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, const 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 nfc_llcp_local_put(struct nfc_llcp_local *local); 56 int __init nfc_llcp_init(void); 57 void nfc_llcp_exit(void); 58 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp); 59 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head); 60 61 int __init rawsock_init(void); 62 void rawsock_exit(void); 63 64 int __init af_nfc_init(void); 65 void af_nfc_exit(void); 66 int nfc_proto_register(const struct nfc_protocol *nfc_proto); 67 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); 68 69 extern int nfc_devlist_generation; 70 extern struct mutex nfc_devlist_mutex; 71 72 int __init nfc_genl_init(void); 73 void nfc_genl_exit(void); 74 75 void nfc_genl_data_init(struct nfc_genl_data *genl_data); 76 void nfc_genl_data_exit(struct nfc_genl_data *genl_data); 77 78 int nfc_genl_targets_found(struct nfc_dev *dev); 79 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx); 80 81 int nfc_genl_device_added(struct nfc_dev *dev); 82 int nfc_genl_device_removed(struct nfc_dev *dev); 83 84 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, 85 u8 comm_mode, u8 rf_mode); 86 int nfc_genl_dep_link_down_event(struct nfc_dev *dev); 87 88 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); 89 int nfc_genl_tm_deactivated(struct nfc_dev *dev); 90 91 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list); 92 93 int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type); 94 int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx); 95 int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx, 96 struct nfc_evt_transaction *evt_transaction); 97 int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx); 98 99 struct nfc_dev *nfc_get_device(unsigned int idx); 100 101 static inline void nfc_put_device(struct nfc_dev *dev) 102 { 103 put_device(&dev->dev); 104 } 105 106 static inline void nfc_device_iter_init(struct class_dev_iter *iter) 107 { 108 class_dev_iter_init(iter, &nfc_class, NULL, NULL); 109 } 110 111 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) 112 { 113 struct device *d = class_dev_iter_next(iter); 114 if (!d) 115 return NULL; 116 117 return to_nfc_dev(d); 118 } 119 120 static inline void nfc_device_iter_exit(struct class_dev_iter *iter) 121 { 122 class_dev_iter_exit(iter); 123 } 124 125 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name); 126 int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name, 127 u32 result); 128 129 int nfc_dev_up(struct nfc_dev *dev); 130 131 int nfc_dev_down(struct nfc_dev *dev); 132 133 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); 134 135 int nfc_stop_poll(struct nfc_dev *dev); 136 137 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); 138 139 int nfc_dep_link_down(struct nfc_dev *dev); 140 141 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); 142 143 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode); 144 145 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, 146 data_exchange_cb_t cb, void *cb_context); 147 148 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx); 149 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx); 150 151 #endif /* __LOCAL_NFC_H */ 152