev_attr_lighting_control_state.attr; | |
476 | zone_attribute_group.attrs = zone_attrs; | |
477 | ||
478 | led_classdev_register(&dev->dev, &global_led); | |
479 | ||
480 | return sysfs_create_group(&dev->dev.kobj, &zone_attribute_group); | |
481 | } | |
482 | ||
483 | static void alienware_zone_exit(struct platform_device *dev) | |
484 | { | |
22ff1a36 AB |
485 | u8 zone; |
486 | ||
a46ad0f1 ML |
487 | sysfs_remove_group(&dev->dev.kobj, &zone_attribute_group); |
488 | led_classdev_unregister(&global_led); | |
489 | if (zone_dev_attrs) { | |
22ff1a36 AB |
490 | for (zone = 0; zone < quirks->num_zones; zone++) |
491 | kfree(zone_dev_attrs[zone].attr.name); | |
a46ad0f1 ML |
492 | } |
493 | kfree(zone_dev_attrs); | |
494 | kfree(zone_data); | |
495 | kfree(zone_attrs); | |
496 | } | |
497 | ||
cbbb50d6 | 498 | static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, |
bc2ef884 | 499 | u32 command, int *out_data) |
a46ad0f1 ML |
500 | { |
501 | acpi_status status; | |
a46ad0f1 | 502 | union acpi_object *obj; |
bc2ef884 ML |
503 | struct acpi_buffer input; |
504 | struct acpi_buffer output; | |
505 | ||
506 | input.length = (acpi_size) sizeof(*in_args); | |
507 | input.pointer = in_args; | |
508 | if (out_data != NULL) { | |
509 | output.length = ACPI_ALLOCATE_BUFFER; | |
510 | output.pointer = NULL; | |
c0e4aa78 | 511 | status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, |
bc2ef884 ML |
512 | command, &input, &output); |
513 | } else | |
c0e4aa78 | 514 | status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, |
bc2ef884 ML |
515 | command, &input, NULL); |
516 | ||
517 | if (ACPI_SUCCESS(status) && out_data != NULL) { | |
518 | obj = (union acpi_object *)output.pointer; | |
519 | if (obj && obj->type == ACPI_TYPE_INTEGER) | |
520 | *out_data = (u32) obj->integer.value; | |
521 | } | |
e2d5285b | 522 | kfree(output.pointer); |
bc2ef884 ML |
523 | return status; |
524 | ||
525 | } | |
526 | ||
cbbb50d6 ML |
527 | /* |
528 | * The HDMI mux sysfs node indicates the status of the HDMI input mux. | |
529 | * It can toggle between standard system GPU output and HDMI input. | |
530 | */ | |
bc2ef884 ML |
531 | static ssize_t show_hdmi_cable(struct device *dev, |
532 | struct device_attribute *attr, char *buf) | |
533 | { | |
534 | acpi_status status; | |
535 | u32 out_data; | |
cbbb50d6 | 536 | struct wmax_basic_args in_args = { |
a46ad0f1 ML |
537 | .arg = 0, |
538 | }; | |
bc2ef884 | 539 | status = |
cbbb50d6 | 540 | alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE, |
bc2ef884 ML |
541 | (u32 *) &out_data); |
542 | if (ACPI_SUCCESS(status)) { | |
543 | if (out_data == 0) | |
544 | return scnprintf(buf, PAGE_SIZE, | |
545 | "[unconnected] connected unknown\n"); | |
546 | else if (out_data == 1) | |
547 | return scnprintf(buf, PAGE_SIZE, | |
548 | "unconnected [connected] unknown\n"); | |
549 | } | |
550 | pr_err("alienware-wmi: unknown HDMI cable status: %d\n", status); | |
551 | return scnprintf(buf, PAGE_SIZE, "unconnected connected [unknown]\n"); | |
552 | } | |
553 | ||
554 | static ssize_t show_hdmi_source(struct device *dev, | |
555 | struct device_attribute *attr, char *buf) | |
556 | { | |
557 | acpi_status status; | |
558 | u32 out_data; | |
cbbb50d6 | 559 | struct wmax_basic_args in_args = { |
bc2ef884 ML |
560 | .arg = 0, |
