/* 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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