/* SPDX-License-Identifier: BSD-3-Clause

*

* Copyright(c) 2018 Intel Corporation. All rights reserved.

*

* Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>

* Keyon Jie <yang.jie@linux.intel.com>

*/

/**

* \file include/kernel/header.h

* \brief Non IPC command header

* \author Liam Girdwood <liam.r.girdwood@linux.intel.com>

* \author Keyon Jie <yang.jie@linux.intel.com>

*/

#ifndef __KERNEL_HEADER_H__

#define __KERNEL_HEADER_H__

#include <stdint.h>

/**

* \brief Header for all non IPC ABI data.

*

* Identifies data type, size and ABI.

* Data header used for all component data structures and binary blobs sent to

* firmware as runtime data. This data is typically sent by userspace

* applications and tunnelled through any OS kernel (via binary kcontrol on

* Linux) to the firmware.

*/

struct sof_abi_hdr {

uint32_t magic; /**< 'S', 'O', 'F', '\0' */

uint32_t type; /**< component specific type */

uint32_t size; /**< size in bytes of data excl. this struct */

uint32_t abi; /**< SOF ABI version */

uint32_t reserved[4]; /**< reserved for future use */

uint32_t data[0]; /**< Component data - opaque to core */

} __attribute__((packed));

#endif /* __KERNEL_HEADER_H__ */