Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 1921 insertions, 0 deletions

diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
new file mode 100644
index 000000000..963db96bc
--- /dev/null
+++ b/include/net/nfc/digital.h
@@ -0,0 +1,265 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ */
+
+#ifndef __NFC_DIGITAL_H
+#define __NFC_DIGITAL_H
+
+#include <linux/skbuff.h>
+#include <net/nfc/nfc.h>
+
+/**
+ * Configuration types for in_configure_hw and tg_configure_hw.
+ */
+enum {
+	NFC_DIGITAL_CONFIG_RF_TECH = 0,
+	NFC_DIGITAL_CONFIG_FRAMING,
+};
+
+/**
+ * RF technology values passed as param argument to in_configure_hw and
+ * tg_configure_hw for NFC_DIGITAL_CONFIG_RF_TECH configuration type.
+ */
+enum {
+	NFC_DIGITAL_RF_TECH_106A = 0,
+	NFC_DIGITAL_RF_TECH_212F,
+	NFC_DIGITAL_RF_TECH_424F,
+	NFC_DIGITAL_RF_TECH_ISO15693,
+	NFC_DIGITAL_RF_TECH_106B,
+
+	NFC_DIGITAL_RF_TECH_LAST,
+};
+
+/**
+ * Framing configuration passed as param argument to in_configure_hw and
+ * tg_configure_hw for NFC_DIGITAL_CONFIG_FRAMING configuration type.
+ */
+enum {
+	NFC_DIGITAL_FRAMING_NFCA_SHORT = 0,
+	NFC_DIGITAL_FRAMING_NFCA_STANDARD,
+	NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A,
+	NFC_DIGITAL_FRAMING_NFCA_ANTICOL_COMPLETE,
+
+	NFC_DIGITAL_FRAMING_NFCA_T1T,
+	NFC_DIGITAL_FRAMING_NFCA_T2T,
+	NFC_DIGITAL_FRAMING_NFCA_T4T,
+	NFC_DIGITAL_FRAMING_NFCA_NFC_DEP,
+
+	NFC_DIGITAL_FRAMING_NFCF,
+	NFC_DIGITAL_FRAMING_NFCF_T3T,
+	NFC_DIGITAL_FRAMING_NFCF_NFC_DEP,
+	NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED,
+
+	NFC_DIGITAL_FRAMING_ISO15693_INVENTORY,
+	NFC_DIGITAL_FRAMING_ISO15693_T5T,
+
+	NFC_DIGITAL_FRAMING_NFCB,
+	NFC_DIGITAL_FRAMING_NFCB_T4T,
+
+	NFC_DIGITAL_FRAMING_LAST,
+};
+
+#define DIGITAL_MDAA_NFCID1_SIZE 3
+
+struct digital_tg_mdaa_params {
+	u16 sens_res;
+	u8 nfcid1[DIGITAL_MDAA_NFCID1_SIZE];
+	u8 sel_res;
+
+	u8 nfcid2[NFC_NFCID2_MAXSIZE];
+	u16 sc;
+};
+
+struct nfc_digital_dev;
+
+/**
+ * nfc_digital_cmd_complete_t - Definition of command result callback
+ *
+ * @ddev: nfc_digital_device ref
+ * @arg: user data
+ * @resp: response data
+ *
+ * resp pointer can be an error code and will be checked with IS_ERR() macro.
+ * The callback is responsible for freeing resp sk_buff.
+ */
+typedef void (*nfc_digital_cmd_complete_t)(struct nfc_digital_dev *ddev,
+					   void *arg, struct sk_buff *resp);
+
+/**
+ * Device side NFC Digital operations
+ *
+ * Initiator mode:
+ * @in_configure_hw: Hardware configuration for RF technology and communication
+ *	framing in initiator mode. This is a synchronous function.
+ * @in_send_cmd: Initiator mode data exchange using RF technology and framing
+ *	previously set with in_configure_hw. The peer response is returned
+ *	through callback cb. If an io error occurs or the peer didn't reply
+ *	within the specified timeout (ms), the error code is passed back through
+ *	the resp pointer. This is an asynchronous function.
+ *
+ * Target mode: Only NFC-DEP protocol is supported in target mode.
+ * @tg_configure_hw: Hardware configuration for RF technology and communication
+ *	framing in target mode. This is a synchronous function.
+ * @tg_send_cmd: Target mode data exchange using RF technology and framing
+ *	previously set with tg_configure_hw. The peer next command is returned
+ *	through callback cb. If an io error occurs or the peer didn't reply
+ *	within the specified timeout (ms), the error code is passed back through
+ *	the resp pointer. This is an asynchronous function.
+ * @tg_listen: Put the device in listen mode waiting for data from the peer
+ *	device. This is an asynchronous function.
+ * @tg_listen_mdaa: If supported, put the device in automatic listen mode with
+ *	mode detection and automatic anti-collision. In this mode, the device
+ *	automatically detects the RF technology and executes the anti-collision
+ *	detection using the command responses specified in mdaa_params. The
+ *	mdaa_params structure contains SENS_RES, NFCID1, and SEL_RES for 106A RF
+ *	tech. NFCID2 and system code (sc) for 212F and 424F. The driver returns
+ *	the NFC-DEP ATR_REQ command through cb. The digital stack deducts the RF
+ *	tech by analyzing the SoD of the frame containing the ATR_REQ command.
+ *	This is an asynchronous function.
+ * @tg_listen_md: If supported, put the device in automatic listen mode with
+ *	mode detection but without automatic anti-collision. In this mode, the
+ *	device automatically detects the RF technology.  What the actual
+ *	RF technology is can be retrieved by calling @tg_get_rf_tech.
+ *	The digital stack will then perform the appropriate anti-collision
+ *	sequence.  This is an asynchronous function.
+ * @tg_get_rf_tech: Required when @tg_listen_md is supported, unused otherwise.
+ *	Return the RF Technology that was detected by the @tg_listen_md call.
+ *	This is a synchronous function.
+ *
+ * @switch_rf: Turns device radio on or off. The stack does not call explicitly
+ *	switch_rf to turn the radio on. A call to in|tg_configure_hw must turn
+ *	the device radio on.
+ * @abort_cmd: Discard the last sent command.
+ *
+ * Notes: Asynchronous functions have a timeout parameter. It is the driver
+ *	responsibility to call the digital stack back through the
+ *	nfc_digital_cmd_complete_t callback when no RF respsonse has been
+ *	received within the specified time (in milliseconds). In that case the
+ *	driver must set the resp sk_buff to ERR_PTR(-ETIMEDOUT).
+ *	Since the digital stack serializes commands to be sent, it's mandatory
+ *	for the driver to handle the timeout correctly. Otherwise the stack
+ *	would not be able to send new commands, waiting for the reply of the
+ *	current one.
+ */
+struct nfc_digital_ops {
+	int (*in_configure_hw)(struct nfc_digital_dev *ddev, int type,
+			       int param);
+	int (*in_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
+			   u16 timeout, nfc_digital_cmd_complete_t cb,
+			   void *arg);
+
+	int (*tg_configure_hw)(struct nfc_digital_dev *ddev, int type,
+			       int param);
+	int (*tg_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
+			   u16 timeout, nfc_digital_cmd_complete_t cb,
+			   void *arg);
+	int (*tg_listen)(struct nfc_digital_dev *ddev, u16 timeout,
+			 nfc_digital_cmd_complete_t cb, void *arg);
+	int (*tg_listen_mdaa)(struct nfc_digital_dev *ddev,
+			      struct digital_tg_mdaa_params *mdaa_params,
+			      u16 timeout, nfc_digital_cmd_complete_t cb,
+			      void *arg);
+	int (*tg_listen_md)(struct nfc_digital_dev *ddev, u16 timeout,
+			    nfc_digital_cmd_complete_t cb, void *arg);
+	int (*tg_get_rf_tech)(struct nfc_digital_dev *ddev, u8 *rf_tech);
+
+	int (*switch_rf)(struct nfc_digital_dev *ddev, bool on);
+	void (*abort_cmd)(struct nfc_digital_dev *ddev);
+};
+
+#define NFC_DIGITAL_POLL_MODE_COUNT_MAX	6 /* 106A, 212F, and 424F in & tg */
+
+typedef int (*digital_poll_t)(struct nfc_digital_dev *ddev, u8 rf_tech);
+
+struct digital_poll_tech {
+	u8 rf_tech;
+	digital_poll_t poll_func;
+};
+
+/**
+ * Driver capabilities - bit mask made of the following values
+ *
+ * @NFC_DIGITAL_DRV_CAPS_IN_CRC: The driver handles CRC calculation in initiator
+ *	mode.
+ * @NFC_DIGITAL_DRV_CAPS_TG_CRC: The driver handles CRC calculation in target
+ *	mode.
