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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