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Linux/net/nfc/hci/hci.h

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  1 /* SPDX-License-Identifier: GPL-2.0-or-later */
  2 /*
  3  * Copyright (C) 2012  Intel Corporation. All rights reserved.
  4  */
  5 
  6 #ifndef __LOCAL_HCI_H
  7 #define __LOCAL_HCI_H
  8 
  9 #include <net/nfc/hci.h>
 10 
 11 struct gate_pipe_map {
 12         u8 gate;
 13         u8 pipe;
 14 };
 15 
 16 struct hcp_message {
 17         u8 header;              /* type -cmd,evt,rsp- + instruction */
 18         u8 data[];
 19 } __packed;
 20 
 21 struct hcp_packet {
 22         u8 header;              /* cbit+pipe */
 23         struct hcp_message message;
 24 } __packed;
 25 
 26 struct hcp_exec_waiter {
 27         wait_queue_head_t *wq;
 28         bool exec_complete;
 29         int exec_result;
 30         struct sk_buff *result_skb;
 31 };
 32 
 33 struct hci_msg {
 34         struct list_head msg_l;
 35         struct sk_buff_head msg_frags;
 36         bool wait_response;
 37         data_exchange_cb_t cb;
 38         void *cb_context;
 39         unsigned long completion_delay;
 40 };
 41 
 42 struct hci_create_pipe_params {
 43         u8 src_gate;
 44         u8 dest_host;
 45         u8 dest_gate;
 46 } __packed;
 47 
 48 struct hci_create_pipe_resp {
 49         u8 src_host;
 50         u8 src_gate;
 51         u8 dest_host;
 52         u8 dest_gate;
 53         u8 pipe;
 54 } __packed;
 55 
 56 struct hci_delete_pipe_noti {
 57         u8 pipe;
 58 } __packed;
 59 
 60 struct hci_all_pipe_cleared_noti {
 61         u8 host;
 62 } __packed;
 63 
 64 #define NFC_HCI_FRAGMENT        0x7f
 65 
 66 #define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
 67 #define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
 68 #define HCP_MSG_GET_CMD(header) (header & 0x3f)
 69 
 70 int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
 71                            u8 type, u8 instruction,
 72                            const u8 *payload, size_t payload_len,
 73                            data_exchange_cb_t cb, void *cb_context,
 74                            unsigned long completion_delay);
 75 
 76 void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
 77                             u8 instruction, struct sk_buff *skb);
 78 
 79 /* HCP headers */
 80 #define NFC_HCI_HCP_PACKET_HEADER_LEN   1
 81 #define NFC_HCI_HCP_MESSAGE_HEADER_LEN  1
 82 #define NFC_HCI_HCP_HEADER_LEN          2
 83 
 84 /* HCP types */
 85 #define NFC_HCI_HCP_COMMAND     0x00
 86 #define NFC_HCI_HCP_EVENT       0x01
 87 #define NFC_HCI_HCP_RESPONSE    0x02
 88 
 89 /* Generic commands */
 90 #define NFC_HCI_ANY_SET_PARAMETER       0x01
 91 #define NFC_HCI_ANY_GET_PARAMETER       0x02
 92 #define NFC_HCI_ANY_OPEN_PIPE           0x03
 93 #define NFC_HCI_ANY_CLOSE_PIPE          0x04
 94 
 95 /* Reader RF commands */
 96 #define NFC_HCI_WR_XCHG_DATA            0x10
 97 
 98 /* Admin commands */
 99 #define NFC_HCI_ADM_CREATE_PIPE                 0x10
100 #define NFC_HCI_ADM_DELETE_PIPE                 0x11
101 #define NFC_HCI_ADM_NOTIFY_PIPE_CREATED         0x12
102 #define NFC_HCI_ADM_NOTIFY_PIPE_DELETED         0x13
103 #define NFC_HCI_ADM_CLEAR_ALL_PIPE              0x14
104 #define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED     0x15
105 
106 /* Generic responses */
107 #define NFC_HCI_ANY_OK                          0x00
108 #define NFC_HCI_ANY_E_NOT_CONNECTED             0x01
109 #define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN           0x02
110 #define NFC_HCI_ANY_E_NOK                       0x03
111 #define NFC_HCI_ANY_E_PIPES_FULL                0x04
112 #define NFC_HCI_ANY_E_REG_PAR_UNKNOWN           0x05
113 #define NFC_HCI_ANY_E_PIPE_NOT_OPENED           0x06
114 #define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED         0x07
115 #define NFC_HCI_ANY_E_INHIBITED                 0x08
116 #define NFC_HCI_ANY_E_TIMEOUT                   0x09
117 #define NFC_HCI_ANY_E_REG_ACCESS_DENIED         0x0a
118 #define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED        0x0b
119 
120 #endif /* __LOCAL_HCI_H */
121 

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