1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2011 Instituto Nokia de Tecnologia 4 * 5 * Authors: 6 * Lauro Ramos Venancio <lauro.venancio@openbossa.org> 7 * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> 8 */ 9 10 #ifndef __LOCAL_NFC_H 11 #define __LOCAL_NFC_H 12 13 #include <net/nfc/nfc.h> 14 #include <net/sock.h> 15 16 #define NFC_TARGET_MODE_IDLE 0 17 #define NFC_TARGET_MODE_SLEEP 1 18 19 struct nfc_protocol { 20 int id; 21 struct proto *proto; 22 struct module *owner; 23 int (*create)(struct net *net, struct socket *sock, 24 const struct nfc_protocol *nfc_proto, int kern); 25 }; 26 27 struct nfc_rawsock { 28 struct sock sk; 29 struct nfc_dev *dev; 30 u32 target_idx; 31 struct work_struct tx_work; 32 bool tx_work_scheduled; 33 }; 34 35 struct nfc_sock_list { 36 struct hlist_head head; 37 rwlock_t lock; 38 }; 39 40 #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk) 41 #define to_rawsock_sk(_tx_work) \ 42 ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work)) 43 44 struct nfc_llcp_sdp_tlv; 45 46 void nfc_llcp_mac_is_down(struct nfc_dev *dev); 47 void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, 48 u8 comm_mode, u8 rf_mode); 49 int nfc_llcp_register_device(struct nfc_dev *dev); 50 void nfc_llcp_unregister_device(struct nfc_dev *dev); 51 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len); 52 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); 53 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb); 54 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev); 55 int __init nfc_llcp_init(void); 56 void nfc_llcp_exit(void); 57 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp); 58 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head); 59 60 int __init rawsock_init(void); 61 void rawsock_exit(void); 62 63 int __init af_nfc_init(void); 64 void af_nfc_exit(void); 65 int nfc_proto_register(const struct nfc_protocol *nfc_proto); 66 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); 67 68 extern int nfc_devlist_generation; 69 extern struct mutex nfc_devlist_mutex; 70 71 int __init nfc_genl_init(void); 72 void nfc_genl_exit(void); 73 74 void nfc_genl_data_init(struct nfc_genl_data *genl_data); 75 void nfc_genl_data_exit(struct nfc_genl_data *genl_data); 76 77 int nfc_genl_targets_found(struct nfc_dev *dev); 78 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx); 79 80 int nfc_genl_device_added(struct nfc_dev *dev); 81 int nfc_genl_device_removed(struct nfc_dev *dev); 82 83 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, 84 u8 comm_mode, u8 rf_mode); 85 int nfc_genl_dep_link_down_event(struct nfc_dev *dev); 86 87 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); 88 int nfc_genl_tm_deactivated(struct nfc_dev *dev); 89 90 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list); 91 92 int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type); 93 int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx); 94 int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx, 95 struct nfc_evt_transaction *evt_transaction); 96 int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx); 97 98 struct nfc_dev *nfc_get_device(unsigned int idx); 99 100 static inline void nfc_put_device(struct nfc_dev *dev) 101 { 102 put_device(&dev->dev); 103 } 104 105 static inline void nfc_device_iter_init(struct class_dev_iter *iter) 106 { 107 class_dev_iter_init(iter, &nfc_class, NULL, NULL); 108 } 109 110 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) 111 { 112 struct device *d = class_dev_iter_next(iter); 113 if (!d) 114 return NULL; 115 116 return to_nfc_dev(d); 117 } 118 119 static inline void nfc_device_iter_exit(struct class_dev_iter *iter) 120 { 121 class_dev_iter_exit(iter); 122 } 123 124 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name); 125 int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name, 126 u32 result); 127 128 int nfc_dev_up(struct nfc_dev *dev); 129 130 int nfc_dev_down(struct nfc_dev *dev); 131 132 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); 133 134 int nfc_stop_poll(struct nfc_dev *dev); 135 136 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); 137 138 int nfc_dep_link_down(struct nfc_dev *dev); 139 140 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); 141 142 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode); 143 144 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, 145 data_exchange_cb_t cb, void *cb_context); 146 147 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx); 148 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx); 149 150 #endif /* __LOCAL_NFC_H */ 151