212 lines
6.3 KiB
C
212 lines
6.3 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
|
||
|
|
|
||
|
|
#define ST21NFCA_VENDOR_OUI 0x0080E1 /* STMicroelectronics */
|
||
|
|
#define ST21NFCA_FACTORY_MODE 2
|
||
|
|
|
||
|
|
struct st21nfca_se_status {
|
||
|
|
bool is_ese_present;
|
||
|
|
bool is_uicc_present;
|
||
|
|
};
|
||
|
|
|
||
|
|
enum st21nfca_state {
|
||
|
|
ST21NFCA_ST_COLD,
|
||
|
|
ST21NFCA_ST_READY,
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* enum nfc_vendor_cmds - supported nfc vendor commands
|
||
|
|
*
|
||
|
|
* @FACTORY_MODE: Allow to set the driver into a mode where no secure element
|
||
|
|
* are activated. It does not consider any NFC_ATTR_VENDOR_DATA.
|
||
|
|
* @HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes command.
|
||
|
|
* It does not consider any NFC_ATTR_VENDOR_DATA.
|
||
|
|
* @HCI_DM_PUT_DATA: Allow to configure specific CLF registry as for example
|
||
|
|
* RF trimmings or low level drivers configurations (I2C, SPI, SWP).
|
||
|
|
* @HCI_DM_UPDATE_AID: Allow to configure an AID routing into the CLF routing
|
||
|
|
* table following RF technology, CLF mode or protocol.
|
||
|
|
* @HCI_DM_GET_INFO: Allow to retrieve CLF information.
|
||
|
|
* @HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as low
|
||
|
|
* level drivers configurations or RF trimmings.
|
||
|
|
* @HCI_DM_LOAD: Allow to load a firmware into the CLF. A complete
|
||
|
|
* packet can be more than 8KB.
|
||
|
|
* @HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF
|
||
|
|
* configuration changes without CLF power off.
|
||
|
|
* @HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example the
|
||
|
|
* white list).
|
||
|
|
* @HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF
|
||
|
|
* technology. When using this command to anti-collision is done.
|
||
|
|
* @HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF
|
||
|
|
* connectivity.
|
||
|
|
*/
|
||
|
|
enum nfc_vendor_cmds {
|
||
|
|
FACTORY_MODE,
|
||
|
|
HCI_CLEAR_ALL_PIPES,
|
||
|
|
HCI_DM_PUT_DATA,
|
||
|
|
HCI_DM_UPDATE_AID,
|
||
|
|
HCI_DM_GET_INFO,
|
||
|
|
HCI_DM_GET_DATA,
|
||
|
|
HCI_DM_LOAD,
|
||
|
|
HCI_DM_RESET,
|
||
|
|
HCI_GET_PARAM,
|
||
|
|
HCI_DM_FIELD_GENERATOR,
|
||
|
|
HCI_LOOPBACK,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct st21nfca_vendor_info {
|
||
|
|
struct completion req_completion;
|
||
|
|
struct sk_buff *rx_skb;
|
||
|
|
};
|
||
|
|
|
||
|
|
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;
|
||
|
|
struct st21nfca_vendor_info vendor_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);
|
||
|
|
|
||
|
|
int st21nfca_hci_loopback_event_received(struct nfc_hci_dev *ndev, u8 event,
|
||
|
|
struct sk_buff *skb);
|
||
|
|
int st21nfca_vendor_cmds_init(struct nfc_hci_dev *ndev);
|
||
|
|
|
||
|
|
#endif /* __LOCAL_ST21NFCA_H_ */
|