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 28 struct 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 40 struct nfc_llc_engine { 41 const char *name; 42 struct nfc_llc_ops *ops; 43 struct list_head entry; 44 }; 45 46 struct nfc_llc { 47 void *data; 48 struct nfc_llc_ops *ops; 49 int rx_headroom; 50 int rx_tailroom; 51 }; 52 53 void *nfc_llc_get_data(struct nfc_llc *llc); 54 55 int nfc_llc_register(const char *name, struct nfc_llc_ops *ops); 56 void nfc_llc_unregister(const char *name); 57 58 int nfc_llc_nop_register(void); 59 60 #if defined(CONFIG_NFC_SHDLC) 61 int nfc_llc_shdlc_register(void); 62 #else 63 static inline int nfc_llc_shdlc_register(void) 64 { 65 return 0; 66 } 67 #endif 68 69 #endif /* __LOCAL_LLC_H_ */ 70