561 | }; | |
562 | status = | |
cbbb50d6 | 563 | alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS, |
bc2ef884 | 564 | (u32 *) &out_data); |
a46ad0f1 ML |
565 | |
566 | if (ACPI_SUCCESS(status)) { | |
bc2ef884 | 567 | if (out_data == 1) |
a46ad0f1 ML |
568 | return scnprintf(buf, PAGE_SIZE, |
569 | "[input] gpu unknown\n"); | |
bc2ef884 | 570 | else if (out_data == 2) |
a46ad0f1 ML |
571 | return scnprintf(buf, PAGE_SIZE, |
572 | "input [gpu] unknown\n"); | |
573 | } | |
bc2ef884 | 574 | pr_err("alienware-wmi: unknown HDMI source status: %d\n", out_data); |
a46ad0f1 ML |
575 | return scnprintf(buf, PAGE_SIZE, "input gpu [unknown]\n"); |
576 | } | |
577 | ||
bc2ef884 ML |
578 | static ssize_t toggle_hdmi_source(struct device *dev, |
579 | struct device_attribute *attr, | |
580 | const char *buf, size_t count) | |
a46ad0f1 | 581 | { |
a46ad0f1 | 582 | acpi_status status; |
cbbb50d6 | 583 | struct wmax_basic_args args; |
a46ad0f1 ML |
584 | if (strcmp(buf, "gpu\n") == 0) |
585 | args.arg = 1; | |
586 | else if (strcmp(buf, "input\n") == 0) | |
587 | args.arg = 2; | |
588 | else | |
589 | args.arg = 3; | |
590 | pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf); | |
bc2ef884 | 591 | |
cbbb50d6 | 592 | status = alienware_wmax_command(&args, WMAX_METHOD_HDMI_SOURCE, NULL); |
bc2ef884 | 593 | |
a46ad0f1 ML |
594 | if (ACPI_FAILURE(status)) |
595 | pr_err("alienware-wmi: HDMI toggle failed: results: %u\n", | |
596 | status); | |
597 | return count; | |
598 | } | |
599 | ||
bc2ef884 ML |
600 | static DEVICE_ATTR(cable, S_IRUGO, show_hdmi_cable, NULL); |
601 | static DEVICE_ATTR(source, S_IRUGO | S_IWUSR, show_hdmi_source, | |
602 | toggle_hdmi_source); | |
603 | ||
604 | static struct attribute *hdmi_attrs[] = { | |
605 | &dev_attr_cable.attr, | |
606 | &dev_attr_source.attr, | |
607 | NULL, | |
608 | }; | |
a46ad0f1 | 609 | |
4b7942d8 | 610 | static const struct attribute_group hdmi_attribute_group = { |
bc2ef884 ML |
611 | .name = "hdmi", |
612 | .attrs = hdmi_attrs, | |
613 | }; | |
614 | ||
615 | static void remove_hdmi(struct platform_device *dev) | |
a46ad0f1 | 616 | { |
fee4efd7 ML |
617 | if (quirks->hdmi_mux > 0) |
618 | sysfs_remove_group(&dev->dev.kobj, &hdmi_attribute_group); | |
a46ad0f1 ML |
619 | } |
620 | ||
bc2ef884 | 621 | static int create_hdmi(struct platform_device *dev) |
a46ad0f1 | 622 | { |
bc2ef884 ML |
623 | int ret; |
624 | ||
625 | ret = sysfs_create_group(&dev->dev.kobj, &hdmi_attribute_group); | |
a46ad0f1 | 626 | if (ret) |
ec5eeadc | 627 | remove_hdmi(dev); |
a46ad0f1 ML |
628 | return ret; |
629 | } | |
630 | ||
cbbb50d6 ML |
631 | /* |
632 | * Alienware GFX amplifier support | |
633 | * - Currently supports reading cable status | |
634 | * - Leaving expansion room to possibly support dock/undock events later | |
635 | */ | |
636 | static ssize_t show_amplifier_status(struct device *dev, | |
637 | struct device_attribute *attr, char *buf) | |
638 | { | |
639 | acpi_status status; | |
640 | u32 out_data; | |
641 | struct wmax_basic_args in_args = { | |
642 | .arg = 0, | |
643 | }; | |
644 | status = | |
645 | alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE, | |
646 | (u32 *) &out_data); | |
647 | if (ACPI_SUCCESS(status)) { | |
648 | if (out_data == 0) | |
649 | return scnprintf(buf, PAGE_SIZE, | |
