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 22 #include "st21nfca_dep.h" 23 #include "st21nfca_se.h" 24 25 #define HCI_MODE 0 26 27 /* framing in HCI mode */ 28 #define ST21NFCA_SOF_EOF_LEN 2 29 30 /* Almost every time value is 0 */ 31 #define ST21NFCA_HCI_LLC_LEN 1 32 33 /* Size in worst case : 34 * In normal case CRC len = 2 but byte stuffing 35 * may appear in case one CRC byte = ST21NFCA_SOF_EOF 36 */ 37 #define ST21NFCA_HCI_LLC_CRC 4 38 39 #define ST21NFCA_HCI_LLC_LEN_CRC (ST21NFCA_SOF_EOF_LEN + \ 40 ST21NFCA_HCI_LLC_LEN + \ 41 ST21NFCA_HCI_LLC_CRC) 42 #define ST21NFCA_HCI_LLC_MIN_SIZE (1 + ST21NFCA_HCI_LLC_LEN_CRC) 43 44 /* Worst case when adding byte stuffing between each byte */ 45 #define ST21NFCA_HCI_LLC_MAX_PAYLOAD 29 46 #define ST21NFCA_HCI_LLC_MAX_SIZE (ST21NFCA_HCI_LLC_LEN_CRC + 1 + \ 47 ST21NFCA_HCI_LLC_MAX_PAYLOAD) 48 49 #define DRIVER_DESC "HCI NFC driver for ST21NFCA" 50 51 #define ST21NFCA_HCI_MODE 0 52 53 #define ST21NFCA_NUM_DEVICES 256 54 55 struct st21nfca_se_status { 56 bool is_ese_present; 57 bool is_uicc_present; 58 }; 59 60 int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, 61 char *llc_name, int phy_headroom, int phy_tailroom, 62 int phy_payload, struct nfc_hci_dev **hdev, 63 struct st21nfca_se_status *se_status); 64 void st21nfca_hci_remove(struct nfc_hci_dev *hdev); 65 66 enum st21nfca_state { 67 ST21NFCA_ST_COLD, 68 ST21NFCA_ST_READY, 69 }; 70 71 struct st21nfca_hci_info { 72 struct nfc_phy_ops *phy_ops; 73 void *phy_id; 74 75 struct nfc_hci_dev *hdev; 76 struct st21nfca_se_status *se_status; 77 78 enum st21nfca_state state; 79 80 struct mutex info_lock; 81 82 int async_cb_type; 83 data_exchange_cb_t async_cb; 84 void *async_cb_context; 85 86 struct st21nfca_dep_info dep_info; 87 struct st21nfca_se_info se_info; 88 }; 89 90 /* Reader RF commands */ 91 #define ST21NFCA_WR_XCHG_DATA 0x10 92 93 #define ST21NFCA_DEVICE_MGNT_GATE 0x01 94 #define ST21NFCA_RF_READER_F_GATE 0x14 95 #define ST21NFCA_RF_CARD_F_GATE 0x24 96 #define ST21NFCA_APDU_READER_GATE 0xf0 97 #define ST21NFCA_CONNECTIVITY_GATE 0x41 98 99 #endif /* __LOCAL_ST21NFCA_H_ */ 100