1/*
2 * Copyright (C) 2012  Intel Corporation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef __LOCAL_HCI_H
19#define __LOCAL_HCI_H
20
21#include <net/nfc/hci.h>
22
23struct gate_pipe_map {
24	u8 gate;
25	u8 pipe;
26};
27
28struct hcp_message {
29	u8 header;		/* type -cmd,evt,rsp- + instruction */
30	u8 data[];
31} __packed;
32
33struct hcp_packet {
34	u8 header;		/* cbit+pipe */
35	struct hcp_message message;
36} __packed;
37
38struct hcp_exec_waiter {
39	wait_queue_head_t *wq;
40	bool exec_complete;
41	int exec_result;
42	struct sk_buff *result_skb;
43};
44
45struct hci_msg {
46	struct list_head msg_l;
47	struct sk_buff_head msg_frags;
48	bool wait_response;
49	data_exchange_cb_t cb;
50	void *cb_context;
51	unsigned long completion_delay;
52};
53
54struct hci_create_pipe_params {
55	u8 src_gate;
56	u8 dest_host;
57	u8 dest_gate;
58} __packed;
59
60struct hci_create_pipe_resp {
61	u8 src_host;
62	u8 src_gate;
63	u8 dest_host;
64	u8 dest_gate;
65	u8 pipe;
66} __packed;
67
68struct hci_delete_pipe_noti {
69	u8 pipe;
70} __packed;
71
72struct hci_all_pipe_cleared_noti {
73	u8 host;
74} __packed;
75
76#define NFC_HCI_FRAGMENT	0x7f
77
78#define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
79#define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
80#define HCP_MSG_GET_CMD(header) (header & 0x3f)
81
82int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
83			   u8 type, u8 instruction,
84			   const u8 *payload, size_t payload_len,
85			   data_exchange_cb_t cb, void *cb_context,
86			   unsigned long completion_delay);
87
88void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
89			    u8 instruction, struct sk_buff *skb);
90
91/* HCP headers */
92#define NFC_HCI_HCP_PACKET_HEADER_LEN	1
93#define NFC_HCI_HCP_MESSAGE_HEADER_LEN	1
94#define NFC_HCI_HCP_HEADER_LEN		2
95
96/* HCP types */
97#define NFC_HCI_HCP_COMMAND	0x00
98#define NFC_HCI_HCP_EVENT	0x01
99#define NFC_HCI_HCP_RESPONSE	0x02
100
101/* Generic commands */
102#define NFC_HCI_ANY_SET_PARAMETER	0x01
103#define NFC_HCI_ANY_GET_PARAMETER	0x02
104#define NFC_HCI_ANY_OPEN_PIPE		0x03
105#define NFC_HCI_ANY_CLOSE_PIPE		0x04
106
107/* Reader RF commands */
108#define NFC_HCI_WR_XCHG_DATA		0x10
109
110/* Admin commands */
111#define NFC_HCI_ADM_CREATE_PIPE			0x10
112#define NFC_HCI_ADM_DELETE_PIPE			0x11
113#define NFC_HCI_ADM_NOTIFY_PIPE_CREATED		0x12
114#define NFC_HCI_ADM_NOTIFY_PIPE_DELETED		0x13
115#define NFC_HCI_ADM_CLEAR_ALL_PIPE		0x14
116#define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED	0x15
117
118/* Generic responses */
119#define NFC_HCI_ANY_OK				0x00
120#define NFC_HCI_ANY_E_NOT_CONNECTED		0x01
121#define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN		0x02
122#define NFC_HCI_ANY_E_NOK			0x03
123#define NFC_HCI_ANY_E_PIPES_FULL		0x04
124#define NFC_HCI_ANY_E_REG_PAR_UNKNOWN		0x05
125#define NFC_HCI_ANY_E_PIPE_NOT_OPENED		0x06
126#define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED		0x07
127#define NFC_HCI_ANY_E_INHIBITED			0x08
128#define NFC_HCI_ANY_E_TIMEOUT			0x09
129#define NFC_HCI_ANY_E_REG_ACCESS_DENIED		0x0a
130#define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED	0x0b
131
132#endif /* __LOCAL_HCI_H */
133