forked from Minki/linux
3648dc6d27
In order to align with st21nfca, dts configuration properties ese_present and uicc_present are made available in st-nci driver. So far, in early development firmware, because nci_nfcee_mode_set(DISABLE) was not supported we had to try to enable it during the secure element discovery phase. After several trials on commercial and qualified firmware it appears that nci_nfcee_mode_set(ENABLE) and nci_nfcee_mode_set(DISABLE) are properly supported. Such feature also help us to eventually save some time (~5ms) when only one secure element is connected. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
164 lines
5.1 KiB
C
164 lines
5.1 KiB
C
/*
|
|
* NCI based Driver for STMicroelectronics NFC Chip
|
|
*
|
|
* 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_ST_NCI_H_
|
|
#define __LOCAL_ST_NCI_H_
|
|
|
|
#include "ndlc.h"
|
|
|
|
/* Define private flags: */
|
|
#define ST_NCI_RUNNING 1
|
|
|
|
#define ST_NCI_CORE_PROP 0x01
|
|
#define ST_NCI_SET_NFC_MODE 0x02
|
|
|
|
/*
|
|
* 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
|
|
|
|
#define ST_NCI_DEVICE_MGNT_GATE 0x01
|
|
|
|
#define ST_NCI_VENDOR_OUI 0x0080E1 /* STMicroelectronics */
|
|
#define ST_NCI_FACTORY_MODE 2
|
|
|
|
struct nci_mode_set_cmd {
|
|
u8 cmd_type;
|
|
u8 mode;
|
|
} __packed;
|
|
|
|
struct nci_mode_set_rsp {
|
|
u8 status;
|
|
} __packed;
|
|
|
|
struct st_nci_se_status {
|
|
bool is_ese_present;
|
|
bool is_uicc_present;
|
|
};
|
|
|
|
struct st_nci_se_info {
|
|
struct st_nci_se_status *se_status;
|
|
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;
|
|
};
|
|
|
|
/**
|
|
* 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_DIRECT_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.
|
|
* @HCI_DM_VDC_MEASUREMENT_VALUE: Allow to measure the field applied on the
|
|
* CLF antenna. A value between 0 and 0x0f is returned. 0 is maximum.
|
|
* @HCI_DM_FWUPD_START: Allow to put CLF into firmware update mode. It is a
|
|
* specific CLF command as there is no GPIO for this.
|
|
* @HCI_DM_FWUPD_END: Allow to complete firmware update.
|
|
* @HCI_DM_VDC_VALUE_COMPARISON: Allow to compare the field applied on the
|
|
* CLF antenna to a reference value.
|
|
* @MANUFACTURER_SPECIFIC: Allow to retrieve manufacturer specific data
|
|
* received during a NCI_CORE_INIT_CMD.
|
|
*/
|
|
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_DIRECT_LOAD,
|
|
HCI_DM_RESET,
|
|
HCI_GET_PARAM,
|
|
HCI_DM_FIELD_GENERATOR,
|
|
HCI_LOOPBACK,
|
|
HCI_DM_FWUPD_START,
|
|
HCI_DM_FWUPD_END,
|
|
HCI_DM_VDC_MEASUREMENT_VALUE,
|
|
HCI_DM_VDC_VALUE_COMPARISON,
|
|
MANUFACTURER_SPECIFIC,
|
|
};
|
|
|
|
struct st_nci_vendor_info {
|
|
struct completion req_completion;
|
|
struct sk_buff *rx_skb;
|
|
};
|
|
|
|
struct st_nci_info {
|
|
struct llt_ndlc *ndlc;
|
|
unsigned long flags;
|
|
|
|
struct st_nci_se_info se_info;
|
|
struct st_nci_vendor_info vendor_info;
|
|
};
|
|
|
|
void st_nci_remove(struct nci_dev *ndev);
|
|
int st_nci_probe(struct llt_ndlc *ndlc, int phy_headroom,
|
|
int phy_tailroom, struct st_nci_se_status *se_status);
|
|
|
|
int st_nci_se_init(struct nci_dev *ndev, struct st_nci_se_status *se_status);
|
|
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);
|
|
|
|
void st_nci_hci_loopback_event_received(struct nci_dev *ndev, u8 event,
|
|
struct sk_buff *skb);
|
|
int st_nci_vendor_cmds_init(struct nci_dev *ndev);
|
|
|
|
#endif /* __LOCAL_ST_NCI_H_ */
|