linux/drivers/net/ethernet/qualcomm/qca_7k_common.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
/*
 *   Copyright (c) 2011, 2012, Atheros Communications Inc.
 *   Copyright (c) 2014, I2SE GmbH
 */

/*   Atheros ethernet framing. Every Ethernet frame is surrounded
 *   by an atheros frame while transmitted over a serial channel;
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>

#include "qca_7k_common.h"

u16
qcafrm_create_header(u8 *buf, u16 length)
{ … }
EXPORT_SYMBOL_GPL(…);

u16
qcafrm_create_footer(u8 *buf)
{ … }
EXPORT_SYMBOL_GPL(…);

/*   Gather received bytes and try to extract a full ethernet frame by
 *   following a simple state machine.
 *
 * Return:   QCAFRM_GATHER       No ethernet frame fully received yet.
 *           QCAFRM_NOHEAD       Header expected but not found.
 *           QCAFRM_INVLEN       Atheros frame length is invalid
 *           QCAFRM_NOTAIL       Footer expected but not found.
 *           > 0                 Number of byte in the fully received
 *                               Ethernet frame
 */

s32
qcafrm_fsm_decode(struct qcafrm_handle *handle, u8 *buf, u16 buf_len, u8 recv_byte)
{ … }
EXPORT_SYMBOL_GPL(…);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;