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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright (c) 2022-2023 Intel Corporation4 */5 6#ifndef _I915_GSC_PROXY_MEI_INTERFACE_H_7#define _I915_GSC_PROXY_MEI_INTERFACE_H_8 9#include <linux/types.h>10 11struct device;12struct module;13 14/**15 * struct i915_gsc_proxy_component_ops - ops for GSC Proxy services.16 * @owner: Module providing the ops17 * @send: sends a proxy message from GSC FW to ME FW18 * @recv: receives a proxy message for GSC FW from ME FW19 */20struct i915_gsc_proxy_component_ops {21 struct module *owner;22 23 /**24 * @send: Sends a proxy message to ME FW.25 * @dev: device struct corresponding to the mei device26 * @buf: message buffer to send27 * @size: size of the message28 * Return: bytes sent on success, negative errno value on failure29 */30 int (*send)(struct device *dev, const void *buf, size_t size);31 32 /**33 * @recv: Receives a proxy message from ME FW.34 * @dev: device struct corresponding to the mei device35 * @buf: message buffer to contain the received message36 * @size: size of the buffer37 * Return: bytes received on success, negative errno value on failure38 */39 int (*recv)(struct device *dev, void *buf, size_t size);40};41 42/**43 * struct i915_gsc_proxy_component - Used for communication between i915 and44 * MEI drivers for GSC proxy services45 * @mei_dev: device that provide the GSC proxy service.46 * @ops: Ops implemented by GSC proxy driver, used by i915 driver.47 */48struct i915_gsc_proxy_component {49 struct device *mei_dev;50 const struct i915_gsc_proxy_component_ops *ops;51};52 53#endif /* _I915_GSC_PROXY_MEI_INTERFACE_H_ */54