+ */
+#define NFC_DIGITAL_DRV_CAPS_IN_CRC	0x0001
+#define NFC_DIGITAL_DRV_CAPS_TG_CRC	0x0002
+
+struct nfc_digital_dev {
+	struct nfc_dev *nfc_dev;
+	struct nfc_digital_ops *ops;
+
+	u32 protocols;
+
+	int tx_headroom;
+	int tx_tailroom;
+
+	u32 driver_capabilities;
+	void *driver_data;
+
+	struct digital_poll_tech poll_techs[NFC_DIGITAL_POLL_MODE_COUNT_MAX];
+	u8 poll_tech_count;
+	u8 poll_tech_index;
+	struct mutex poll_lock;
+
+	struct work_struct cmd_work;
+	struct work_struct cmd_complete_work;
+	struct list_head cmd_queue;
+	struct mutex cmd_lock;
+
+	struct delayed_work poll_work;
+
+	u8 curr_protocol;
+	u8 curr_rf_tech;
+	u8 curr_nfc_dep_pni;
+	u8 did;
+	u16 dep_rwt;
+
+	u8 local_payload_max;
+	u8 remote_payload_max;
+
+	struct sk_buff *chaining_skb;
+	struct digital_data_exch *data_exch;
+
+	int atn_count;
+	int nack_count;
+
+	struct sk_buff *saved_skb;
+
+	u16 target_fsc;
+
+	int (*skb_check_crc)(struct sk_buff *skb);
+	void (*skb_add_crc)(struct sk_buff *skb);
+};
+
+struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+						    __u32 supported_protocols,
+						    __u32 driver_capabilities,
+						    int tx_headroom,
+						    int tx_tailroom);
+void nfc_digital_free_device(struct nfc_digital_dev *ndev);
+int nfc_digital_register_device(struct nfc_digital_dev *ndev);
+void nfc_digital_unregister_device(struct nfc_digital_dev *ndev);
+
+static inline void nfc_digital_set_parent_dev(struct nfc_digital_dev *ndev,
+					      struct device *dev)
+{
+	nfc_set_parent_dev(ndev->nfc_dev, dev);
+}
+
+static inline void nfc_digital_set_drvdata(struct nfc_digital_dev *dev,
+					   void *data)
+{
+	dev->driver_data = data;
+}
+
+static inline void *nfc_digital_get_drvdata(struct nfc_digital_dev *dev)
+{
+	return dev->driver_data;
+}
+
+#endif /* __NFC_DIGITAL_H */
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
new file mode 100644
index 000000000..b35f37a57
--- /dev/null
+++ b/include/net/nfc/hci.h
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011  Intel Corporation. All rights reserved.
+ */
+
+#ifndef __NET_HCI_H
+#define __NET_HCI_H
+
+#include <linux/skbuff.h>
+
+#include <net/nfc/nfc.h>
+
+struct nfc_hci_dev;
+
+struct nfc_hci_ops {
+	int (*open) (struct nfc_hci_dev *hdev);
+	void (*close) (struct nfc_hci_dev *hdev);
+	int (*load_session) (struct nfc_hci_dev *hdev);
+	int (*hci_ready) (struct nfc_hci_dev *hdev);
+	/*
+	 * xmit must always send the complete buffer before
+	 * returning. Returned result must be 0 for success
+	 * or negative for failure.
+	 */
+	int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
+	int (*start_poll) (struct nfc_hci_dev *hdev,
+			   u32 im_protocols, u32 tm_protocols);
+	void (*stop_poll) (struct nfc_hci_dev *hdev);
+	int (*dep_link_up)(struct nfc_hci_dev *hdev, struct nfc_target *target,
+			   u8 comm_mode, u8 *gb, size_t gb_len);
+	int (*dep_link_down)(struct nfc_hci_dev *hdev);
+	int (*target_from_gate) (struct nfc_hci_dev *hdev, u8 gate,
+				 struct nfc_target *target);
+	int (*complete_target_discovered) (struct nfc_hci_dev *hdev, u8 gate,
+					   struct nfc_target *target);
+	int (*im_transceive) (struct nfc_hci_dev *hdev,
+			      struct nfc_target *target, struct sk_buff *skb,
+			      data_exchange_cb_t cb, void *cb_context);
+	int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb);
+	int (*check_presence)(struct nfc_hci_dev *hdev,
+			      struct nfc_target *target);
+	int (*event_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
+			      struct sk_buff *skb);
+	void (*cmd_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+			    struct sk_buff *skb);
+	int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
+	int (*discover_se)(struct nfc_hci_dev *dev);
+	int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+	int (*disable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+	int (*se_io)(struct nfc_hci_dev *dev, u32 se_idx,
+		      u8 *apdu, size_t apdu_length,
+		      se_io_cb_t cb, void *cb_context);
+};
+
+/* Pipes */
+#define NFC_HCI_DO_NOT_CREATE_PIPE	0x81
+#define NFC_HCI_INVALID_PIPE	0x80
+#define NFC_HCI_INVALID_GATE	0xFF
+#define NFC_HCI_INVALID_HOST	0x80
+#define NFC_HCI_LINK_MGMT_PIPE	0x00
+#define NFC_HCI_ADMIN_PIPE	0x01
+
+struct nfc_hci_gate {
+	u8 gate;
+	u8 pipe;
+};
+
+struct nfc_hci_pipe {
+	u8 gate;
+	u8 dest_host;
+};
+
+#define NFC_HCI_MAX_CUSTOM_GATES	50
+/*
+ * According to specification 102 622 chapter 4.4 Pipes,
+ * the pipe identifier is 7 bits long.
+ */
+#define NFC_HCI_MAX_PIPES		128
+struct nfc_hci_init_data {
+	u8 gate_count;
+	struct nfc_hci_gate gates[NFC_HCI_MAX_CUSTOM_GATES];
+	char session_id[9];
+};
+
+typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
+
+#define NFC_HCI_MAX_GATES		256
+
+/*
+ * These values can be specified by a driver to indicate it requires some
+ * adaptation of the HCI standard.
+ *
+ * NFC_HCI_QUIRK_SHORT_CLEAR - send HCI_ADM_CLEAR_ALL_PIPE cmd with no params
+ */
+enum {
+	NFC_HCI_QUIRK_SHORT_CLEAR	= 0,
+};
+
+struct nfc_hci_dev {
+	struct nfc_dev *ndev;
+
+	u32 max_data_link_payload;
+
+	bool shutting_down;
+
+	struct mutex msg_tx_mutex;
+
+	struct list_head msg_tx_queue;
+
+	struct work_struct msg_tx_work;
+
+	struct timer_list cmd_timer;
+	struct hci_msg *cmd_pending_msg;
+
+	struct sk_buff_head rx_hcp_frags;
+
+	struct work_struct msg_rx_work;
+
+	struct sk_buff_head msg_rx_queue;
+
+	struct nfc_hci_ops *ops;
+
+	struct nfc_llc *llc;
+
+	struct nfc_hci_init_data init_data;
+
+	void *clientdata;
+
+	u8 gate2pipe[NFC_HCI_MAX_GATES];
+	struct nfc_hci_pipe pipes[NFC_HCI_MAX_PIPES];
+
+	u8 sw_romlib;
+	u8 sw_patch;
+	u8 sw_flashlib_major;
+	u8 sw_flashlib_minor;
+
+	u8 hw_derivative;
+	u8 hw_version;
+	u8 hw_mpw;
+	u8 hw_software;
+	u8 hw_bsid;
+
+	int async_cb_type;
+	data_exchange_cb_t async_cb;
+	void *async_cb_context;
+
+	u8 *gb;
+	size_t gb_len;
+
+	unsigned long quirks;
+};
+
+/* hci device allocation */
+struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
+					    struct nfc_hci_init_data *init_data,
+					    unsigned long quirks,
+					    u32 protocols,
+					    const char *llc_name,
+					    int tx_headroom,
+					    int tx_tailroom,
+					    int max_link_payload);
+void nfc_hci_free_device(struct nfc_hci_dev *hdev);
+
+int nfc_hci_register_device(struct nfc_hci_dev *hdev);
+void nfc_hci_unregister_device(struct nfc_hci_dev *hdev);
+
+void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata);
+void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev);
+
+static inline int nfc_hci_set_vendor_cmds(struct nfc_hci_dev *hdev,
+					  struct nfc_vendor_cmd *cmds,
+					  int n_cmds)
+{
+	return nfc_set_vendor_cmds(hdev->ndev, cmds, n_cmds);
+}
+
+void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err);
+
+int nfc_hci_result_to_errno(u8 result);
+void nfc_hci_reset_pipes(struct nfc_hci_dev *dev);
+void nfc_hci_reset_pipes_per_host(struct nfc_hci_dev *hdev, u8 host);
+
+/* Host IDs */
+#define NFC_HCI_HOST_CONTROLLER_ID	0x00
+#define NFC_HCI_TERMINAL_HOST_ID	0x01
+#define NFC_HCI_UICC_HOST_ID		0x02
+
+/* Host Controller Gates and registry indexes */
+#define NFC_HCI_ADMIN_GATE 0x00
+#define NFC_HCI_ADMIN_SESSION_IDENTITY	0x01
