include/net/nfc/llc.h

   1 /*
   2  * Link Layer Control manager public interface
   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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef __NFC_LLC_H_
  20 #define __NFC_LLC_H_
  21
  22 #include <net/nfc/hci.h>
  23 #include <linux/skbuff.h>
  24
  25 #define LLC_NOP_NAME "nop"
  26 #define LLC_SHDLC_NAME "shdlc"
  27
  28 typedef void (*rcv_to_hci_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
  29 typedef int (*xmit_to_drv_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
  30 typedef void (*llc_failure_t) (struct nfc_hci_dev *hdev, int err);
  31
  32 struct nfc_llc;
  33
  34 struct nfc_llc *nfc_llc_allocate(const char *name, struct nfc_hci_dev *hdev,
  35                                  xmit_to_drv_t xmit_to_drv,
  36                                  rcv_to_hci_t rcv_to_hci, int tx_headroom,
  37                                  int tx_tailroom, llc_failure_t llc_failure);
  38 void nfc_llc_free(struct nfc_llc *llc);
  39
  40 void nfc_llc_get_rx_head_tail_room(struct nfc_llc *llc, int *rx_headroom,
  41                                    int *rx_tailroom);
  42
  43
  44 int nfc_llc_start(struct nfc_llc *llc);
  45 int nfc_llc_stop(struct nfc_llc *llc);
  46 void nfc_llc_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb);
  47 int nfc_llc_xmit_from_hci(struct nfc_llc *llc, struct sk_buff *skb);
  48
  49 int nfc_llc_init(void);
  50 void nfc_llc_exit(void);
  51
  52 #endif /* __NFC_LLC_H_ */