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