+#define NFC_HCI_ADMIN_MAX_PIPE		0x02
+#define NFC_HCI_ADMIN_WHITELIST		0x03
+#define NFC_HCI_ADMIN_HOST_LIST		0x04
+
+#define NFC_HCI_LOOPBACK_GATE		0x04
+
+#define NFC_HCI_ID_MGMT_GATE		0x05
+#define NFC_HCI_ID_MGMT_VERSION_SW	0x01
+#define NFC_HCI_ID_MGMT_VERSION_HW	0x03
+#define NFC_HCI_ID_MGMT_VENDOR_NAME	0x04
+#define NFC_HCI_ID_MGMT_MODEL_ID	0x05
+#define NFC_HCI_ID_MGMT_HCI_VERSION	0x02
+#define NFC_HCI_ID_MGMT_GATES_LIST	0x06
+
+#define NFC_HCI_LINK_MGMT_GATE		0x06
+#define NFC_HCI_LINK_MGMT_REC_ERROR	0x01
+
+#define NFC_HCI_RF_READER_B_GATE			0x11
+#define NFC_HCI_RF_READER_B_PUPI			0x03
+#define NFC_HCI_RF_READER_B_APPLICATION_DATA		0x04
+#define NFC_HCI_RF_READER_B_AFI				0x02
+#define NFC_HCI_RF_READER_B_HIGHER_LAYER_RESPONSE	0x01
+#define NFC_HCI_RF_READER_B_HIGHER_LAYER_DATA		0x05
+
+#define NFC_HCI_RF_READER_A_GATE		0x13
+#define NFC_HCI_RF_READER_A_UID			0x02
+#define NFC_HCI_RF_READER_A_ATQA		0x04
+#define NFC_HCI_RF_READER_A_APPLICATION_DATA	0x05
+#define NFC_HCI_RF_READER_A_SAK			0x03
+#define NFC_HCI_RF_READER_A_FWI_SFGT		0x06
+#define NFC_HCI_RF_READER_A_DATARATE_MAX	0x01
+
+#define NFC_HCI_TYPE_A_SEL_PROT(x)		(((x) & 0x60) >> 5)
+#define NFC_HCI_TYPE_A_SEL_PROT_MIFARE		0
+#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443	1
+#define NFC_HCI_TYPE_A_SEL_PROT_DEP		2
+#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP	3
+
+/* Generic events */
+#define NFC_HCI_EVT_HCI_END_OF_OPERATION	0x01
+#define NFC_HCI_EVT_POST_DATA			0x02
+#define NFC_HCI_EVT_HOT_PLUG			0x03
+
+/* Generic commands */
+#define NFC_HCI_ANY_SET_PARAMETER	0x01
+#define NFC_HCI_ANY_GET_PARAMETER	0x02
+#define NFC_HCI_ANY_OPEN_PIPE		0x03
+#define NFC_HCI_ANY_CLOSE_PIPE		0x04
+
+/* Reader RF gates events */
+#define NFC_HCI_EVT_READER_REQUESTED	0x10
+#define NFC_HCI_EVT_END_OPERATION	0x11
+
+/* Reader Application gate events */
+#define NFC_HCI_EVT_TARGET_DISCOVERED	0x10
+
+/* receiving messages from lower layer */
+void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result,
+			   struct sk_buff *skb);
+void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+			  struct sk_buff *skb);
+void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
+			    struct sk_buff *skb);
+void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb);
+
+/* connecting to gates and sending hci instructions */
+int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
+			 u8 pipe);
+int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate);
+int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev);
+int nfc_hci_get_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
+		      struct sk_buff **skb);
+int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
+		      const u8 *param, size_t param_len);
+int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
+		     const u8 *param, size_t param_len, struct sk_buff **skb);
+int nfc_hci_send_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
+			   const u8 *param, size_t param_len,
+			   data_exchange_cb_t cb, void *cb_context);
+int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
+		       const u8 *param, size_t param_len);
+int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
+u32 nfc_hci_sak_to_protocol(u8 sak);
+
+#endif /* __NET_HCI_H */
diff --git a/include/net/nfc/llc.h b/include/net/nfc/llc.h
new file mode 100644
index 000000000..1f699cb17
--- /dev/null
+++ b/include/net/nfc/llc.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Link Layer Control manager public interface
+ *
+ * Copyright (C) 2012  Intel Corporation. All rights reserved.
+ */
+
+#ifndef __NFC_LLC_H_
+#define __NFC_LLC_H_
+
+#include <net/nfc/hci.h>
+#include <linux/skbuff.h>
+
+#define LLC_NOP_NAME "nop"
+#define LLC_SHDLC_NAME "shdlc"
+
+typedef void (*rcv_to_hci_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
+typedef int (*xmit_to_drv_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
+typedef void (*llc_failure_t) (struct nfc_hci_dev *hdev, int err);
+
+struct nfc_llc;
+
+struct nfc_llc *nfc_llc_allocate(const char *name, struct nfc_hci_dev *hdev,
+				 xmit_to_drv_t xmit_to_drv,
+				 rcv_to_hci_t rcv_to_hci, int tx_headroom,
+				 int tx_tailroom, llc_failure_t llc_failure);
+void nfc_llc_free(struct nfc_llc *llc);
+
+int nfc_llc_start(struct nfc_llc *llc);
+int nfc_llc_stop(struct nfc_llc *llc);
+void nfc_llc_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb);
+int nfc_llc_xmit_from_hci(struct nfc_llc *llc, struct sk_buff *skb);
+
+int nfc_llc_init(void);
+void nfc_llc_exit(void);
+
+#endif /* __NFC_LLC_H_ */
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
new file mode 100644
index 000000000..0550e0380
--- /dev/null
+++ b/include/net/nfc/nci.h
@@ -0,0 +1,527 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  The NFC Controller Interface is the communication protocol between an
+ *  NFC Controller (NFCC) and a Device Host (DH).
+ *
+ *  Copyright (C) 2014 Marvell International Ltd.
+ *  Copyright (C) 2011 Texas Instruments, Inc.
+ *
+ *  Written by Ilan Elias <ilane@ti.com>
+ *
+ *  Acknowledgements:
+ *  This file is based on hci.h, which was written
+ *  by Maxim Krasnyansky.
+ */
+
+#ifndef __NCI_H
+#define __NCI_H
+
+#include <net/nfc/nfc.h>
+
+/* NCI constants */
+#define NCI_MAX_NUM_MAPPING_CONFIGS				10
+#define NCI_MAX_NUM_RF_CONFIGS					10
+#define NCI_MAX_NUM_CONN					10
+#define NCI_MAX_PARAM_LEN					251
+#define NCI_MAX_PAYLOAD_SIZE					255
+#define NCI_MAX_PACKET_SIZE					258
+
+/* NCI Status Codes */
+#define NCI_STATUS_OK						0x00
+#define NCI_STATUS_REJECTED					0x01
+#define NCI_STATUS_RF_FRAME_CORRUPTED				0x02
+#define NCI_STATUS_FAILED					0x03
+#define NCI_STATUS_NOT_INITIALIZED				0x04
+#define NCI_STATUS_SYNTAX_ERROR					0x05
+#define NCI_STATUS_SEMANTIC_ERROR				0x06
+#define NCI_STATUS_UNKNOWN_GID					0x07
+#define NCI_STATUS_UNKNOWN_OID					0x08
+#define NCI_STATUS_INVALID_PARAM				0x09
+#define NCI_STATUS_MESSAGE_SIZE_EXCEEDED			0x0a
+/* Discovery Specific Status Codes */
+#define NCI_STATUS_DISCOVERY_ALREADY_STARTED			0xa0
+#define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED		0xa1
+#define NCI_STATUS_DISCOVERY_TEAR_DOWN				0xa2
+/* RF Interface Specific Status Codes */
+#define NCI_STATUS_RF_TRANSMISSION_ERROR			0xb0
+#define NCI_STATUS_RF_PROTOCOL_ERROR				0xb1
+#define NCI_STATUS_RF_TIMEOUT_ERROR				0xb2
+/* NFCEE Interface Specific Status Codes */
+#define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED		0xc0
+#define NCI_STATUS_NFCEE_TRANSMISSION_ERROR			0xc1
+#define NCI_STATUS_NFCEE_PROTOCOL_ERROR				0xc2
+#define NCI_STATUS_NFCEE_TIMEOUT_ERROR				0xc3
+
+/* NFCEE Interface/Protocols */
+#define NCI_NFCEE_INTERFACE_APDU           0x00
+#define NCI_NFCEE_INTERFACE_HCI_ACCESS     0x01
+#define NCI_NFCEE_INTERFACE_TYPE3_CMD_SET  0x02
+#define NCI_NFCEE_INTERFACE_TRANSPARENT        0x03
+
+/* Destination type */
+#define NCI_DESTINATION_NFCC_LOOPBACK      0x01
+#define NCI_DESTINATION_REMOTE_NFC_ENDPOINT    0x02
+#define NCI_DESTINATION_NFCEE              0x03
+
+/* Destination-specific parameters type */
+#define NCI_DESTINATION_SPECIFIC_PARAM_RF_TYPE     0x00
+#define NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE  0x01
