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39 lines
1.1 KiB
39 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Interface for Surface ACPI Notify (SAN) driver. |
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* |
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* Provides access to discrete GPU notifications sent from ACPI via the SAN |
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* driver, which are not handled by this driver directly. |
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* |
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* Copyright (C) 2019-2020 Maximilian Luz <[email protected]> |
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*/ |
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#ifndef _LINUX_SURFACE_ACPI_NOTIFY_H |
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#define _LINUX_SURFACE_ACPI_NOTIFY_H |
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#include <linux/notifier.h> |
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#include <linux/types.h> |
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/** |
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* struct san_dgpu_event - Discrete GPU ACPI event. |
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* @category: Category of the event. |
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* @target: Target ID of the event source. |
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* @command: Command ID of the event. |
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* @instance: Instance ID of the event source. |
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* @length: Length of the event's payload data (in bytes). |
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* @payload: Pointer to the event's payload data. |
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*/ |
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struct san_dgpu_event { |
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u8 category; |
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u8 target; |
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u8 command; |
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u8 instance; |
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u16 length; |
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u8 *payload; |
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}; |
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int san_client_link(struct device *client); |
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int san_dgpu_notifier_register(struct notifier_block *nb); |
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int san_dgpu_notifier_unregister(struct notifier_block *nb); |
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#endif /* _LINUX_SURFACE_ACPI_NOTIFY_H */
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