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68957303 CR |
1 | /* |
2 | * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #ifndef __LOCAL_ST21NFCA_H_ | |
18 | #define __LOCAL_ST21NFCA_H_ | |
19 | ||
20 | #include <net/nfc/hci.h> | |
21 | ||
1892bf84 CR |
22 | #include "st21nfca_dep.h" |
23 | ||
68957303 CR |
24 | #define HCI_MODE 0 |
25 | ||
26 | /* framing in HCI mode */ | |
27 | #define ST21NFCA_SOF_EOF_LEN 2 | |
28 | ||
29 | /* Almost every time value is 0 */ | |
30 | #define ST21NFCA_HCI_LLC_LEN 1 | |
31 | ||
32 | /* Size in worst case : | |
33 | * In normal case CRC len = 2 but byte stuffing | |
34 | * may appear in case one CRC byte = ST21NFCA_SOF_EOF | |
35 | */ | |
36 | #define ST21NFCA_HCI_LLC_CRC 4 | |
37 | ||
38 | #define ST21NFCA_HCI_LLC_LEN_CRC (ST21NFCA_SOF_EOF_LEN + \ | |
39 | ST21NFCA_HCI_LLC_LEN + \ | |
40 | ST21NFCA_HCI_LLC_CRC) | |
41 | #define ST21NFCA_HCI_LLC_MIN_SIZE (1 + ST21NFCA_HCI_LLC_LEN_CRC) | |
42 | ||
43 | /* Worst case when adding byte stuffing between each byte */ | |
44 | #define ST21NFCA_HCI_LLC_MAX_PAYLOAD 29 | |
45 | #define ST21NFCA_HCI_LLC_MAX_SIZE (ST21NFCA_HCI_LLC_LEN_CRC + 1 + \ | |
46 | ST21NFCA_HCI_LLC_MAX_PAYLOAD) | |
47 | ||
48 | #define DRIVER_DESC "HCI NFC driver for ST21NFCA" | |
49 | ||
50 | #define ST21NFCA_HCI_MODE 0 | |
51 | ||
52 | #define ST21NFCA_NUM_DEVICES 256 | |
53 | ||
54 | int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, | |
55 | char *llc_name, int phy_headroom, int phy_tailroom, | |
56 | int phy_payload, struct nfc_hci_dev **hdev); | |
57 | void st21nfca_hci_remove(struct nfc_hci_dev *hdev); | |
58 | ||
59 | enum st21nfca_state { | |
60 | ST21NFCA_ST_COLD, | |
61 | ST21NFCA_ST_READY, | |
62 | }; | |
63 | ||
64 | struct st21nfca_hci_info { | |
65 | struct nfc_phy_ops *phy_ops; | |
66 | void *phy_id; | |
67 | ||
68 | struct nfc_hci_dev *hdev; | |
69 | ||
70 | enum st21nfca_state state; | |
71 | ||
72 | struct mutex info_lock; | |
73 | ||
74 | int async_cb_type; | |
75 | data_exchange_cb_t async_cb; | |
76 | void *async_cb_context; | |
77 | ||
1892bf84 CR |
78 | struct st21nfca_dep_info dep_info; |
79 | }; | |
68957303 CR |
80 | |
81 | /* Reader RF commands */ | |
82 | #define ST21NFCA_WR_XCHG_DATA 0x10 | |
83 | ||
84 | #define ST21NFCA_RF_READER_F_GATE 0x14 | |
1892bf84 CR |
85 | |
86 | #define ST21NFCA_RF_CARD_F_GATE 0x24 | |
1892bf84 | 87 | |
68957303 | 88 | #endif /* __LOCAL_ST21NFCA_H_ */ |