+
+/* NFCEE Discovery Action */
+#define NCI_NFCEE_DISCOVERY_ACTION_DISABLE			0x00
+#define NCI_NFCEE_DISCOVERY_ACTION_ENABLE			0x01
+
+/* NCI RF Technology and Mode */
+#define NCI_NFC_A_PASSIVE_POLL_MODE				0x00
+#define NCI_NFC_B_PASSIVE_POLL_MODE				0x01
+#define NCI_NFC_F_PASSIVE_POLL_MODE				0x02
+#define NCI_NFC_A_ACTIVE_POLL_MODE				0x03
+#define NCI_NFC_F_ACTIVE_POLL_MODE				0x05
+#define NCI_NFC_V_PASSIVE_POLL_MODE				0x06
+#define NCI_NFC_A_PASSIVE_LISTEN_MODE				0x80
+#define NCI_NFC_B_PASSIVE_LISTEN_MODE				0x81
+#define NCI_NFC_F_PASSIVE_LISTEN_MODE				0x82
+#define NCI_NFC_A_ACTIVE_LISTEN_MODE				0x83
+#define NCI_NFC_F_ACTIVE_LISTEN_MODE				0x85
+
+#define NCI_RF_TECH_MODE_LISTEN_MASK				0x80
+
+/* NCI RF Technologies */
+#define NCI_NFC_RF_TECHNOLOGY_A					0x00
+#define NCI_NFC_RF_TECHNOLOGY_B					0x01
+#define NCI_NFC_RF_TECHNOLOGY_F					0x02
+#define NCI_NFC_RF_TECHNOLOGY_V					0x03
+
+/* NCI Bit Rates */
+#define NCI_NFC_BIT_RATE_106					0x00
+#define NCI_NFC_BIT_RATE_212					0x01
+#define NCI_NFC_BIT_RATE_424					0x02
+#define NCI_NFC_BIT_RATE_848					0x03
+#define NCI_NFC_BIT_RATE_1695					0x04
+#define NCI_NFC_BIT_RATE_3390					0x05
+#define NCI_NFC_BIT_RATE_6780					0x06
+#define NCI_NFC_BIT_RATE_26					0x20
+
+/* NCI RF Protocols */
+#define NCI_RF_PROTOCOL_UNKNOWN					0x00
+#define NCI_RF_PROTOCOL_T1T					0x01
+#define NCI_RF_PROTOCOL_T2T					0x02
+#define NCI_RF_PROTOCOL_T3T					0x03
+#define NCI_RF_PROTOCOL_ISO_DEP					0x04
+#define NCI_RF_PROTOCOL_NFC_DEP					0x05
+#define NCI_RF_PROTOCOL_T5T					0x06
+
+/* NCI RF Interfaces */
+#define NCI_RF_INTERFACE_NFCEE_DIRECT				0x00
+#define NCI_RF_INTERFACE_FRAME					0x01
+#define NCI_RF_INTERFACE_ISO_DEP				0x02
+#define NCI_RF_INTERFACE_NFC_DEP				0x03
+
+/* NCI Configuration Parameter Tags */
+#define NCI_PN_ATR_REQ_GEN_BYTES				0x29
+#define NCI_LN_ATR_RES_GEN_BYTES				0x61
+#define NCI_LA_SEL_INFO						0x32
+#define NCI_LF_PROTOCOL_TYPE					0x50
+#define NCI_LF_CON_BITR_F					0x54
+
+/* NCI Configuration Parameters masks */
+#define NCI_LA_SEL_INFO_ISO_DEP_MASK				0x20
+#define NCI_LA_SEL_INFO_NFC_DEP_MASK				0x40
+#define NCI_LF_PROTOCOL_TYPE_NFC_DEP_MASK			0x02
+#define NCI_LF_CON_BITR_F_212					0x02
+#define NCI_LF_CON_BITR_F_424					0x04
+
+/* NCI Reset types */
+#define NCI_RESET_TYPE_KEEP_CONFIG				0x00
+#define NCI_RESET_TYPE_RESET_CONFIG				0x01
+
+/* NCI Static RF connection ID */
+#define NCI_STATIC_RF_CONN_ID					0x00
+
+/* NCI Data Flow Control */
+#define NCI_DATA_FLOW_CONTROL_NOT_USED				0xff
+
+/* NCI RF_DISCOVER_MAP_CMD modes */
+#define NCI_DISC_MAP_MODE_POLL					0x01
+#define NCI_DISC_MAP_MODE_LISTEN				0x02
+
+/* NCI Discover Notification Type */
+#define NCI_DISCOVER_NTF_TYPE_LAST				0x00
+#define NCI_DISCOVER_NTF_TYPE_LAST_NFCC				0x01
+#define NCI_DISCOVER_NTF_TYPE_MORE				0x02
+
+/* NCI Deactivation Type */
+#define NCI_DEACTIVATE_TYPE_IDLE_MODE				0x00
+#define NCI_DEACTIVATE_TYPE_SLEEP_MODE				0x01
+#define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE			0x02
+#define NCI_DEACTIVATE_TYPE_DISCOVERY				0x03
+
+/* Message Type (MT) */
+#define NCI_MT_DATA_PKT						0x00
+#define NCI_MT_CMD_PKT						0x01
+#define NCI_MT_RSP_PKT						0x02
+#define NCI_MT_NTF_PKT						0x03
+
+#define nci_mt(hdr)			(((hdr)[0]>>5)&0x07)
+#define nci_mt_set(hdr, mt)		((hdr)[0] |= (__u8)(((mt)&0x07)<<5))
+
+/* Packet Boundary Flag (PBF) */
+#define NCI_PBF_LAST						0x00
+#define NCI_PBF_CONT						0x01
+
+#define nci_pbf(hdr)			(__u8)(((hdr)[0]>>4)&0x01)
+#define nci_pbf_set(hdr, pbf)		((hdr)[0] |= (__u8)(((pbf)&0x01)<<4))
+
+/* Control Opcode manipulation */
+#define nci_opcode_pack(gid, oid)	(__u16)((((__u16)((gid)&0x0f))<<8)|\
+					((__u16)((oid)&0x3f)))
+#define nci_opcode(hdr)			nci_opcode_pack(hdr[0], hdr[1])
+#define nci_opcode_gid(op)		(__u8)(((op)&0x0f00)>>8)
+#define nci_opcode_oid(op)		(__u8)((op)&0x003f)
+
+/* Payload Length */
+#define nci_plen(hdr)			(__u8)((hdr)[2])
+
+/* Connection ID */
+#define nci_conn_id(hdr)		(__u8)(((hdr)[0])&0x0f)
+
+/* GID values */
+#define NCI_GID_CORE						0x0
+#define NCI_GID_RF_MGMT						0x1
+#define NCI_GID_NFCEE_MGMT					0x2
+#define NCI_GID_PROPRIETARY					0xf
+
+/* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */
+#define NCI_SPI_HDR_LEN						4
+#define NCI_SPI_CRC_LEN						2
+
+/* ---- NCI Packet structures ---- */
+#define NCI_CTRL_HDR_SIZE					3
+#define NCI_DATA_HDR_SIZE					3
+
+struct nci_ctrl_hdr {
+	__u8	gid;		/* MT & PBF & GID */
+	__u8	oid;
+	__u8	plen;
+} __packed;
+
+struct nci_data_hdr {
+	__u8	conn_id;	/* MT & PBF & ConnID */
+	__u8	rfu;
+	__u8	plen;
+} __packed;
+
+/* ------------------------ */
+/* -----  NCI Commands ---- */
+/* ------------------------ */
+#define NCI_OP_CORE_RESET_CMD		nci_opcode_pack(NCI_GID_CORE, 0x00)
+struct nci_core_reset_cmd {
+	__u8	reset_type;
+} __packed;
+
+#define NCI_OP_CORE_INIT_CMD		nci_opcode_pack(NCI_GID_CORE, 0x01)
+
+#define NCI_OP_CORE_SET_CONFIG_CMD	nci_opcode_pack(NCI_GID_CORE, 0x02)
+struct set_config_param {
+	__u8	id;
+	__u8	len;
+	__u8	val[NCI_MAX_PARAM_LEN];
+} __packed;
+
+struct nci_core_set_config_cmd {
+	__u8	num_params;
+	struct	set_config_param param; /* support 1 param per cmd is enough */
+} __packed;
+
+#define NCI_OP_CORE_CONN_CREATE_CMD	nci_opcode_pack(NCI_GID_CORE, 0x04)
+#define DEST_SPEC_PARAMS_ID_INDEX	0
+#define DEST_SPEC_PARAMS_PROTOCOL_INDEX	1
+struct dest_spec_params {
+	__u8    id;
+	__u8    protocol;
+} __packed;
+
+struct core_conn_create_dest_spec_params {
+	__u8    type;
+	__u8    length;
+	__u8    value[];
+} __packed;
+
+struct nci_core_conn_create_cmd {
+	__u8    destination_type;
+	__u8    number_destination_params;
+	struct core_conn_create_dest_spec_params params[];
+} __packed;
+
+#define NCI_OP_CORE_CONN_CLOSE_CMD	nci_opcode_pack(NCI_GID_CORE, 0x05)
+
+#define NCI_OP_RF_DISCOVER_MAP_CMD	nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
+struct disc_map_config {
+	__u8	rf_protocol;
+	__u8	mode;
+	__u8	rf_interface;
+} __packed;
+
+struct nci_rf_disc_map_cmd {
+	__u8				num_mapping_configs;
+	struct disc_map_config		mapping_configs
+					[NCI_MAX_NUM_MAPPING_CONFIGS];
+} __packed;
+
+#define NCI_OP_RF_DISCOVER_CMD		nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
+struct disc_config {
+	__u8	rf_tech_and_mode;
+	__u8	frequency;
+} __packed;
+
+struct nci_rf_disc_cmd {
+	__u8				num_disc_configs;
+	struct disc_config		disc_configs[NCI_MAX_NUM_RF_CONFIGS];
+} __packed;
+
+#define NCI_OP_RF_DISCOVER_SELECT_CMD	nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
+struct nci_rf_discover_select_cmd {
+	__u8	rf_discovery_id;
+	__u8	rf_protocol;
+	__u8	rf_interface;
+} __packed;
+
+#define NCI_OP_RF_DEACTIVATE_CMD	nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
+struct nci_rf_deactivate_cmd {
+	__u8	type;
+} __packed;
+
+#define NCI_OP_NFCEE_DISCOVER_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00)
+struct nci_nfcee_discover_cmd {
+	__u8	discovery_action;
+} __packed;
+
+#define NCI_OP_NFCEE_MODE_SET_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01)
+#define NCI_NFCEE_DISABLE	0x00
+#define NCI_NFCEE_ENABLE	0x01
+struct nci_nfcee_mode_set_cmd {
+	__u8	nfcee_id;
