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, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #ifndef __LOCAL_LLC_H_ 20 #define __LOCAL_LLC_H_ 21 22 #include <net/nfc/hci.h> 23 #include <net/nfc/llc.h> 24 #include <linux/skbuff.h> 25 26 struct nfc_llc_ops { 27 void *(*init) (struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv, 28 rcv_to_hci_t rcv_to_hci, int tx_headroom, 29 int tx_tailroom, int *rx_headroom, int *rx_tailroom, 30 llc_failure_t llc_failure); 31 void (*deinit) (struct nfc_llc *llc); 32 int (*start) (struct nfc_llc *llc); 33 int (*stop) (struct nfc_llc *llc); 34 void (*rcv_from_drv) (struct nfc_llc *llc, struct sk_buff *skb); 35 int (*xmit_from_hci) (struct nfc_llc *llc, struct sk_buff *skb); 36 }; 37 38 struct nfc_llc_engine { 39 const char *name; 40 struct nfc_llc_ops *ops; 41 struct list_head entry; 42 }; 43 44 struct nfc_llc { 45 void *data; 46 struct nfc_llc_ops *ops; 47 int rx_headroom; 48 int rx_tailroom; 49 }; 50 51 void *nfc_llc_get_data(struct nfc_llc *llc); 52 53 int nfc_llc_register(const char *name, struct nfc_llc_ops *ops); 54 void nfc_llc_unregister(const char *name); 55 56 int nfc_llc_nop_register(void); 57 58 #if defined(CONFIG_NFC_SHDLC) 59 int nfc_llc_shdlc_register(void); 60 #else 61 static inline int nfc_llc_shdlc_register(void) 62 { 63 return 0; 64 } 65 #endif 66 67 #endif /* __LOCAL_LLC_H_ */ 68