linux/net/nfc/nci/data.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  The NFC Controller Interface is the communication protocol between an
 *  NFC Controller (NFCC) and a Device Host (DH).
 *
 *  Copyright (C) 2011 Texas Instruments, Inc.
 *  Copyright (C) 2014 Marvell International Ltd.
 *
 *  Written by Ilan Elias <[email protected]>
 */

#define pr_fmt(fmt) …

#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/wait.h>
#include <linux/bitops.h>
#include <linux/skbuff.h>

#include "../nfc.h"
#include <net/nfc/nci.h>
#include <net/nfc/nci_core.h>
#include <linux/nfc.h>

/* Complete data exchange transaction and forward skb to nfc core */
void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
				__u8 conn_id, int err)
{ … }

/* ----------------- NCI TX Data ----------------- */

static inline void nci_push_data_hdr(struct nci_dev *ndev,
				     __u8 conn_id,
				     struct sk_buff *skb,
				     __u8 pbf)
{ … }

int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id)
{ … }
EXPORT_SYMBOL(…);

static int nci_queue_tx_data_frags(struct nci_dev *ndev,
				   __u8 conn_id,
				   struct sk_buff *skb) { … }

/* Send NCI data */
int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb)
{ … }
EXPORT_SYMBOL(…);

/* ----------------- NCI RX Data ----------------- */

static void nci_add_rx_data_frag(struct nci_dev *ndev,
				 struct sk_buff *skb,
				 __u8 pbf, __u8 conn_id, __u8 status)
{ … }

/* Rx Data packet */
void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb)
{ … }