+	__u8	nfcee_mode;
+} __packed;
+
+#define NCI_OP_CORE_GET_CONFIG_CMD	nci_opcode_pack(NCI_GID_CORE, 0x03)
+
+/* ----------------------- */
+/* ---- NCI Responses ---- */
+/* ----------------------- */
+#define NCI_OP_CORE_RESET_RSP		nci_opcode_pack(NCI_GID_CORE, 0x00)
+struct nci_core_reset_rsp {
+	__u8	status;
+	__u8	nci_ver;
+	__u8	config_status;
+} __packed;
+
+#define NCI_OP_CORE_INIT_RSP		nci_opcode_pack(NCI_GID_CORE, 0x01)
+struct nci_core_init_rsp_1 {
+	__u8	status;
+	__le32	nfcc_features;
+	__u8	num_supported_rf_interfaces;
+	__u8	supported_rf_interfaces[];	/* variable size array */
+	/* continuted in nci_core_init_rsp_2 */
+} __packed;
+
+struct nci_core_init_rsp_2 {
+	__u8	max_logical_connections;
+	__le16	max_routing_table_size;
+	__u8	max_ctrl_pkt_payload_len;
+	__le16	max_size_for_large_params;
+	__u8	manufact_id;
+	__le32	manufact_specific_info;
+} __packed;
+
+#define NCI_OP_CORE_SET_CONFIG_RSP	nci_opcode_pack(NCI_GID_CORE, 0x02)
+struct nci_core_set_config_rsp {
+	__u8	status;
+	__u8	num_params;
+	__u8	params_id[];	/* variable size array */
+} __packed;
+
+#define NCI_OP_CORE_CONN_CREATE_RSP	nci_opcode_pack(NCI_GID_CORE, 0x04)
+struct nci_core_conn_create_rsp {
+	__u8	status;
+	__u8	max_ctrl_pkt_payload_len;
+	__u8    credits_cnt;
+	__u8	conn_id;
+} __packed;
+
+#define NCI_OP_CORE_CONN_CLOSE_RSP	nci_opcode_pack(NCI_GID_CORE, 0x05)
+
+#define NCI_OP_RF_DISCOVER_MAP_RSP	nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
+
+#define NCI_OP_RF_DISCOVER_RSP		nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
+
+#define NCI_OP_RF_DISCOVER_SELECT_RSP	nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
+
+#define NCI_OP_RF_DEACTIVATE_RSP	nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
+
+#define NCI_OP_NFCEE_DISCOVER_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00)
+struct nci_nfcee_discover_rsp {
+	__u8	status;
+	__u8	num_nfcee;
+} __packed;
+
+#define NCI_OP_NFCEE_MODE_SET_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01)
+
+#define NCI_OP_CORE_GET_CONFIG_RSP	nci_opcode_pack(NCI_GID_CORE, 0x03)
+
+/* --------------------------- */
+/* ---- NCI Notifications ---- */
+/* --------------------------- */
+#define NCI_OP_CORE_CONN_CREDITS_NTF	nci_opcode_pack(NCI_GID_CORE, 0x06)
+struct conn_credit_entry {
+	__u8	conn_id;
+	__u8	credits;
+} __packed;
+
+struct nci_core_conn_credit_ntf {
+	__u8				num_entries;
+	struct conn_credit_entry	conn_entries[NCI_MAX_NUM_CONN];
+} __packed;
+
+#define NCI_OP_CORE_GENERIC_ERROR_NTF	nci_opcode_pack(NCI_GID_CORE, 0x07)
+
+#define NCI_OP_CORE_INTF_ERROR_NTF	nci_opcode_pack(NCI_GID_CORE, 0x08)
+struct nci_core_intf_error_ntf {
+	__u8	status;
+	__u8	conn_id;
+} __packed;
+
+#define NCI_OP_RF_DISCOVER_NTF		nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
+struct rf_tech_specific_params_nfca_poll {
+	__u16	sens_res;
+	__u8	nfcid1_len;	/* 0, 4, 7, or 10 Bytes */
+	__u8	nfcid1[NFC_NFCID1_MAXSIZE];
+	__u8	sel_res_len;	/* 0 or 1 Bytes */
+	__u8	sel_res;
+} __packed;
+
+struct rf_tech_specific_params_nfcb_poll {
+	__u8	sensb_res_len;
+	__u8	sensb_res[NFC_SENSB_RES_MAXSIZE];	/* 11 or 12 Bytes */
+} __packed;
+
+struct rf_tech_specific_params_nfcf_poll {
+	__u8	bit_rate;
+	__u8	sensf_res_len;
+	__u8	sensf_res[NFC_SENSF_RES_MAXSIZE];	/* 16 or 18 Bytes */
+} __packed;
+
+struct rf_tech_specific_params_nfcv_poll {
+	__u8	res_flags;
+	__u8	dsfid;
+	__u8	uid[NFC_ISO15693_UID_MAXSIZE];	/* 8 Bytes */
+} __packed;
+
+struct rf_tech_specific_params_nfcf_listen {
+	__u8	local_nfcid2_len;
+	__u8	local_nfcid2[NFC_NFCID2_MAXSIZE];	/* 0 or 8 Bytes */
+} __packed;
+
+struct nci_rf_discover_ntf {
+	__u8	rf_discovery_id;
+	__u8	rf_protocol;
+	__u8	rf_tech_and_mode;
+	__u8	rf_tech_specific_params_len;
+
+	union {
+		struct rf_tech_specific_params_nfca_poll nfca_poll;
+		struct rf_tech_specific_params_nfcb_poll nfcb_poll;
+		struct rf_tech_specific_params_nfcf_poll nfcf_poll;
+		struct rf_tech_specific_params_nfcv_poll nfcv_poll;
+	} rf_tech_specific_params;
+
+	__u8	ntf_type;
+} __packed;
+
+#define NCI_OP_RF_INTF_ACTIVATED_NTF	nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
+struct activation_params_nfca_poll_iso_dep {
+	__u8	rats_res_len;
+	__u8	rats_res[20];
+};
+
+struct activation_params_nfcb_poll_iso_dep {
+	__u8	attrib_res_len;
+	__u8	attrib_res[50];
+};
+
+struct activation_params_poll_nfc_dep {
+	__u8	atr_res_len;
+	__u8	atr_res[NFC_ATR_RES_MAXSIZE - 2]; /* ATR_RES from byte 3 */
+};
+
+struct activation_params_listen_nfc_dep {
+	__u8	atr_req_len;
+	__u8	atr_req[NFC_ATR_REQ_MAXSIZE - 2]; /* ATR_REQ from byte 3 */
+};
+
+struct nci_rf_intf_activated_ntf {
+	__u8	rf_discovery_id;
+	__u8	rf_interface;
+	__u8	rf_protocol;
+	__u8	activation_rf_tech_and_mode;
+	__u8	max_data_pkt_payload_size;
+	__u8	initial_num_credits;
+	__u8	rf_tech_specific_params_len;
+
+	union {
+		struct rf_tech_specific_params_nfca_poll nfca_poll;
+		struct rf_tech_specific_params_nfcb_poll nfcb_poll;
+		struct rf_tech_specific_params_nfcf_poll nfcf_poll;
+		struct rf_tech_specific_params_nfcv_poll nfcv_poll;
+		struct rf_tech_specific_params_nfcf_listen nfcf_listen;
+	} rf_tech_specific_params;
+
+	__u8	data_exch_rf_tech_and_mode;
+	__u8	data_exch_tx_bit_rate;
+	__u8	data_exch_rx_bit_rate;
+	__u8	activation_params_len;
+
+	union {
+		struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep;
+		struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep;
+		struct activation_params_poll_nfc_dep poll_nfc_dep;
+		struct activation_params_listen_nfc_dep listen_nfc_dep;
+	} activation_params;
+
+} __packed;
+
+#define NCI_OP_RF_DEACTIVATE_NTF	nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
+struct nci_rf_deactivate_ntf {
+	__u8	type;
+	__u8	reason;
+} __packed;
+
+#define NCI_OP_RF_NFCEE_ACTION_NTF	nci_opcode_pack(NCI_GID_RF_MGMT, 0x09)
+struct nci_rf_nfcee_action_ntf {
+	__u8 nfcee_id;
+	__u8 trigger;
+	__u8 supported_data_length;
+	__u8 supported_data[];
+} __packed;
+
+#define NCI_OP_NFCEE_DISCOVER_NTF nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00)
+struct nci_nfcee_supported_protocol {
+	__u8	num_protocol;
+	__u8	supported_protocol[];
+} __packed;
+
+struct nci_nfcee_information_tlv {
+	__u8	num_tlv;
+	__u8	information_tlv[];
+} __packed;
+
+struct nci_nfcee_discover_ntf {
+	__u8	nfcee_id;
+	__u8	nfcee_status;
+	struct nci_nfcee_supported_protocol supported_protocols;
+	struct nci_nfcee_information_tlv	information_tlv;
+} __packed;
+
+#define NCI_OP_CORE_RESET_NTF		nci_opcode_pack(NCI_GID_CORE, 0x00)
+
+#endif /* __NCI_H */
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
new file mode 100644
index 000000000..004e49f74
--- /dev/null
+++ b/include/net/nfc/nci_core.h
@@ -0,0 +1,465 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  The NFC Controller Interface is the communication protocol between an
+ *  NFC Controller (NFCC) and a Device Host (DH).
+ *
+ *  Copyright (C) 2011 Texas Instruments, Inc.
+ *  Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *  Copyright (C) 2014 Marvell International Ltd.
+ *
+ *  Written by Ilan Elias <ilane@ti.com>
+ *
+ *  Acknowledgements:
+ *  This file is based on hci_core.h, which was written
+ *  by Maxim Krasnyansky.
