CHIP-linux-libre/drivers/nfc/st-nci/st-nci_se.h

/*
 * Secure Element Driver for STMicroelectronics NFC NCI Chip
 *
 * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __LOCAL_ST_NCI_SE_H_
#define __LOCAL_ST_NCI_SE_H_

/*
 * ref ISO7816-3 chap 8.1. the initial character TS is followed by a
 * sequence of at most 32 characters.
 */
#define ST_NCI_ESE_MAX_LENGTH	33
#define ST_NCI_HCI_HOST_ID_ESE	0xc0

struct st_nci_se_info {
	u8 atr[ST_NCI_ESE_MAX_LENGTH];
	struct completion req_completion;

	struct timer_list bwi_timer;
	int wt_timeout; /* in msecs */
	bool bwi_active;

	struct timer_list se_active_timer;
	bool se_active;

	bool xch_error;

	se_io_cb_t cb;
	void *cb_context;
};

int st_nci_se_init(struct nci_dev *ndev);
void st_nci_se_deinit(struct nci_dev *ndev);

int st_nci_discover_se(struct nci_dev *ndev);
int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx);
int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx);
int st_nci_se_io(struct nci_dev *ndev, u32 se_idx,
		u8 *apdu, size_t apdu_length,
		se_io_cb_t cb, void *cb_context);
int st_nci_hci_load_session(struct nci_dev *ndev);
void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
			u8 event, struct sk_buff *skb);
void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
			struct sk_buff *skb);


#endif /* __LOCAL_ST_NCI_SE_H_ */