54 строки
1.5 KiB
C
54 строки
1.5 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Copyright (c) 2022-2023 Intel Corporation
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*/
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#ifndef _I915_GSC_PROXY_MEI_INTERFACE_H_
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#define _I915_GSC_PROXY_MEI_INTERFACE_H_
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#include <linux/types.h>
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struct device;
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struct module;
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/**
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* struct i915_gsc_proxy_component_ops - ops for GSC Proxy services.
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* @owner: Module providing the ops
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* @send: sends a proxy message from GSC FW to ME FW
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* @recv: receives a proxy message for GSC FW from ME FW
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*/
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struct i915_gsc_proxy_component_ops {
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struct module *owner;
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/**
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* send - Sends a proxy message to ME FW.
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* @dev: device struct corresponding to the mei device
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* @buf: message buffer to send
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* @size: size of the message
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* Return: bytes sent on success, negative errno value on failure
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*/
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int (*send)(struct device *dev, const void *buf, size_t size);
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/**
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* recv - Receives a proxy message from ME FW.
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* @dev: device struct corresponding to the mei device
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* @buf: message buffer to contain the received message
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* @size: size of the buffer
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* Return: bytes received on success, negative errno value on failure
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*/
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int (*recv)(struct device *dev, void *buf, size_t size);
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};
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/**
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* struct i915_gsc_proxy_component - Used for communication between i915 and
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* MEI drivers for GSC proxy services
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* @mei_dev: device that provide the GSC proxy service.
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* @ops: Ops implemented by GSC proxy driver, used by i915 driver.
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*/
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struct i915_gsc_proxy_component {
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struct device *mei_dev;
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const struct i915_gsc_proxy_component_ops *ops;
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};
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#endif /* _I915_GSC_PROXY_MEI_INTERFACE_H_ */
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