// SPDX-License-Identifier: GPL-2.0-only /* * HCI based Driver for NXP PN544 NFC Chip * * Copyright (C) 2012 Intel Corporation. All rights reserved. */ #define pr_fmt(fmt) … #include <linux/delay.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/nfc.h> #include <net/nfc/hci.h> #include "pn544.h" /* Timing restrictions (ms) */ #define PN544_HCI_RESETVEN_TIME … enum pn544_state { … }; #define FULL_VERSION_LEN … /* Proprietary commands */ #define PN544_WRITE … #define PN544_TEST_SWP … /* Proprietary gates, events, commands and registers */ /* NFC_HCI_RF_READER_A_GATE additional registers and commands */ #define PN544_RF_READER_A_AUTO_ACTIVATION … #define PN544_RF_READER_A_CMD_CONTINUE_ACTIVATION … #define PN544_MIFARE_CMD … /* Commands that apply to all RF readers */ #define PN544_RF_READER_CMD_PRESENCE_CHECK … #define PN544_RF_READER_CMD_ACTIVATE_NEXT … /* NFC_HCI_ID_MGMT_GATE additional registers */ #define PN544_ID_MGMT_FULL_VERSION_SW … #define PN544_RF_READER_ISO15693_GATE … #define PN544_RF_READER_F_GATE … #define PN544_FELICA_ID … #define PN544_FELICA_RAW … #define PN544_RF_READER_JEWEL_GATE … #define PN544_JEWEL_RAW_CMD … #define PN544_RF_READER_NFCIP1_INITIATOR_GATE … #define PN544_RF_READER_NFCIP1_TARGET_GATE … #define PN544_SYS_MGMT_GATE … #define PN544_SYS_MGMT_INFO_NOTIFICATION … #define PN544_POLLING_LOOP_MGMT_GATE … #define PN544_DEP_MODE … #define PN544_DEP_ATR_REQ … #define PN544_DEP_ATR_RES … #define PN544_DEP_MERGE … #define PN544_PL_RDPHASES … #define PN544_PL_EMULATION … #define PN544_PL_NFCT_DEACTIVATED … #define PN544_SWP_MGMT_GATE … #define PN544_SWP_DEFAULT_MODE … #define PN544_NFC_WI_MGMT_GATE … #define PN544_NFC_ESE_DEFAULT_MODE … #define PN544_HCI_EVT_SND_DATA … #define PN544_HCI_EVT_ACTIVATED … #define PN544_HCI_EVT_DEACTIVATED … #define PN544_HCI_EVT_RCV_DATA … #define PN544_HCI_EVT_CONTINUE_MI … #define PN544_HCI_EVT_SWITCH_MODE … #define PN544_HCI_CMD_ATTREQUEST … #define PN544_HCI_CMD_CONTINUE_ACTIVATION … static const struct nfc_hci_gate pn544_gates[] = …; /* Largest headroom needed for outgoing custom commands */ #define PN544_CMDS_HEADROOM … struct pn544_hci_info { … }; static int pn544_hci_open(struct nfc_hci_dev *hdev) { … } static void pn544_hci_close(struct nfc_hci_dev *hdev) { … } static int pn544_hci_ready(struct nfc_hci_dev *hdev) { … } static int pn544_hci_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb) { … } static int pn544_hci_start_poll(struct nfc_hci_dev *hdev, u32 im_protocols, u32 tm_protocols) { … } static int pn544_hci_dep_link_up(struct nfc_hci_dev *hdev, struct nfc_target *target, u8 comm_mode, u8 *gb, size_t gb_len) { … } static int pn544_hci_dep_link_down(struct nfc_hci_dev *hdev) { … } static int pn544_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate, struct nfc_target *target) { … } static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev, u8 gate, struct nfc_target *target) { … } #define PN544_CB_TYPE_READER_F … static void pn544_hci_data_exchange_cb(void *context, struct sk_buff *skb, int err) { … } #define MIFARE_CMD_AUTH_KEY_A … #define MIFARE_CMD_AUTH_KEY_B … #define MIFARE_CMD_HEADER … #define MIFARE_UID_LEN … #define MIFARE_KEY_LEN … #define MIFARE_CMD_LEN … /* * Returns: * <= 0: driver handled the data exchange * 1: driver doesn't especially handle, please do standard processing */ static int pn544_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 pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb) { … } static int pn544_hci_check_presence(struct nfc_hci_dev *hdev, struct nfc_target *target) { … } /* * Returns: * <= 0: driver handled the event, skb consumed * 1: driver does not handle the event, please do standard processing */ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event, struct sk_buff *skb) { … } static int pn544_hci_fw_download(struct nfc_hci_dev *hdev, const char *firmware_name) { … } static int pn544_hci_discover_se(struct nfc_hci_dev *hdev) { … } #define PN544_SE_MODE_OFF … #define PN544_SE_MODE_ON … static int pn544_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx) { … } static int pn544_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx) { … } static const struct nfc_hci_ops pn544_hci_ops = …; int pn544_hci_probe(void *phy_id, const struct nfc_phy_ops *phy_ops, char *llc_name, int phy_headroom, int phy_tailroom, int phy_payload, fw_download_t fw_download, struct nfc_hci_dev **hdev) { … } EXPORT_SYMBOL(…); void pn544_hci_remove(struct nfc_hci_dev *hdev) { … } EXPORT_SYMBOL(…); MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…);
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