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35630df6 CR |
1 | /* |
2 | * NCI based Driver for STMicroelectronics NFC Chip | |
3 | * | |
4 | * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
ed06aeef CR |
19 | #ifndef __LOCAL_ST_NCI_H_ |
20 | #define __LOCAL_ST_NCI_H_ | |
35630df6 | 21 | |
35630df6 CR |
22 | #include "ndlc.h" |
23 | ||
24 | /* Define private flags: */ | |
ed06aeef | 25 | #define ST_NCI_RUNNING 1 |
35630df6 | 26 | |
ed06aeef CR |
27 | #define ST_NCI_CORE_PROP 0x01 |
28 | #define ST_NCI_SET_NFC_MODE 0x02 | |
41fc2f50 | 29 | |
f5876627 CR |
30 | /* |
31 | * ref ISO7816-3 chap 8.1. the initial character TS is followed by a | |
32 | * sequence of at most 32 characters. | |
33 | */ | |
34 | #define ST_NCI_ESE_MAX_LENGTH 33 | |
35 | #define ST_NCI_HCI_HOST_ID_ESE 0xc0 | |
36 | ||
b1fa4dc4 CR |
37 | #define ST_NCI_DEVICE_MGNT_GATE 0x01 |
38 | ||
39 | #define ST_NCI_VENDOR_OUI 0x0080E1 /* STMicroelectronics */ | |
40 | #define ST_NCI_FACTORY_MODE 2 | |
41 | ||
41fc2f50 CR |
42 | struct nci_mode_set_cmd { |
43 | u8 cmd_type; | |
44 | u8 mode; | |
45 | } __packed; | |
dbd70b40 CR |
46 | |
47 | struct nci_mode_set_rsp { | |
48 | u8 status; | |
49 | } __packed; | |
50 | ||
f5876627 CR |
51 | struct st_nci_se_info { |
52 | u8 atr[ST_NCI_ESE_MAX_LENGTH]; | |
53 | struct completion req_completion; | |
54 | ||
55 | struct timer_list bwi_timer; | |
56 | int wt_timeout; /* in msecs */ | |
57 | bool bwi_active; | |
58 | ||
59 | struct timer_list se_active_timer; | |
60 | bool se_active; | |
61 | ||
62 | bool xch_error; | |
63 | ||
64 | se_io_cb_t cb; | |
65 | void *cb_context; | |
66 | }; | |
67 | ||
b1fa4dc4 CR |
68 | /** |
69 | * enum nfc_vendor_cmds - supported nfc vendor commands | |
70 | * | |
71 | * @FACTORY_MODE: Allow to set the driver into a mode where no secure element | |
72 | * are activated. It does not consider any NFC_ATTR_VENDOR_DATA. | |
73 | * @HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes command. | |
74 | * It does not consider any NFC_ATTR_VENDOR_DATA. | |
75 | * @HCI_DM_PUT_DATA: Allow to configure specific CLF registry as for example | |
76 | * RF trimmings or low level drivers configurations (I2C, SPI, SWP). | |
77 | * @HCI_DM_UPDATE_AID: Allow to configure an AID routing into the CLF routing | |
78 | * table following RF technology, CLF mode or protocol. | |
79 | * @HCI_DM_GET_INFO: Allow to retrieve CLF information. | |
80 | * @HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as low | |
81 | * level drivers configurations or RF trimmings. | |
82 | * @HCI_DM_DIRECT_LOAD: Allow to load a firmware into the CLF. A complete | |
83 | * packet can be more than 8KB. | |
84 | * @HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF | |
85 | * configuration changes without CLF power off. | |
86 | * @HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example the | |
87 | * white list). | |
88 | * @HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF | |
89 | * technology. When using this command to anti-collision is done. | |
90 | * @HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF | |
91 | * connectivity. | |
92 | * @HCI_DM_VDC_MEASUREMENT_VALUE: Allow to measure the field applied on the | |
93 | * CLF antenna. A value between 0 and 0x0f is returned. 0 is maximum. | |
94 | * @HCI_DM_FWUPD_START: Allow to put CLF into firmware update mode. It is a | |
95 | * specific CLF command as there is no GPIO for this. | |
96 | * @HCI_DM_FWUPD_END: Allow to complete firmware update. | |
97 | * @HCI_DM_VDC_VALUE_COMPARISON: Allow to compare the field applied on the | |
98 | * CLF antenna to a reference value. | |
99 | * @MANUFACTURER_SPECIFIC: Allow to retrieve manufacturer specific data | |
100 | * received during a NCI_CORE_INIT_CMD. | |
101 | */ | |
102 | enum nfc_vendor_cmds { | |
103 | FACTORY_MODE, | |
104 | HCI_CLEAR_ALL_PIPES, | |
105 | HCI_DM_PUT_DATA, | |
106 | HCI_DM_UPDATE_AID, | |
107 | HCI_DM_GET_INFO, | |
108 | HCI_DM_GET_DATA, | |
109 | HCI_DM_DIRECT_LOAD, | |
110 | HCI_DM_RESET, | |
111 | HCI_GET_PARAM, | |
112 | HCI_DM_FIELD_GENERATOR, | |
113 | HCI_LOOPBACK, | |
114 | HCI_DM_FWUPD_START, | |
115 | HCI_DM_FWUPD_END, | |
116 | HCI_DM_VDC_MEASUREMENT_VALUE, | |
117 | HCI_DM_VDC_VALUE_COMPARISON, | |
118 | MANUFACTURER_SPECIFIC, | |
119 | }; | |
120 | ||
121 | struct st_nci_vendor_info { | |
122 | struct completion req_completion; | |
123 | struct sk_buff *rx_skb; | |
124 | }; | |
125 | ||
ed06aeef | 126 | struct st_nci_info { |
35630df6 CR |
127 | struct llt_ndlc *ndlc; |
128 | unsigned long flags; | |
ed06aeef | 129 | struct st_nci_se_info se_info; |
b1fa4dc4 | 130 | struct st_nci_vendor_info vendor_info; |
35630df6 CR |
131 | }; |
132 | ||
ed06aeef CR |
133 | void st_nci_remove(struct nci_dev *ndev); |
134 | int st_nci_probe(struct llt_ndlc *ndlc, int phy_headroom, | |
35630df6 CR |
135 | int phy_tailroom); |
136 | ||
f5876627 CR |
137 | int st_nci_se_init(struct nci_dev *ndev); |
138 | void st_nci_se_deinit(struct nci_dev *ndev); | |
139 | ||
140 | int st_nci_discover_se(struct nci_dev *ndev); | |
141 | int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx); | |
142 | int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx); | |
143 | int st_nci_se_io(struct nci_dev *ndev, u32 se_idx, | |
144 | u8 *apdu, size_t apdu_length, | |
145 | se_io_cb_t cb, void *cb_context); | |
146 | int st_nci_hci_load_session(struct nci_dev *ndev); | |
147 | void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe, | |
148 | u8 event, struct sk_buff *skb); | |
149 | void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd, | |
150 | struct sk_buff *skb); | |
151 | ||
b1fa4dc4 CR |
152 | void st_nci_hci_loopback_event_received(struct nci_dev *ndev, u8 event, |
153 | struct sk_buff *skb); | |
154 | int st_nci_vendor_cmds_init(struct nci_dev *ndev); | |
155 | ||
ed06aeef | 156 | #endif /* __LOCAL_ST_NCI_H_ */ |