mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
1c54795da0
Align st21nfca driver with or nfc driver: - Remove st21nfca_ prefix - Merge st21nfca_se.h, st21nfca_dep.h in st21nfca.h Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
/*
|
|
* Copyright (C) 2014 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_ST21NFCA_H_
|
|
#define __LOCAL_ST21NFCA_H_
|
|
|
|
#include <net/nfc/hci.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
#define HCI_MODE 0
|
|
|
|
/* framing in HCI mode */
|
|
#define ST21NFCA_SOF_EOF_LEN 2
|
|
|
|
/* Almost every time value is 0 */
|
|
#define ST21NFCA_HCI_LLC_LEN 1
|
|
|
|
/* Size in worst case :
|
|
* In normal case CRC len = 2 but byte stuffing
|
|
* may appear in case one CRC byte = ST21NFCA_SOF_EOF
|
|
*/
|
|
#define ST21NFCA_HCI_LLC_CRC 4
|
|
|
|
#define ST21NFCA_HCI_LLC_LEN_CRC (ST21NFCA_SOF_EOF_LEN + \
|
|
ST21NFCA_HCI_LLC_LEN + \
|
|
ST21NFCA_HCI_LLC_CRC)
|
|
#define ST21NFCA_HCI_LLC_MIN_SIZE (1 + ST21NFCA_HCI_LLC_LEN_CRC)
|
|
|
|
/* Worst case when adding byte stuffing between each byte */
|
|
#define ST21NFCA_HCI_LLC_MAX_PAYLOAD 29
|
|
#define ST21NFCA_HCI_LLC_MAX_SIZE (ST21NFCA_HCI_LLC_LEN_CRC + 1 + \
|
|
ST21NFCA_HCI_LLC_MAX_PAYLOAD)
|
|
|
|
/* Reader RF commands */
|
|
#define ST21NFCA_WR_XCHG_DATA 0x10
|
|
|
|
#define ST21NFCA_DEVICE_MGNT_GATE 0x01
|
|
#define ST21NFCA_RF_READER_F_GATE 0x14
|
|
#define ST21NFCA_RF_CARD_F_GATE 0x24
|
|
#define ST21NFCA_APDU_READER_GATE 0xf0
|
|
#define ST21NFCA_CONNECTIVITY_GATE 0x41
|
|
|
|
/*
|
|
* ref ISO7816-3 chap 8.1. the initial character TS is followed by a
|
|
* sequence of at most 32 characters.
|
|
*/
|
|
#define ST21NFCA_ESE_MAX_LENGTH 33
|
|
#define ST21NFCA_ESE_HOST_ID 0xc0
|
|
|
|
#define DRIVER_DESC "HCI NFC driver for ST21NFCA"
|
|
|
|
#define ST21NFCA_HCI_MODE 0
|
|
#define ST21NFCA_NUM_DEVICES 256
|
|
|
|
struct st21nfca_se_status {
|
|
bool is_ese_present;
|
|
bool is_uicc_present;
|
|
};
|
|
|
|
enum st21nfca_state {
|
|
ST21NFCA_ST_COLD,
|
|
ST21NFCA_ST_READY,
|
|
};
|
|
|
|
struct st21nfca_dep_info {
|
|
struct sk_buff *tx_pending;
|
|
struct work_struct tx_work;
|
|
u8 curr_nfc_dep_pni;
|
|
u32 idx;
|
|
u8 to;
|
|
u8 did;
|
|
u8 bsi;
|
|
u8 bri;
|
|
u8 lri;
|
|
} __packed;
|
|
|
|
struct st21nfca_se_info {
|
|
u8 atr[ST21NFCA_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;
|
|
int expected_pipes;
|
|
int count_pipes;
|
|
|
|
bool xch_error;
|
|
|
|
se_io_cb_t cb;
|
|
void *cb_context;
|
|
};
|
|
|
|
struct st21nfca_hci_info {
|
|
struct nfc_phy_ops *phy_ops;
|
|
void *phy_id;
|
|
|
|
struct nfc_hci_dev *hdev;
|
|
struct st21nfca_se_status *se_status;
|
|
|
|
enum st21nfca_state state;
|
|
|
|
struct mutex info_lock;
|
|
|
|
int async_cb_type;
|
|
data_exchange_cb_t async_cb;
|
|
void *async_cb_context;
|
|
|
|
struct st21nfca_dep_info dep_info;
|
|
struct st21nfca_se_info se_info;
|
|
};
|
|
|
|
int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
|
|
char *llc_name, int phy_headroom, int phy_tailroom,
|
|
int phy_payload, struct nfc_hci_dev **hdev,
|
|
struct st21nfca_se_status *se_status);
|
|
void st21nfca_hci_remove(struct nfc_hci_dev *hdev);
|
|
|
|
int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
|
|
u8 event, struct sk_buff *skb);
|
|
int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb);
|
|
|
|
int st21nfca_im_send_atr_req(struct nfc_hci_dev *hdev, u8 *gb, size_t gb_len);
|
|
int st21nfca_im_send_dep_req(struct nfc_hci_dev *hdev, struct sk_buff *skb);
|
|
void st21nfca_dep_init(struct nfc_hci_dev *hdev);
|
|
void st21nfca_dep_deinit(struct nfc_hci_dev *hdev);
|
|
|
|
int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
|
|
u8 event, struct sk_buff *skb);
|
|
int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
|
|
u8 event, struct sk_buff *skb);
|
|
|
|
int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev);
|
|
int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx);
|
|
int st21nfca_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx);
|
|
int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
|
|
u8 *apdu, size_t apdu_length,
|
|
se_io_cb_t cb, void *cb_context);
|
|
|
|
void st21nfca_se_init(struct nfc_hci_dev *hdev);
|
|
void st21nfca_se_deinit(struct nfc_hci_dev *hdev);
|
|
|
|
#endif /* __LOCAL_ST21NFCA_H_ */
|