650 | "[unconnected] connected unknown\n"); | |
651 | else if (out_data == 1) | |
652 | return scnprintf(buf, PAGE_SIZE, | |
653 | "unconnected [connected] unknown\n"); | |
654 | } | |
655 | pr_err("alienware-wmi: unknown amplifier cable status: %d\n", status); | |
656 | return scnprintf(buf, PAGE_SIZE, "unconnected connected [unknown]\n"); | |
657 | } | |
658 | ||
659 | static DEVICE_ATTR(status, S_IRUGO, show_amplifier_status, NULL); | |
660 | ||
661 | static struct attribute *amplifier_attrs[] = { | |
662 | &dev_attr_status.attr, | |
663 | NULL, | |
664 | }; | |
665 | ||
4b7942d8 | 666 | static const struct attribute_group amplifier_attribute_group = { |
cbbb50d6 ML |
667 | .name = "amplifier", |
668 | .attrs = amplifier_attrs, | |
669 | }; | |
670 | ||
671 | static void remove_amplifier(struct platform_device *dev) | |
672 | { | |
673 | if (quirks->amplifier > 0) | |
674 | sysfs_remove_group(&dev->dev.kobj, &lifier_attribute_group); | |
675 | } | |
676 | ||
677 | static int create_amplifier(struct platform_device *dev) | |
678 | { | |
679 | int ret; | |
680 | ||
681 | ret = sysfs_create_group(&dev->dev.kobj, &lifier_attribute_group); | |
682 | if (ret) | |
683 | remove_amplifier(dev); | |
684 | return ret; | |
685 | } | |
686 | ||
8ea81ec6 ML |
687 | /* |
688 | * Deep Sleep Control support | |
689 | * - Modifies BIOS setting for deep sleep control allowing extra wakeup events | |
690 | */ | |
691 | static ssize_t show_deepsleep_status(struct device *dev, | |
692 | struct device_attribute *attr, char *buf) | |
693 | { | |
694 | acpi_status status; | |
695 | u32 out_data; | |
696 | struct wmax_basic_args in_args = { | |
697 | .arg = 0, | |
698 | }; | |
699 | status = alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS, | |
700 | (u32 *) &out_data); | |
701 | if (ACPI_SUCCESS(status)) { | |
702 | if (out_data == 0) | |
703 | return scnprintf(buf, PAGE_SIZE, | |
704 | "[disabled] s5 s5_s4\n"); | |
705 | else if (out_data == 1) | |
706 | return scnprintf(buf, PAGE_SIZE, | |
707 | "disabled [s5] s5_s4\n"); | |
708 | else if (out_data == 2) | |
709 | return scnprintf(buf, PAGE_SIZE, | |
710 | "disabled s5 [s5_s4]\n"); | |
711 | } | |
712 | pr_err("alienware-wmi: unknown deep sleep status: %d\n", status); | |
713 | return scnprintf(buf, PAGE_SIZE, "disabled s5 s5_s4 [unknown]\n"); | |
714 | } | |
715 | ||
716 | static ssize_t toggle_deepsleep(struct device *dev, | |
717 | struct device_attribute *attr, | |
718 | const char *buf, size_t count) | |
719 | { | |
720 | acpi_status status; | |
721 | struct wmax_basic_args args; | |
722 | ||
723 | if (strcmp(buf, "disabled\n") == 0) | |
724 | args.arg = 0; | |
725 | else if (strcmp(buf, "s5\n") == 0) | |
726 | args.arg = 1; | |
727 | else | |
728 | args.arg = 2; | |
729 | pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf); | |
730 | ||
731 | status = alienware_wmax_command(&args, WMAX_METHOD_DEEP_SLEEP_CONTROL, | |
732 | NULL); | |
733 | ||
734 | if (ACPI_FAILURE(status)) | |
735 | pr_err("alienware-wmi: deep sleep control failed: results: %u\n", | |
736 | status); | |
737 | return count; | |
738 | } | |
739 | ||
740 | static DEVICE_ATTR(deepsleep, S_IRUGO | S_IWUSR, show_deepsleep_status, toggle_deepsleep); | |
741 | ||
742 | static struct attribute *deepsleep_attrs[] = { | |
