blob: facfd198833c82035047253f0d7c9437e2eac552 [file] [log] [blame]
/*
* Texas Instruments K3 Secure Proxy Driver
* Based on Linux and U-Boot implementation
*
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef K3_SEC_PROXY_H
#define K3_SEC_PROXY_H
#include <stdint.h>
/**
* enum k3_sec_proxy_chan_id - Secure Proxy thread IDs
*
* These the available IDs used in k3_sec_proxy_{send,recv}()
*/
enum k3_sec_proxy_chan_id {
SP_NOTIFY = 0,
SP_RESPONSE,
SP_HIGH_PRIORITY,
SP_LOW_PRIORITY,
SP_NOTIFY_RESP,
};
/**
* struct k3_sec_proxy_msg - Secure proxy message structure
* @len: Length of data in the Buffer
* @buf: Buffer pointer
*
* This is the structure for data used in k3_sec_proxy_{send,recv}()
*/
struct k3_sec_proxy_msg {
size_t len;
uint8_t *buf;
};
/**
* k3_sec_proxy_send() - Send data over a Secure Proxy thread
* @id: Channel Identifier
* @msg: Pointer to k3_sec_proxy_msg
*
* Return: 0 if all goes well, else appropriate error message
*/
int k3_sec_proxy_send(enum k3_sec_proxy_chan_id id, const struct k3_sec_proxy_msg *msg);
/**
* k3_sec_proxy_recv() - Receive data from a Secure Proxy thread
* @id: Channel Identifier
* @msg: Pointer to k3_sec_proxy_msg
*
* Return: 0 if all goes well, else appropriate error message
*/
int k3_sec_proxy_recv(enum k3_sec_proxy_chan_id id, struct k3_sec_proxy_msg *msg);
#endif /* K3_SEC_PROXY_H */