+ */
+
+#ifndef __NCI_CORE_H
+#define __NCI_CORE_H
+
+#include <linux/interrupt.h>
+#include <linux/skbuff.h>
+#include <linux/tty.h>
+
+#include <net/nfc/nfc.h>
+#include <net/nfc/nci.h>
+
+/* NCI device flags */
+enum nci_flag {
+	NCI_INIT,
+	NCI_UP,
+	NCI_DATA_EXCHANGE,
+	NCI_DATA_EXCHANGE_TO,
+	NCI_UNREG,
+};
+
+/* NCI device states */
+enum nci_state {
+	NCI_IDLE,
+	NCI_DISCOVERY,
+	NCI_W4_ALL_DISCOVERIES,
+	NCI_W4_HOST_SELECT,
+	NCI_POLL_ACTIVE,
+	NCI_LISTEN_ACTIVE,
+	NCI_LISTEN_SLEEP,
+};
+
+/* NCI timeouts */
+#define NCI_RESET_TIMEOUT			5000
+#define NCI_INIT_TIMEOUT			5000
+#define NCI_SET_CONFIG_TIMEOUT			5000
+#define NCI_RF_DISC_TIMEOUT			5000
+#define NCI_RF_DISC_SELECT_TIMEOUT		5000
+#define NCI_RF_DEACTIVATE_TIMEOUT		30000
+#define NCI_CMD_TIMEOUT				5000
+#define NCI_DATA_TIMEOUT			700
+
+struct nci_dev;
+
+struct nci_driver_ops {
+	__u16 opcode;
+	int (*rsp)(struct nci_dev *dev, struct sk_buff *skb);
+	int (*ntf)(struct nci_dev *dev, struct sk_buff *skb);
+};
+
+struct nci_ops {
+	int   (*init)(struct nci_dev *ndev);
+	int   (*open)(struct nci_dev *ndev);
+	int   (*close)(struct nci_dev *ndev);
+	int   (*send)(struct nci_dev *ndev, struct sk_buff *skb);
+	int   (*setup)(struct nci_dev *ndev);
+	int   (*post_setup)(struct nci_dev *ndev);
+	int   (*fw_download)(struct nci_dev *ndev, const char *firmware_name);
+	__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
+	int   (*discover_se)(struct nci_dev *ndev);
+	int   (*disable_se)(struct nci_dev *ndev, u32 se_idx);
+	int   (*enable_se)(struct nci_dev *ndev, u32 se_idx);
+	int   (*se_io)(struct nci_dev *ndev, u32 se_idx,
+				u8 *apdu, size_t apdu_length,
+				se_io_cb_t cb, void *cb_context);
+	int   (*hci_load_session)(struct nci_dev *ndev);
+	void  (*hci_event_received)(struct nci_dev *ndev, u8 pipe, u8 event,
+				    struct sk_buff *skb);
+	void  (*hci_cmd_received)(struct nci_dev *ndev, u8 pipe, u8 cmd,
+				  struct sk_buff *skb);
+
+	struct nci_driver_ops *prop_ops;
+	size_t n_prop_ops;
+
+	struct nci_driver_ops *core_ops;
+	size_t n_core_ops;
+};
+
+#define NCI_MAX_SUPPORTED_RF_INTERFACES		4
+#define NCI_MAX_DISCOVERED_TARGETS		10
+#define NCI_MAX_NUM_NFCEE   255
+#define NCI_MAX_CONN_ID		7
+#define NCI_MAX_PROPRIETARY_CMD 64
+
+struct nci_conn_info {
+	struct list_head list;
+	/* NCI specification 4.4.2 Connection Creation
+	 * The combination of destination type and destination specific
+	 * parameters shall uniquely identify a single destination for the
+	 * Logical Connection
+	 */
+	struct dest_spec_params *dest_params;
+	__u8	dest_type;
+	__u8	conn_id;
+	__u8	max_pkt_payload_len;
+
+	atomic_t credits_cnt;
+	__u8	 initial_num_credits;
+
+	data_exchange_cb_t	data_exchange_cb;
+	void *data_exchange_cb_context;
+
+	struct sk_buff *rx_skb;
+};
+
+#define NCI_INVALID_CONN_ID 0x80
+
+#define NCI_HCI_ANY_OPEN_PIPE      0x03
+
+/* Gates */
+#define NCI_HCI_ADMIN_GATE         0x00
+#define NCI_HCI_LOOPBACK_GATE	   0x04
+#define NCI_HCI_IDENTITY_MGMT_GATE 0x05
+#define NCI_HCI_LINK_MGMT_GATE     0x06
+
+/* Pipes */
+#define NCI_HCI_LINK_MGMT_PIPE             0x00
+#define NCI_HCI_ADMIN_PIPE                 0x01
+
+/* Generic responses */
+#define NCI_HCI_ANY_OK                     0x00
+#define NCI_HCI_ANY_E_NOT_CONNECTED        0x01
+#define NCI_HCI_ANY_E_CMD_PAR_UNKNOWN      0x02
+#define NCI_HCI_ANY_E_NOK                  0x03
+#define NCI_HCI_ANY_E_PIPES_FULL           0x04
+#define NCI_HCI_ANY_E_REG_PAR_UNKNOWN      0x05
+#define NCI_HCI_ANY_E_PIPE_NOT_OPENED      0x06
+#define NCI_HCI_ANY_E_CMD_NOT_SUPPORTED    0x07
+#define NCI_HCI_ANY_E_INHIBITED            0x08
+#define NCI_HCI_ANY_E_TIMEOUT              0x09
+#define NCI_HCI_ANY_E_REG_ACCESS_DENIED    0x0a
+#define NCI_HCI_ANY_E_PIPE_ACCESS_DENIED   0x0b
+
+#define NCI_HCI_DO_NOT_OPEN_PIPE           0x81
+#define NCI_HCI_INVALID_PIPE               0x80
+#define NCI_HCI_INVALID_GATE               0xFF
+#define NCI_HCI_INVALID_HOST               0x80
+
+#define NCI_HCI_MAX_CUSTOM_GATES   50
+/*
+ * According to specification 102 622 chapter 4.4 Pipes,
+ * the pipe identifier is 7 bits long.
+ */
+#define NCI_HCI_MAX_PIPES          128
+
+struct nci_hci_gate {
+	u8 gate;
+	u8 pipe;
+	u8 dest_host;
+} __packed;
+
+struct nci_hci_pipe {
+	u8 gate;
+	u8 host;
+} __packed;
+
+struct nci_hci_init_data {
+	u8 gate_count;
+	struct nci_hci_gate gates[NCI_HCI_MAX_CUSTOM_GATES];
+	char session_id[9];
+};
+
+#define NCI_HCI_MAX_GATES          256
+
+struct nci_hci_dev {
+	u8 nfcee_id;
+	struct nci_dev *ndev;
+	struct nci_conn_info *conn_info;
+
+	struct nci_hci_init_data init_data;
+	struct nci_hci_pipe pipes[NCI_HCI_MAX_PIPES];
+	u8 gate2pipe[NCI_HCI_MAX_GATES];
+	int expected_pipes;
+	int count_pipes;
+
+	struct sk_buff_head rx_hcp_frags;
+	struct work_struct msg_rx_work;
+	struct sk_buff_head msg_rx_queue;
+};
+
+/* NCI Core structures */
+struct nci_dev {
+	struct nfc_dev		*nfc_dev;
+	struct nci_ops		*ops;
+	struct nci_hci_dev	*hci_dev;
+
+	int			tx_headroom;
+	int			tx_tailroom;
+
+	atomic_t		state;
+	unsigned long		flags;
+
+	atomic_t		cmd_cnt;
+	__u8			cur_conn_id;
+
+	struct list_head	conn_info_list;
+	struct nci_conn_info	*rf_conn_info;
+
+	struct timer_list	cmd_timer;
+	struct timer_list	data_timer;
+
+	struct workqueue_struct	*cmd_wq;
+	struct work_struct	cmd_work;
+
+	struct workqueue_struct	*rx_wq;
+	struct work_struct	rx_work;
+
+	struct workqueue_struct	*tx_wq;
+	struct work_struct	tx_work;
+
+	struct sk_buff_head	cmd_q;
+	struct sk_buff_head	rx_q;
+	struct sk_buff_head	tx_q;
+
+	struct mutex		req_lock;
+	struct completion	req_completion;
+	__u32			req_status;
+	__u32			req_result;
+
+	void			*driver_data;
+
+	__u32			poll_prots;
+	__u32			target_active_prot;
+
+	struct nfc_target	targets[NCI_MAX_DISCOVERED_TARGETS];
+	int			n_targets;
+
+	/* received during NCI_OP_CORE_RESET_RSP */
+	__u8			nci_ver;
+
+	/* received during NCI_OP_CORE_INIT_RSP */
+	__u32			nfcc_features;
+	__u8			num_supported_rf_interfaces;
+	__u8			supported_rf_interfaces
+				[NCI_MAX_SUPPORTED_RF_INTERFACES];
+	__u8			max_logical_connections;
+	__u16			max_routing_table_size;
+	__u8			max_ctrl_pkt_payload_len;
+	__u16			max_size_for_large_params;
+	__u8			manufact_id;
+	__u32			manufact_specific_info;
+
+	/* Save RF Discovery ID or NFCEE ID under conn_create */
+	struct dest_spec_params cur_params;
+	/* Save destination type under conn_create */
+	__u8			cur_dest_type;
+
+	/* stored during nci_data_exchange */
+	struct sk_buff		*rx_data_reassembly;
+
+	/* stored during intf_activated_ntf */
+	__u8 remote_gb[NFC_MAX_GT_LEN];
+	__u8 remote_gb_len;
+};
+
+/* ----- NCI Devices ----- */
+struct nci_dev *nci_allocate_device(struct nci_ops *ops,
+				    __u32 supported_protocols,
+				    int tx_headroom,
+				    int tx_tailroom);
+void nci_free_device(struct nci_dev *ndev);
+int nci_register_device(struct nci_dev *ndev);
+void nci_unregister_device(struct nci_dev *ndev);
+int nci_request(struct nci_dev *ndev,
+		void (*req)(struct nci_dev *ndev,
+			    unsigned long opt),
+		unsigned long opt, __u32 timeout);
+int nci_prop_cmd(struct nci_dev *ndev, __u8 oid, size_t len, __u8 *payload);
+int nci_core_cmd(struct nci_dev *ndev, __u16 opcode, size_t len, __u8 *payload);
+int nci_core_reset(struct nci_dev *ndev);
+int nci_core_init(struct nci_dev *ndev);
+
+int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
+
+int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
+int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode);
+int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
+			 u8 number_destination_params,
+			 size_t params_len,
+			 struct core_conn_create_dest_spec_params *params);
+int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id);
+int nci_nfcc_loopback(struct nci_dev *ndev, void *data, size_t data_len,
+		      struct sk_buff **resp);
+
+struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev);
+void nci_hci_deallocate(struct nci_dev *ndev);
