linux/drivers/nfc/st21nfca/core.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * HCI based Driver for STMicroelectronics NFC Chip
 *
 * Copyright (C) 2014  STMicroelectronics SAS. All rights reserved.
 */

#include <linux/module.h>
#include <linux/nfc.h>
#include <net/nfc/hci.h>

#include "st21nfca.h"

#define DRIVER_DESC …

#define FULL_VERSION_LEN …

/* Proprietary gates, events, commands and registers */

/* Commands that apply to all RF readers */
#define ST21NFCA_RF_READER_CMD_PRESENCE_CHECK …

#define ST21NFCA_RF_READER_ISO15693_GATE …
#define ST21NFCA_RF_READER_ISO15693_INVENTORY …

/*
 * Reader gate for communication with contact-less cards using Type A
 * protocol ISO14443-3 but not compliant with ISO14443-4
 */
#define ST21NFCA_RF_READER_14443_3_A_GATE …
#define ST21NFCA_RF_READER_14443_3_A_UID …
#define ST21NFCA_RF_READER_14443_3_A_ATQA …
#define ST21NFCA_RF_READER_14443_3_A_SAK …

#define ST21NFCA_RF_READER_F_DATARATE …
#define ST21NFCA_RF_READER_F_DATARATE_106 …
#define ST21NFCA_RF_READER_F_DATARATE_212 …
#define ST21NFCA_RF_READER_F_DATARATE_424 …
#define ST21NFCA_RF_READER_F_POL_REQ …
#define ST21NFCA_RF_READER_F_POL_REQ_DEFAULT …
#define ST21NFCA_RF_READER_F_NFCID2 …
#define ST21NFCA_RF_READER_F_NFCID1 …

#define ST21NFCA_RF_CARD_F_MODE …
#define ST21NFCA_RF_CARD_F_NFCID2_LIST …
#define ST21NFCA_RF_CARD_F_NFCID1 …
#define ST21NFCA_RF_CARD_F_SENS_RES …
#define ST21NFCA_RF_CARD_F_SEL_RES …
#define ST21NFCA_RF_CARD_F_DATARATE …
#define ST21NFCA_RF_CARD_F_DATARATE_212_424 …

#define ST21NFCA_DEVICE_MGNT_PIPE …

#define ST21NFCA_DM_GETINFO …
#define ST21NFCA_DM_GETINFO_PIPE_LIST …
#define ST21NFCA_DM_GETINFO_PIPE_INFO …
#define ST21NFCA_DM_PIPE_CREATED …
#define ST21NFCA_DM_PIPE_OPEN …
#define ST21NFCA_DM_RF_ACTIVE …
#define ST21NFCA_DM_DISCONNECT …

#define ST21NFCA_DM_IS_PIPE_OPEN(p) …

#define ST21NFCA_NFC_MODE …

#define ST21NFCA_EVT_HOT_PLUG …
#define ST21NFCA_EVT_HOT_PLUG_IS_INHIBITED(x) …

#define ST21NFCA_SE_TO_PIPES …

static DECLARE_BITMAP(dev_mask, ST21NFCA_NUM_DEVICES);

static const struct nfc_hci_gate st21nfca_gates[] = …;

struct st21nfca_pipe_info { … } __packed;

/* Largest headroom needed for outgoing custom commands */
#define ST21NFCA_CMDS_HEADROOM …

static int st21nfca_hci_load_session(struct nfc_hci_dev *hdev)
{ … }

static int st21nfca_hci_open(struct nfc_hci_dev *hdev)
{ … }

static void st21nfca_hci_close(struct nfc_hci_dev *hdev)
{ … }

static int st21nfca_hci_ready(struct nfc_hci_dev *hdev)
{ … }

static int st21nfca_hci_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb)
{ … }

static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev,
				   u32 im_protocols, u32 tm_protocols)
{ … }

static void st21nfca_hci_stop_poll(struct nfc_hci_dev *hdev)
{ … }

static int st21nfca_get_iso14443_3_atqa(struct nfc_hci_dev *hdev, u16 *atqa)
{ … }

static int st21nfca_get_iso14443_3_sak(struct nfc_hci_dev *hdev, u8 *sak)
{ … }

static int st21nfca_get_iso14443_3_uid(struct nfc_hci_dev *hdev, u8 *uid,
				       int *len)
{ … }

static int st21nfca_get_iso15693_inventory(struct nfc_hci_dev *hdev,
					   struct nfc_target *target)
{ … }

static int st21nfca_hci_dep_link_up(struct nfc_hci_dev *hdev,
				    struct nfc_target *target, u8 comm_mode,
				    u8 *gb, size_t gb_len)
{ … }

static int st21nfca_hci_dep_link_down(struct nfc_hci_dev *hdev)
{ … }

static int st21nfca_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
					 struct nfc_target *target)
{ … }

static int st21nfca_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
						u8 gate,
						struct nfc_target *target)
{ … }

#define ST21NFCA_CB_TYPE_READER_ISO15693 …
static void st21nfca_hci_data_exchange_cb(void *context, struct sk_buff *skb,
					  int err)
{ … }

/*
 * Returns:
 * <= 0: driver handled the data exchange
 *    1: driver doesn't especially handle, please do standard processing
 */
static int st21nfca_hci_im_transceive(struct nfc_hci_dev *hdev,
				      struct nfc_target *target,
				      struct sk_buff *skb,
				      data_exchange_cb_t cb, void *cb_context)
{ … }

static int st21nfca_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
{ … }

static int st21nfca_hci_check_presence(struct nfc_hci_dev *hdev,
				       struct nfc_target *target)
{ … }

static void st21nfca_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
				struct sk_buff *skb)
{ … }

static int st21nfca_admin_event_received(struct nfc_hci_dev *hdev, u8 event,
					struct sk_buff *skb)
{ … }

/*
 * Returns:
 * <= 0: driver handled the event, skb consumed
 *    1: driver does not handle the event, please do standard processing
 */
static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe,
				       u8 event, struct sk_buff *skb)
{ … }

static const struct nfc_hci_ops st21nfca_hci_ops = …;

int st21nfca_hci_probe(void *phy_id, const 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)
{ … }
EXPORT_SYMBOL(…);

void st21nfca_hci_remove(struct nfc_hci_dev *hdev)
{ … }
EXPORT_SYMBOL(…);

MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…);