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
11struct gate_pipe_map {
12 u8 gate;
13 u8 pipe;
14};
15
16struct hcp_message {
17 u8 header; /* type -cmd,evt,rsp- + instruction */
18 u8 data[];
19} __packed;
20
21struct hcp_packet {
22 u8 header; /* cbit+pipe */
23 struct hcp_message message;
24} __packed;
25
26struct 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
33struct 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
42struct hci_create_pipe_params {
43 u8 src_gate;
44 u8 dest_host;
45 u8 dest_gate;
46} __packed;
47
48struct 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
56struct hci_delete_pipe_noti {
57 u8 pipe;
58} __packed;
59
60struct 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
70int 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
76void 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

source code of linux/net/nfc/hci/hci.h