+int nci_hci_send_event(struct nci_dev *ndev, u8 gate, u8 event,
+		       const u8 *param, size_t param_len);
+int nci_hci_send_cmd(struct nci_dev *ndev, u8 gate,
+		     u8 cmd, const u8 *param, size_t param_len,
+		     struct sk_buff **skb);
+int nci_hci_open_pipe(struct nci_dev *ndev, u8 pipe);
+int nci_hci_connect_gate(struct nci_dev *ndev, u8 dest_host,
+			 u8 dest_gate, u8 pipe);
+int nci_hci_set_param(struct nci_dev *ndev, u8 gate, u8 idx,
+		      const u8 *param, size_t param_len);
+int nci_hci_get_param(struct nci_dev *ndev, u8 gate, u8 idx,
+		      struct sk_buff **skb);
+int nci_hci_clear_all_pipes(struct nci_dev *ndev);
+int nci_hci_dev_session_init(struct nci_dev *ndev);
+
+static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
+					    unsigned int len,
+					    gfp_t how)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(len + ndev->tx_headroom + ndev->tx_tailroom, how);
+	if (skb)
+		skb_reserve(skb, ndev->tx_headroom);
+
+	return skb;
+}
+
+static inline void nci_set_parent_dev(struct nci_dev *ndev, struct device *dev)
+{
+	nfc_set_parent_dev(ndev->nfc_dev, dev);
+}
+
+static inline void nci_set_drvdata(struct nci_dev *ndev, void *data)
+{
+	ndev->driver_data = data;
+}
+
+static inline void *nci_get_drvdata(struct nci_dev *ndev)
+{
+	return ndev->driver_data;
+}
+
+static inline int nci_set_vendor_cmds(struct nci_dev *ndev,
+				      struct nfc_vendor_cmd *cmds,
+				      int n_cmds)
+{
+	return nfc_set_vendor_cmds(ndev->nfc_dev, cmds, n_cmds);
+}
+
+void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb);
+void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+			struct sk_buff *skb);
+int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+			struct sk_buff *skb);
+int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+			struct sk_buff *skb);
+int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+			struct sk_buff *skb);
+void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
+int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
+int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id);
+void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
+				__u8 conn_id, int err);
+void nci_hci_data_received_cb(void *context, struct sk_buff *skb, int err);
+
+void nci_clear_target_list(struct nci_dev *ndev);
+
+/* ----- NCI requests ----- */
+#define NCI_REQ_DONE		0
+#define NCI_REQ_PEND		1
+#define NCI_REQ_CANCELED	2
+
+void nci_req_complete(struct nci_dev *ndev, int result);
+struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev,
+						   int conn_id);
+int nci_get_conn_info_by_dest_type_params(struct nci_dev *ndev, u8 dest_type,
+					  struct dest_spec_params *params);
+
+/* ----- NCI status code ----- */
+int nci_to_errno(__u8 code);
+
+/* ----- NCI over SPI acknowledge modes ----- */
+#define NCI_SPI_CRC_DISABLED	0x00
+#define NCI_SPI_CRC_ENABLED	0x01
+
+/* ----- NCI SPI structures ----- */
+struct nci_spi {
+	struct nci_dev		*ndev;
+	struct spi_device	*spi;
+
+	unsigned int		xfer_udelay;	/* microseconds delay between
+						  transactions */
+
+	unsigned int		xfer_speed_hz; /*
+						* SPI clock frequency
+						* 0 => default clock
+						*/
+
+	u8			acknowledge_mode;
+
+	struct completion	req_completion;
+	u8			req_result;
+};
+
+/* ----- NCI SPI ----- */
+struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
+				     u8 acknowledge_mode, unsigned int delay,
+				     struct nci_dev *ndev);
+int nci_spi_send(struct nci_spi *nspi,
+		 struct completion *write_handshake_completion,
+		 struct sk_buff *skb);
+struct sk_buff *nci_spi_read(struct nci_spi *nspi);
+
+/* ----- NCI UART ---- */
+
+/* Ioctl */
+#define NCIUARTSETDRIVER	_IOW('U', 0, char *)
+
+enum nci_uart_driver {
+	NCI_UART_DRIVER_MARVELL = 0,
+	NCI_UART_DRIVER_MAX
+};
+
+struct nci_uart;
+
+struct nci_uart_ops {
+	int (*open)(struct nci_uart *nci_uart);
+	void (*close)(struct nci_uart *nci_uart);
+	int (*recv)(struct nci_uart *nci_uart, struct sk_buff *skb);
+	int (*recv_buf)(struct nci_uart *nci_uart, const u8 *data, char *flags,
+			int count);
+	int (*send)(struct nci_uart *nci_uart, struct sk_buff *skb);
+	void (*tx_start)(struct nci_uart *nci_uart);
+	void (*tx_done)(struct nci_uart *nci_uart);
+};
+
+struct nci_uart {
+	struct module		*owner;
+	struct nci_uart_ops	ops;
+	const char		*name;
+	enum nci_uart_driver	driver;
+
+	/* Dynamic data */
+	struct nci_dev		*ndev;
+	spinlock_t		rx_lock;
+	struct work_struct	write_work;
+	struct tty_struct	*tty;
+	unsigned long		tx_state;
+	struct sk_buff_head	tx_q;
+	struct sk_buff		*tx_skb;
+	struct sk_buff		*rx_skb;
+	int			rx_packet_len;
+	void			*drv_data;
+};
+
+int nci_uart_register(struct nci_uart *nu);
+void nci_uart_unregister(struct nci_uart *nu);
+void nci_uart_set_config(struct nci_uart *nu, int baudrate, int flow_ctrl);
+
+#endif /* __NCI_CORE_H */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
new file mode 100644
index 000000000..32890e43f
--- /dev/null
+++ b/include/net/nfc/nfc.h
@@ -0,0 +1,352 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ * Copyright (C) 2014 Marvell International Ltd.
+ *
+ * Authors:
+ *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ */
+
+#ifndef __NET_NFC_H
+#define __NET_NFC_H
+
+#include <linux/nfc.h>
+#include <linux/device.h>
+#include <linux/skbuff.h>
+
+#define nfc_dbg(dev, fmt, ...) dev_dbg((dev), "NFC: " fmt, ##__VA_ARGS__)
+#define nfc_info(dev, fmt, ...) dev_info((dev), "NFC: " fmt, ##__VA_ARGS__)
+#define nfc_err(dev, fmt, ...) dev_err((dev), "NFC: " fmt, ##__VA_ARGS__)
+
+struct nfc_phy_ops {
+	int (*write)(void *dev_id, struct sk_buff *skb);
+	int (*enable)(void *dev_id);
+	void (*disable)(void *dev_id);
+};
+
+struct nfc_dev;
+
+/**
+ * data_exchange_cb_t - Definition of nfc_data_exchange callback
+ *
+ * @context: nfc_data_exchange cb_context parameter
+ * @skb: response data
+ * @err: If an error has occurred during data exchange, it is the
+ *	error number. Zero means no error.
+ *
+ * When a rx or tx package is lost or corrupted or the target gets out
+ * of the operating field, err is -EIO.
+ */
+typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb,
+								int err);
+
+typedef void (*se_io_cb_t)(void *context, u8 *apdu, size_t apdu_len, int err);
+
+struct nfc_target;
+
+struct nfc_ops {
+	int (*dev_up)(struct nfc_dev *dev);
+	int (*dev_down)(struct nfc_dev *dev);
+	int (*start_poll)(struct nfc_dev *dev,
+			  u32 im_protocols, u32 tm_protocols);
+	void (*stop_poll)(struct nfc_dev *dev);
+	int (*dep_link_up)(struct nfc_dev *dev, struct nfc_target *target,
+			   u8 comm_mode, u8 *gb, size_t gb_len);
+	int (*dep_link_down)(struct nfc_dev *dev);
+	int (*activate_target)(struct nfc_dev *dev, struct nfc_target *target,
+			       u32 protocol);
+	void (*deactivate_target)(struct nfc_dev *dev,
+				  struct nfc_target *target, u8 mode);
+	int (*im_transceive)(struct nfc_dev *dev, struct nfc_target *target,
+			     struct sk_buff *skb, data_exchange_cb_t cb,
+			     void *cb_context);
+	int (*tm_send)(struct nfc_dev *dev, struct sk_buff *skb);
+	int (*check_presence)(struct nfc_dev *dev, struct nfc_target *target);
+	int (*fw_download)(struct nfc_dev *dev, const char *firmware_name);
+
+	/* Secure Element API */
+	int (*discover_se)(struct nfc_dev *dev);
+	int (*enable_se)(struct nfc_dev *dev, u32 se_idx);
+	int (*disable_se)(struct nfc_dev *dev, u32 se_idx);
+	int (*se_io) (struct nfc_dev *dev, u32 se_idx,
+		      u8 *apdu, size_t apdu_length,
+		      se_io_cb_t cb, void *cb_context);
+};
+
+#define NFC_TARGET_IDX_ANY -1
+#define NFC_MAX_GT_LEN 48
+#define NFC_ATR_RES_GT_OFFSET 15
+#define NFC_ATR_REQ_GT_OFFSET 14
+
+/**
+ * struct nfc_target - NFC target descriptiom
+ *
+ * @sens_res: 2 bytes describing the target SENS_RES response, if the target
+ *	is a type A one. The %sens_res most significant byte must be byte 2
+ *	as described by the NFC Forum digital specification (i.e. the platform
+ *	configuration one) while %sens_res least significant byte is byte 1.
