drivers/nfc/st21nfca/st21nfca_se.h

   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 __ST21NFCA_SE_H
  18 #define __ST21NFCA_SE_H
  19
  20 #include <linux/skbuff.h>
  21 #include <linux/workqueue.h>
  22
  23 /*
  24  * ref ISO7816-3 chap 8.1. the initial character TS is followed by a
  25  * sequence of at most 32 characters.
  26  */
  27 #define ST21NFCA_ESE_MAX_LENGTH                 33
  28 #define ST21NFCA_ESE_HOST_ID                    0xc0
  29
  30 struct st21nfca_se_info {
  31         u8 atr[ST21NFCA_ESE_MAX_LENGTH];
  32         struct completion req_completion;
  33
  34         struct timer_list bwi_timer;
  35         int wt_timeout; /* in msecs */
  36         bool bwi_active;
  37
  38         struct timer_list se_active_timer;
  39         bool se_active;
  40         int expected_pipes;
  41         int count_pipes;
  42
  43         bool xch_error;
  44
  45         se_io_cb_t cb;
  46         void *cb_context;
  47 };
  48
  49 int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
  50                                         u8 event, struct sk_buff *skb);
  51 int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
  52                                         u8 event, struct sk_buff *skb);
  53
  54 int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev);
  55 int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx);
  56 int st21nfca_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx);
  57 int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
  58                 u8 *apdu, size_t apdu_length,
  59                 se_io_cb_t cb, void *cb_context);
  60
  61 void st21nfca_se_init(struct nfc_hci_dev *hdev);
  62 void st21nfca_se_deinit(struct nfc_hci_dev *hdev);
  63 #endif /* __ST21NFCA_SE_H */