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authorEric Lapuyade <eric.lapuyade@intel.com>2012-04-10 13:43:06 -0400
committerJohn W. Linville <linville@tuxdriver.com>2012-04-12 15:10:34 -0400
commit8b8d2e08bf0d50193931afd27482a59376b66b2b (patch)
tree7752d914ca7d89f2f2c00159bb718a53d9980139 /include/net/nfc
parente1da0efa2ee71df957b280bcfa41f82ce6986a1d (diff)
NFC: HCI support
This is an implementation of ETSI TS 102 622 specification. Many NFC chipsets use HCI as the host <-> target protocol on top of a serial link like i2c. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net/nfc')
-rw-r--r--include/net/nfc/hci.h198
-rw-r--r--include/net/nfc/nfc.h1
2 files changed, 199 insertions, 0 deletions
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
new file mode 100644
index 000000000000..aca65a5a9d0d
--- /dev/null
+++ b/include/net/nfc/hci.h
@@ -0,0 +1,198 @@
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};
43
44#define NFC_HCI_MAX_CUSTOM_GATES 15
45struct nfc_hci_init_data {
46 u8 gate_count;
47 u8 gates[NFC_HCI_MAX_CUSTOM_GATES];
48 char session_id[9];
49};
50
51typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
52
53#define NFC_HCI_MAX_GATES 256
54
55struct nfc_hci_dev {
56 struct nfc_dev *ndev;
57
58 u32 max_data_link_payload;
59
60 struct mutex msg_tx_mutex;
61
62 struct list_head msg_tx_queue;
63
64 struct workqueue_struct *msg_tx_wq;
65 struct work_struct msg_tx_work;
66
67 struct timer_list cmd_timer;
68 struct hci_msg *cmd_pending_msg;
69
70 struct sk_buff_head rx_hcp_frags;
71
72 struct workqueue_struct *msg_rx_wq;
73 struct work_struct msg_rx_work;
74
75 struct sk_buff_head msg_rx_queue;
76
77 struct nfc_hci_ops *ops;
78
79 struct nfc_hci_init_data init_data;
80
81 void *clientdata;
82
83 u8 gate2pipe[NFC_HCI_MAX_GATES];
84
85 bool poll_started;
86 struct nfc_target *targets;
87 int target_count;
88
89 u8 sw_romlib;
90 u8 sw_patch;
91 u8 sw_flashlib_major;
92 u8 sw_flashlib_minor;
93
94 u8 hw_derivative;
95 u8 hw_version;
96 u8 hw_mpw;
97 u8 hw_software;
98 u8 hw_bsid;
99};
100
101/* hci device allocation */
102struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
103 struct nfc_hci_init_data *init_data,
104 u32 protocols,
105 int tx_headroom,
106 int tx_tailroom,
107 int max_link_payload);
108void nfc_hci_free_device(struct nfc_hci_dev *hdev);
109
110int nfc_hci_register_device(struct nfc_hci_dev *hdev);
111void nfc_hci_unregister_device(struct nfc_hci_dev *hdev);
112
113void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata);
114void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev);
115
116/* Host IDs */
117#define NFC_HCI_HOST_CONTROLLER_ID 0x00
118#define NFC_HCI_TERMINAL_HOST_ID 0x01
119#define NFC_HCI_UICC_HOST_ID 0x02
120
121/* Host Controller Gates and registry indexes */
122#define NFC_HCI_ADMIN_GATE 0x00
123#define NFC_HCI_ADMIN_SESSION_IDENTITY 0x01
124#define NFC_HCI_ADMIN_MAX_PIPE 0x02
125#define NFC_HCI_ADMIN_WHITELIST 0x03
126#define NFC_HCI_ADMIN_HOST_LIST 0x04
127
128#define NFC_HCI_LOOPBACK_GATE 0x04
129
130#define NFC_HCI_ID_MGMT_GATE 0x05
131#define NFC_HCI_ID_MGMT_VERSION_SW 0x01
132#define NFC_HCI_ID_MGMT_VERSION_HW 0x03
133#define NFC_HCI_ID_MGMT_VENDOR_NAME 0x04
134#define NFC_HCI_ID_MGMT_MODEL_ID 0x05
135#define NFC_HCI_ID_MGMT_HCI_VERSION 0x02
136#define NFC_HCI_ID_MGMT_GATES_LIST 0x06
137
138#define NFC_HCI_LINK_MGMT_GATE 0x06
139#define NFC_HCI_LINK_MGMT_REC_ERROR 0x01
140
141#define NFC_HCI_RF_READER_B_GATE 0x11
142#define NFC_HCI_RF_READER_B_PUPI 0x03
143#define NFC_HCI_RF_READER_B_APPLICATION_DATA 0x04
144#define NFC_HCI_RF_READER_B_AFI 0x02
145#define NFC_HCI_RF_READER_B_HIGHER_LAYER_RESPONSE 0x01
146#define NFC_HCI_RF_READER_B_HIGHER_LAYER_DATA 0x05
147
148#define NFC_HCI_RF_READER_A_GATE 0x13
149#define NFC_HCI_RF_READER_A_UID 0x02
150#define NFC_HCI_RF_READER_A_ATQA 0x04
151#define NFC_HCI_RF_READER_A_APPLICATION_DATA 0x05
152#define NFC_HCI_RF_READER_A_SAK 0x03
153#define NFC_HCI_RF_READER_A_FWI_SFGT 0x06
154#define NFC_HCI_RF_READER_A_DATARATE_MAX 0x01
155
156#define NFC_HCI_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
157#define NFC_HCI_TYPE_A_SEL_PROT_MIFARE 0
158#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443 1
159#define NFC_HCI_TYPE_A_SEL_PROT_DEP 2
160#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP 3
161
162/* Generic events */
163#define NFC_HCI_EVT_HCI_END_OF_OPERATION 0x01
164#define NFC_HCI_EVT_POST_DATA 0x02
165#define NFC_HCI_EVT_HOT_PLUG 0x03
166
167/* Reader RF gates events */
168#define NFC_HCI_EVT_READER_REQUESTED 0x10
169#define NFC_HCI_EVT_END_OPERATION 0x11
170
171/* Reader Application gate events */
172#define NFC_HCI_EVT_TARGET_DISCOVERED 0x10
173
174/* receiving messages from lower layer */
175void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result,
176 struct sk_buff *skb);
177void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
178 struct sk_buff *skb);
179void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
180 struct sk_buff *skb);
181void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb);
182
183/* connecting to gates and sending hci instructions */
184int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate);
185int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate);
186int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev);
187int nfc_hci_get_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
188 struct sk_buff **skb);
189int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
190 const u8 *param, size_t param_len);
191int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
192 const u8 *param, size_t param_len, struct sk_buff **skb);
193int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
194 const u8 *param, size_t param_len);
195int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
196 const u8 *param, size_t param_len);
197
198#endif /* __NET_HCI_H */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 57ea09533ae1..431a6c59b418 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -78,6 +78,7 @@ struct nfc_target {
78 u8 sensb_res[NFC_SENSB_RES_MAXSIZE]; 78 u8 sensb_res[NFC_SENSB_RES_MAXSIZE];
79 u8 sensf_res_len; 79 u8 sensf_res_len;
80 u8 sensf_res[NFC_SENSF_RES_MAXSIZE]; 80 u8 sensf_res[NFC_SENSF_RES_MAXSIZE];
81 u8 hci_reader_gate;
81}; 82};
82 83
83struct nfc_genl_data { 84struct nfc_genl_data {
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-26 12:45:24 -0500