+ */
+struct nfc_target {
+	u32 idx;
+	u32 supported_protocols;
+	u16 sens_res;
+	u8 sel_res;
+	u8 nfcid1_len;
+	u8 nfcid1[NFC_NFCID1_MAXSIZE];
+	u8 nfcid2_len;
+	u8 nfcid2[NFC_NFCID2_MAXSIZE];
+	u8 sensb_res_len;
+	u8 sensb_res[NFC_SENSB_RES_MAXSIZE];
+	u8 sensf_res_len;
+	u8 sensf_res[NFC_SENSF_RES_MAXSIZE];
+	u8 hci_reader_gate;
+	u8 logical_idx;
+	u8 is_iso15693;
+	u8 iso15693_dsfid;
+	u8 iso15693_uid[NFC_ISO15693_UID_MAXSIZE];
+};
+
+/**
+ * nfc_se - A structure for NFC accessible secure elements.
+ *
+ * @idx: The secure element index. User space will enable or
+ *       disable a secure element by its index.
+ * @type: The secure element type. It can be SE_UICC or
+ *        SE_EMBEDDED.
+ * @state: The secure element state, either enabled or disabled.
+ *
+ */
+struct nfc_se {
+	struct list_head list;
+	u32 idx;
+	u16 type;
+	u16 state;
+};
+
+/**
+ * nfc_evt_transaction - A struct for NFC secure element event transaction.
+ *
+ * @aid: The application identifier triggering the event
+ *
+ * @aid_len: The application identifier length [5:16]
+ *
+ * @params: The application parameters transmitted during the transaction
+ *
+ * @params_len: The applications parameters length [0:255]
+ *
+ */
+#define NFC_MIN_AID_LENGTH	5
+#define	NFC_MAX_AID_LENGTH	16
+#define NFC_MAX_PARAMS_LENGTH	255
+
+#define NFC_EVT_TRANSACTION_AID_TAG	0x81
+#define NFC_EVT_TRANSACTION_PARAMS_TAG	0x82
+struct nfc_evt_transaction {
+	u32 aid_len;
+	u8 aid[NFC_MAX_AID_LENGTH];
+	u8 params_len;
+	u8 params[];
+} __packed;
+
+struct nfc_genl_data {
+	u32 poll_req_portid;
+	struct mutex genl_data_mutex;
+};
+
+struct nfc_vendor_cmd {
+	__u32 vendor_id;
+	__u32 subcmd;
+	int (*doit)(struct nfc_dev *dev, void *data, size_t data_len);
+};
+
+struct nfc_dev {
+	int idx;
+	u32 target_next_idx;
+	struct nfc_target *targets;
+	int n_targets;
+	int targets_generation;
+	struct device dev;
+	bool dev_up;
+	bool fw_download_in_progress;
+	u8 rf_mode;
+	bool polling;
+	struct nfc_target *active_target;
+	bool dep_link_up;
+	struct nfc_genl_data genl_data;
+	u32 supported_protocols;
+
+	struct list_head secure_elements;
+
+	int tx_headroom;
+	int tx_tailroom;
+
+	struct timer_list check_pres_timer;
+	struct work_struct check_pres_work;
+
+	bool shutting_down;
+
+	struct rfkill *rfkill;
+
+	struct nfc_vendor_cmd *vendor_cmds;
+	int n_vendor_cmds;
+
+	struct nfc_ops *ops;
+	struct genl_info *cur_cmd_info;
+};
+#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
+
+extern struct class nfc_class;
+
+struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
+				    u32 supported_protocols,
+				    int tx_headroom,
+				    int tx_tailroom);
+
+/**
+ * nfc_free_device - free nfc device
+ *
+ * @dev: The nfc device to free
+ */
+static inline void nfc_free_device(struct nfc_dev *dev)
+{
+	put_device(&dev->dev);
+}
+
+int nfc_register_device(struct nfc_dev *dev);
+
+void nfc_unregister_device(struct nfc_dev *dev);
+
+/**
+ * nfc_set_parent_dev - set the parent device
+ *
+ * @nfc_dev: The nfc device whose parent is being set
+ * @dev: The parent device
+ */
+static inline void nfc_set_parent_dev(struct nfc_dev *nfc_dev,
+				      struct device *dev)
+{
+	nfc_dev->dev.parent = dev;
+}
+
+/**
+ * nfc_set_drvdata - set driver specifc data
+ *
+ * @dev: The nfc device
+ * @data: Pointer to driver specifc data
+ */
+static inline void nfc_set_drvdata(struct nfc_dev *dev, void *data)
+{
+	dev_set_drvdata(&dev->dev, data);
+}
+
+/**
+ * nfc_get_drvdata - get driver specifc data
+ *
+ * @dev: The nfc device
+ */
+static inline void *nfc_get_drvdata(struct nfc_dev *dev)
+{
+	return dev_get_drvdata(&dev->dev);
+}
+
+/**
+ * nfc_device_name - get the nfc device name
+ *
+ * @dev: The nfc device whose name to return
+ */
+static inline const char *nfc_device_name(struct nfc_dev *dev)
+{
+	return dev_name(&dev->dev);
+}
+
+struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
+				   unsigned int flags, unsigned int size,
+				   unsigned int *err);
+struct sk_buff *nfc_alloc_recv_skb(unsigned int size, gfp_t gfp);
+
+int nfc_set_remote_general_bytes(struct nfc_dev *dev,
+				 const u8 *gt, u8 gt_len);
+u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len);
+
+int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
+			 u32 result);
+
+int nfc_targets_found(struct nfc_dev *dev,
+		      struct nfc_target *targets, int ntargets);
+int nfc_target_lost(struct nfc_dev *dev, u32 target_idx);
+
+int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
+		       u8 comm_mode, u8 rf_mode);
+
+int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
+		     const u8 *gb, size_t gb_len);
+int nfc_tm_deactivated(struct nfc_dev *dev);
+int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb);
+
+void nfc_driver_failure(struct nfc_dev *dev, int err);
+
+int nfc_se_transaction(struct nfc_dev *dev, u8 se_idx,
+		       struct nfc_evt_transaction *evt_transaction);
+int nfc_se_connectivity(struct nfc_dev *dev, u8 se_idx);
+int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type);
+int nfc_remove_se(struct nfc_dev *dev, u32 se_idx);
+struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx);
+
+void nfc_send_to_raw_sock(struct nfc_dev *dev, struct sk_buff *skb,
+			  u8 payload_type, u8 direction);
+
+static inline int nfc_set_vendor_cmds(struct nfc_dev *dev,
+				      struct nfc_vendor_cmd *cmds,
+				      int n_cmds)
+{
+	if (dev->vendor_cmds || dev->n_vendor_cmds)
+		return -EINVAL;
+
+	dev->vendor_cmds = cmds;
+	dev->n_vendor_cmds = n_cmds;
+
+	return 0;
+}
+
+struct sk_buff *__nfc_alloc_vendor_cmd_reply_skb(struct nfc_dev *dev,
+						 enum nfc_attrs attr,
+						 u32 oui, u32 subcmd,
+						 int approxlen);
+int nfc_vendor_cmd_reply(struct sk_buff *skb);
+
+/**
+ * nfc_vendor_cmd_alloc_reply_skb - allocate vendor command reply
+ * @dev: nfc device
+ * @oui: vendor oui
+ * @approxlen: an upper bound of the length of the data that will
+ *      be put into the skb
+ *
+ * This function allocates and pre-fills an skb for a reply to
+ * a vendor command. Since it is intended for a reply, calling
+ * it outside of a vendor command's doit() operation is invalid.
+ *
+ * The returned skb is pre-filled with some identifying data in
+ * a way that any data that is put into the skb (with skb_put(),
+ * nla_put() or similar) will end up being within the
+ * %NFC_ATTR_VENDOR_DATA attribute, so all that needs to be done
+ * with the skb is adding data for the corresponding userspace tool
+ * which can then read that data out of the vendor data attribute.
+ * You must not modify the skb in any other way.
+ *
+ * When done, call nfc_vendor_cmd_reply() with the skb and return
+ * its error code as the result of the doit() operation.
+ *
+ * Return: An allocated and pre-filled skb. %NULL if any errors happen.
+ */
+static inline struct sk_buff *
+nfc_vendor_cmd_alloc_reply_skb(struct nfc_dev *dev,
+				u32 oui, u32 subcmd, int approxlen)
+{
+	return __nfc_alloc_vendor_cmd_reply_skb(dev,
+						NFC_ATTR_VENDOR_DATA,
+						oui,
+						subcmd, approxlen);
+}
+
+#endif /* __NET_NFC_H */