743 | &dev_attr_deepsleep.attr, | |
744 | NULL, | |
745 | }; | |
746 | ||
4b7942d8 | 747 | static const struct attribute_group deepsleep_attribute_group = { |
8ea81ec6 ML |
748 | .name = "deepsleep", |
749 | .attrs = deepsleep_attrs, | |
750 | }; | |
751 | ||
752 | static void remove_deepsleep(struct platform_device *dev) | |
753 | { | |
754 | if (quirks->deepslp > 0) | |
755 | sysfs_remove_group(&dev->dev.kobj, &deepsleep_attribute_group); | |
756 | } | |
757 | ||
758 | static int create_deepsleep(struct platform_device *dev) | |
759 | { | |
760 | int ret; | |
761 | ||
762 | ret = sysfs_create_group(&dev->dev.kobj, &deepsleep_attribute_group); | |
763 | if (ret) | |
764 | remove_deepsleep(dev); | |
765 | return ret; | |
766 | } | |
767 | ||
a46ad0f1 ML |
768 | static int __init alienware_wmi_init(void) |
769 | { | |
770 | int ret; | |
771 | ||
772 | if (wmi_has_guid(LEGACY_CONTROL_GUID)) | |
773 | interface = LEGACY; | |
774 | else if (wmi_has_guid(WMAX_CONTROL_GUID)) | |
775 | interface = WMAX; | |
776 | else { | |
777 | pr_warn("alienware-wmi: No known WMI GUID found\n"); | |
778 | return -ENODEV; | |
779 | } | |
780 | ||
781 | dmi_check_system(alienware_quirks); | |
782 | if (quirks == NULL) | |
783 | quirks = &quirk_unknown; | |
784 | ||
785 | ret = platform_driver_register(&platform_driver); | |
786 | if (ret) | |
787 | goto fail_platform_driver; | |
788 | platform_device = platform_device_alloc("alienware-wmi", -1); | |
789 | if (!platform_device) { | |
790 | ret = -ENOMEM; | |
791 | goto fail_platform_device1; | |
792 | } | |
793 | ret = platform_device_add(platform_device); | |
794 | if (ret) | |
795 | goto fail_platform_device2; | |
796 | ||
fee4efd7 | 797 | if (quirks->hdmi_mux > 0) { |
bc2ef884 | 798 | ret = create_hdmi(platform_device); |
a46ad0f1 ML |
799 | if (ret) |
800 | goto fail_prep_hdmi; | |
801 | } | |
802 | ||
cbbb50d6 ML |
803 | if (quirks->amplifier > 0) { |
804 | ret = create_amplifier(platform_device); | |
805 | if (ret) | |
806 | goto fail_prep_amplifier; | |
807 | } | |
808 | ||
8ea81ec6 ML |
809 | if (quirks->deepslp > 0) { |
810 | ret = create_deepsleep(platform_device); | |
811 | if (ret) | |
812 | goto fail_prep_deepsleep; | |
813 | } | |
814 | ||
a46ad0f1 ML |
815 | ret = alienware_zone_init(platform_device); |
816 | if (ret) | |
817 | goto fail_prep_zones; | |
818 | ||
819 | return 0; | |
820 | ||
821 | fail_prep_zones: | |
822 | alienware_zone_exit(platform_device); | |
8ea81ec6 | 823 | fail_prep_deepsleep: |
cbbb50d6 | 824 | fail_prep_amplifier: |
a46ad0f1 ML |
825 | fail_prep_hdmi: |
826 | platform_device_del(platform_device); | |
827 | fail_platform_device2: | |
828 | platform_device_put(platform_device); | |
829 | fail_platform_device1: | |
830 | platform_driver_unregister(&platform_driver); | |
831 | fail_platform_driver: | |
832 | return ret; | |
833 | } | |
834 | ||
835 | module_init(alienware_wmi_init); | |
836 | ||
837 | static void __exit alienware_wmi_exit(void) | |
838 | { | |
a46ad0f1 | 839 | if (platform_device) { |
562c7cec ML |
840 | alienware_zone_exit(platform_device); |
841 | remove_hdmi(platform_device); | |
a46ad0f1 ML |
842 | platform_device_unregister(platform_device); |
843 | platform_driver_unregister(&platform_driver); | |
844 | } | |
845 | } | |
846 | ||
847 | module_exit(alienware_wmi_exit); |