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1/*
2 * Copyright (C) 2011 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, write to the
16 * Free Software Foundation, Inc.,
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20#ifndef __NET_HCI_H
21#define __NET_HCI_H
22
23#include <linux/skbuff.h>
24
25#include <net/nfc/nfc.h>
26
27struct nfc_hci_dev;
28
29struct nfc_hci_ops {
30 int (*open) (struct nfc_hci_dev *hdev);
31 void (*close) (struct nfc_hci_dev *hdev);
32 int (*hci_ready) (struct nfc_hci_dev *hdev);
33 int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
34 int (*start_poll) (struct nfc_hci_dev *hdev, u32 protocols);
35 int (*target_from_gate) (struct nfc_hci_dev *hdev, u8 gate,
36 struct nfc_target *target);
37 int (*complete_target_discovered) (struct nfc_hci_dev *hdev, u8 gate,
38 struct nfc_target *target);
39 int (*data_exchange) (struct nfc_hci_dev *hdev,
40 struct nfc_target *target,
41 struct sk_buff *skb, struct sk_buff **res_skb);
42 int (*check_presence)(struct nfc_hci_dev *hdev,
43 struct nfc_target *target);
44};
45
46#define NFC_HCI_MAX_CUSTOM_GATES 15
47struct nfc_hci_init_data {
48 u8 gate_count;
49 u8 gates[NFC_HCI_MAX_CUSTOM_GATES];
50 char session_id[9];
51};
52
53typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
54
55#define NFC_HCI_MAX_GATES 256
56
57struct nfc_hci_dev {
58 struct nfc_dev *ndev;
59
60 u32 max_data_link_payload;
61
62 struct mutex msg_tx_mutex;
63
64 struct list_head msg_tx_queue;
65
66 struct workqueue_struct *msg_tx_wq;
67 struct work_struct msg_tx_work;
68
69 struct timer_list cmd_timer;
70 struct hci_msg *cmd_pending_msg;
71
72 struct sk_buff_head rx_hcp_frags;
73
74 struct workqueue_struct *msg_rx_wq;
75 struct work_struct msg_rx_work;
76
77 struct sk_buff_head msg_rx_queue;
78
79 struct nfc_hci_ops *ops;
80
81 struct nfc_hci_init_data init_data;
82
83 void *clientdata;
84
85 u8 gate2pipe[NFC_HCI_MAX_GATES];
86
87 u8 sw_romlib;
88 u8 sw_patch;
89 u8 sw_flashlib_major;
90 u8 sw_flashlib_minor;
91
92 u8 hw_derivative;
93 u8 hw_version;
94 u8 hw_mpw;
95 u8 hw_software;
96 u8 hw_bsid;
97};
98
99/* hci device allocation */
100struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
101 struct nfc_hci_init_data *init_data,
102 u32 protocols,
103 int tx_headroom,
104 int tx_tailroom,
105 int max_link_payload);
106void nfc_hci_free_device(struct nfc_hci_dev *hdev);
107
108int nfc_hci_register_device(struct nfc_hci_dev *hdev);
109void nfc_hci_unregister_device(struct nfc_hci_dev *hdev);
110
111void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata);
112void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev);
113
114/* Host IDs */
115#define NFC_HCI_HOST_CONTROLLER_ID 0x00
116#define NFC_HCI_TERMINAL_HOST_ID 0x01
117#define NFC_HCI_UICC_HOST_ID 0x02
118
119/* Host Controller Gates and registry indexes */
120#define NFC_HCI_ADMIN_GATE 0x00
121#define NFC_HCI_ADMIN_SESSION_IDENTITY 0x01
122#define NFC_HCI_ADMIN_MAX_PIPE 0x02
123#define NFC_HCI_ADMIN_WHITELIST 0x03
124#define NFC_HCI_ADMIN_HOST_LIST 0x04
125
126#define NFC_HCI_LOOPBACK_GATE 0x04
127
128#define NFC_HCI_ID_MGMT_GATE 0x05
129#define NFC_HCI_ID_MGMT_VERSION_SW 0x01
130#define NFC_HCI_ID_MGMT_VERSION_HW 0x03
131#define NFC_HCI_ID_MGMT_VENDOR_NAME 0x04
132#define NFC_HCI_ID_MGMT_MODEL_ID 0x05
133#define NFC_HCI_ID_MGMT_HCI_VERSION 0x02
134#define NFC_HCI_ID_MGMT_GATES_LIST 0x06
135
136#define NFC_HCI_LINK_MGMT_GATE 0x06
137#define NFC_HCI_LINK_MGMT_REC_ERROR 0x01
138
139#define NFC_HCI_RF_READER_B_GATE 0x11
140#define NFC_HCI_RF_READER_B_PUPI 0x03
141#define NFC_HCI_RF_READER_B_APPLICATION_DATA 0x04
142#define NFC_HCI_RF_READER_B_AFI 0x02
143#define NFC_HCI_RF_READER_B_HIGHER_LAYER_RESPONSE 0x01
144#define NFC_HCI_RF_READER_B_HIGHER_LAYER_DATA 0x05
145
146#define NFC_HCI_RF_READER_A_GATE 0x13
147#define NFC_HCI_RF_READER_A_UID 0x02
148#define NFC_HCI_RF_READER_A_ATQA 0x04
149#define NFC_HCI_RF_READER_A_APPLICATION_DATA 0x05
150#define NFC_HCI_RF_READER_A_SAK 0x03
151#define NFC_HCI_RF_READER_A_FWI_SFGT 0x06
152#define NFC_HCI_RF_READER_A_DATARATE_MAX 0x01
153
154#define NFC_HCI_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
155#define NFC_HCI_TYPE_A_SEL_PROT_MIFARE 0
156#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443 1
157#define NFC_HCI_TYPE_A_SEL_PROT_DEP 2
158#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP 3
159
160/* Generic events */
161#define NFC_HCI_EVT_HCI_END_OF_OPERATION 0x01
162#define NFC_HCI_EVT_POST_DATA 0x02
163#define NFC_HCI_EVT_HOT_PLUG 0x03
164
165/* Reader RF gates events */
166#define NFC_HCI_EVT_READER_REQUESTED 0x10
167#define NFC_HCI_EVT_END_OPERATION 0x11
168
169/* Reader Application gate events */
170#define NFC_HCI_EVT_TARGET_DISCOVERED 0x10
171
172/* receiving messages from lower layer */
173void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result,
174 struct sk_buff *skb);
175void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
176 struct sk_buff *skb);
177void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
178 struct sk_buff *skb);
179void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb);
180
181/* connecting to gates and sending hci instructions */
182int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate);
183int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate);
184int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev);
185int nfc_hci_get_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
186 struct sk_buff **skb);
187int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
188 const u8 *param, size_t param_len);
189int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
190 const u8 *param, size_t param_len, struct sk_buff **skb);
191int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
192 const u8 *param, size_t param_len);
193int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
194 const u8 *param, size_t param_len);
195
196#endif /* __NET_HCI_H */