1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Link Layer Control manager
 4 *
 5 * Copyright (C) 2012  Intel Corporation. All rights reserved.
 6 */
 7
 8#ifndef __LOCAL_LLC_H_
 9#define __LOCAL_LLC_H_
10
11#include <net/nfc/hci.h>
12#include <net/nfc/llc.h>
13#include <linux/skbuff.h>
14
15struct nfc_llc_ops {
16	void *(*init) (struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv,
17		       rcv_to_hci_t rcv_to_hci, int tx_headroom,
18		       int tx_tailroom, int *rx_headroom, int *rx_tailroom,
19		       llc_failure_t llc_failure);
20	void (*deinit) (struct nfc_llc *llc);
21	int (*start) (struct nfc_llc *llc);
22	int (*stop) (struct nfc_llc *llc);
23	void (*rcv_from_drv) (struct nfc_llc *llc, struct sk_buff *skb);
24	int (*xmit_from_hci) (struct nfc_llc *llc, struct sk_buff *skb);
25};
26
27struct nfc_llc_engine {
28	const char *name;
29	const struct nfc_llc_ops *ops;
30	struct list_head entry;
31};
32
33struct nfc_llc {
34	void *data;
35	const struct nfc_llc_ops *ops;
36	int rx_headroom;
37	int rx_tailroom;
38};
39
40void *nfc_llc_get_data(struct nfc_llc *llc);
41
42int nfc_llc_register(const char *name, const struct nfc_llc_ops *ops);
43void nfc_llc_unregister(const char *name);
44
45int nfc_llc_nop_register(void);
46
47#if defined(CONFIG_NFC_SHDLC)
48int nfc_llc_shdlc_register(void);
49#else
50static inline int nfc_llc_shdlc_register(void)
51{
52	return 0;
53}
54#endif
55
56#endif /* __LOCAL_LLC_H_ */