LXR linux/net/nfc/hci/llc.h

   1/*
   2 * Link Layer Control manager
   3 *
   4 * Copyright (C) 2012  Intel Corporation. All rights reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the
  17 * Free Software Foundation, Inc.,
  18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19 */
  20
  21#ifndef __LOCAL_LLC_H_
  22#define __LOCAL_LLC_H_
  23
  24#include <net/nfc/hci.h>
  25#include <net/nfc/llc.h>
  26#include <linux/skbuff.h>
  27
  28struct nfc_llc_ops {
  29        void *(*init) (struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv,
  30                       rcv_to_hci_t rcv_to_hci, int tx_headroom,
  31                       int tx_tailroom, int *rx_headroom, int *rx_tailroom,
  32                       llc_failure_t llc_failure);
  33        void (*deinit) (struct nfc_llc *llc);
  34        int (*start) (struct nfc_llc *llc);
  35        int (*stop) (struct nfc_llc *llc);
  36        void (*rcv_from_drv) (struct nfc_llc *llc, struct sk_buff *skb);
  37        int (*xmit_from_hci) (struct nfc_llc *llc, struct sk_buff *skb);
  38};
  39
  40struct nfc_llc_engine {
  41        const char *name;
  42        struct nfc_llc_ops *ops;
  43        struct list_head entry;
  44};
  45
  46struct nfc_llc {
  47        void *data;
  48        struct nfc_llc_ops *ops;
  49        int rx_headroom;
  50        int rx_tailroom;
  51};
  52
  53void *nfc_llc_get_data(struct nfc_llc *llc);
  54
  55int nfc_llc_register(const char *name, struct nfc_llc_ops *ops);
  56void nfc_llc_unregister(const char *name);
  57
  58int nfc_llc_nop_register(void);
  59
  60#if defined(CONFIG_NFC_SHDLC)
  61int nfc_llc_shdlc_register(void);
  62#else
  63static inline int nfc_llc_shdlc_register(void)
  64{
  65        return 0;
  66}
  67#endif
  68
  69#endif /* __LOCAL_LLC_H_ */
  70