1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * The GameZone WMI interface provides platform profile and fan curve settings
23 #include "wmi-events.h"
24 #include "wmi-gamezone.h"
25 #include "wmi-helpers.h"
26 #include "wmi-other.h"
28 #define LENOVO_GAMEZONE_GUID "887B54E3-DDDC-4B2C-8B88-68A26A8835D0"
55  * lwmi_gz_mode_call() - Call method for lenovo-wmi-other driver notifier.
57  * @nb: The notifier_block registered to lenovo-wmi-other driver.
75 		scoped_guard(spinlock, &priv->gz_mode_lock) {  in lwmi_gz_mode_call()
76 			**mode = priv->current_mode;  in lwmi_gz_mode_call()
85  * lwmi_gz_event_call() - Call method for lenovo-wmi-events driver notifier.
87  * @nb: The notifier_block registered to lenovo-wmi-events driver.
106 		scoped_guard(spinlock, &priv->gz_mode_lock) {  in lwmi_gz_event_call()
107 			priv->current_mode = *mode;  in lwmi_gz_event_call()
109 		platform_profile_notify(priv->ppdev);  in lwmi_gz_event_call()
117  * lwmi_gz_thermal_mode_supported() - Get the version of the WMI
118  * interface to determine the support level.
120  * @supported: Pointer to return the support level with.
132  * lwmi_gz_thermal_mode_get() - Get the current thermal mode.
146  * lwmi_gz_profile_get() - Get the current platform profile.
148  * @profile: Pointer to provide the current platform profile with.
150  * Call lwmi_gz_thermal_mode_get and convert the thermal mode into a platform
151  * profile based on the support level of the interface.
162 	ret = lwmi_gz_thermal_mode_get(priv->wdev, &mode);  in lwmi_gz_profile_get()
174 		if (priv->extreme_supported) {  in lwmi_gz_profile_get()
187 		return -EINVAL;  in lwmi_gz_profile_get()
190 	guard(spinlock)(&priv->gz_mode_lock);  in lwmi_gz_profile_get()
191 	priv->current_mode = mode;  in lwmi_gz_profile_get()
197  * lwmi_gz_profile_set() - Set the current platform profile.
199  * @profile: Pointer to the desired platform profile.
201  * Convert the given platform profile into a thermal mode based on the support
202  * level of the interface, then call the WMI method to set the thermal mode.
225 		if (priv->extreme_supported) {  in lwmi_gz_profile_set()
235 		return -EOPNOTSUPP;  in lwmi_gz_profile_set()
240 	ret = lwmi_dev_evaluate_int(priv->wdev, 0x0,  in lwmi_gz_profile_set()
246 	guard(spinlock)(&priv->gz_mode_lock);  in lwmi_gz_profile_set()
247 	priv->current_mode = mode;  in lwmi_gz_profile_set()
282  * lwmi_gz_extreme_supported() - Evaluate if a device supports extreme thermal mode.
305 	quirks = dmi_id->driver_data;  in lwmi_gz_extreme_supported()
307 	return quirks->extreme_supported;  in lwmi_gz_extreme_supported()
311  * lwmi_gz_platform_profile_probe - Enable and set up the platform profile
314  * @choices: Container for enabled platform profiles.
316  * Determine if thermal mode is supported, and if so to what feature level.
317  * Then enable all supported platform profiles.
327 	ret = lwmi_gz_thermal_mode_supported(priv->wdev, &profile_support_ver);  in lwmi_gz_platform_profile_probe()
332 		return -ENODEV;  in lwmi_gz_platform_profile_probe()
339 	priv->extreme_supported = lwmi_gz_extreme_supported(profile_support_ver);  in lwmi_gz_platform_profile_probe()
340 	if (priv->extreme_supported)  in lwmi_gz_platform_profile_probe()
357 	priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL);  in lwmi_gz_probe()
359 		return -ENOMEM;  in lwmi_gz_probe()
361 	priv->wdev = wdev;  in lwmi_gz_probe()
362 	dev_set_drvdata(&wdev->dev, priv);  in lwmi_gz_probe()
364 	priv->ppdev = devm_platform_profile_register(&wdev->dev, "lenovo-wmi-gamezone",  in lwmi_gz_probe()
366 	if (IS_ERR(priv->ppdev))  in lwmi_gz_probe()
367 		return -ENODEV;  in lwmi_gz_probe()
369 	spin_lock_init(&priv->gz_mode_lock);  in lwmi_gz_probe()
371 	ret = lwmi_gz_thermal_mode_get(wdev, &priv->current_mode);  in lwmi_gz_probe()
375 	priv->event_nb.notifier_call = lwmi_gz_event_call;  in lwmi_gz_probe()
376 	ret = devm_lwmi_events_register_notifier(&wdev->dev, &priv->event_nb);  in lwmi_gz_probe()
380 	priv->mode_nb.notifier_call = lwmi_gz_mode_call;  in lwmi_gz_probe()
381 	return devm_lwmi_om_register_notifier(&wdev->dev, &priv->mode_nb);  in lwmi_gz_probe()