1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * Copyright (C) 2012  Intel Corporation. All rights reserved.
  4 */
  5
  6#ifndef __LOCAL_HCI_H
  7#define __LOCAL_HCI_H
  8
  9#include <net/nfc/hci.h>
 10
 11struct gate_pipe_map {
 12	u8 gate;
 13	u8 pipe;
 14};
 15
 16struct hcp_message {
 17	u8 header;		/* type -cmd,evt,rsp- + instruction */
 18	u8 data[];
 19} __packed;
 20
 21struct hcp_packet {
 22	u8 header;		/* cbit+pipe */
 23	struct hcp_message message;
 24} __packed;
 25
 26struct hcp_exec_waiter {
 27	wait_queue_head_t *wq;
 28	bool exec_complete;
 29	int exec_result;
 30	struct sk_buff *result_skb;
 31};
 32
 33struct hci_msg {
 34	struct list_head msg_l;
 35	struct sk_buff_head msg_frags;
 36	bool wait_response;
 37	data_exchange_cb_t cb;
 38	void *cb_context;
 39	unsigned long completion_delay;
 40};
 41
 42struct hci_create_pipe_params {
 43	u8 src_gate;
 44	u8 dest_host;
 45	u8 dest_gate;
 46} __packed;
 47
 48struct hci_create_pipe_resp {
 49	u8 src_host;
 50	u8 src_gate;
 51	u8 dest_host;
 52	u8 dest_gate;
 53	u8 pipe;
 54} __packed;
 55
 56struct hci_delete_pipe_noti {
 57	u8 pipe;
 58} __packed;
 59
 60struct hci_all_pipe_cleared_noti {
 61	u8 host;
 62} __packed;
 63
 64#define NFC_HCI_FRAGMENT	0x7f
 65
 66#define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
 67#define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
 68#define HCP_MSG_GET_CMD(header) (header & 0x3f)
 69
 70int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
 71			   u8 type, u8 instruction,
 72			   const u8 *payload, size_t payload_len,
 73			   data_exchange_cb_t cb, void *cb_context,
 74			   unsigned long completion_delay);
 75
 76void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
 77			    u8 instruction, struct sk_buff *skb);
 78
 79/* HCP headers */
 80#define NFC_HCI_HCP_PACKET_HEADER_LEN	1
 81#define NFC_HCI_HCP_MESSAGE_HEADER_LEN	1
 82#define NFC_HCI_HCP_HEADER_LEN		2
 83
 84/* HCP types */
 85#define NFC_HCI_HCP_COMMAND	0x00
 86#define NFC_HCI_HCP_EVENT	0x01
 87#define NFC_HCI_HCP_RESPONSE	0x02
 88
 89/* Generic commands */
 90#define NFC_HCI_ANY_SET_PARAMETER	0x01
 91#define NFC_HCI_ANY_GET_PARAMETER	0x02
 92#define NFC_HCI_ANY_OPEN_PIPE		0x03
 93#define NFC_HCI_ANY_CLOSE_PIPE		0x04
 94
 95/* Reader RF commands */
 96#define NFC_HCI_WR_XCHG_DATA		0x10
 97
 98/* Admin commands */
 99#define NFC_HCI_ADM_CREATE_PIPE			0x10
100#define NFC_HCI_ADM_DELETE_PIPE			0x11
101#define NFC_HCI_ADM_NOTIFY_PIPE_CREATED		0x12
102#define NFC_HCI_ADM_NOTIFY_PIPE_DELETED		0x13
103#define NFC_HCI_ADM_CLEAR_ALL_PIPE		0x14
104#define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED	0x15
105
106/* Generic responses */
107#define NFC_HCI_ANY_OK				0x00
108#define NFC_HCI_ANY_E_NOT_CONNECTED		0x01
109#define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN		0x02
110#define NFC_HCI_ANY_E_NOK			0x03
111#define NFC_HCI_ANY_E_PIPES_FULL		0x04
112#define NFC_HCI_ANY_E_REG_PAR_UNKNOWN		0x05
113#define NFC_HCI_ANY_E_PIPE_NOT_OPENED		0x06
114#define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED		0x07
115#define NFC_HCI_ANY_E_INHIBITED			0x08
116#define NFC_HCI_ANY_E_TIMEOUT			0x09
117#define NFC_HCI_ANY_E_REG_ACCESS_DENIED		0x0a
118#define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED	0x0b
119
120#endif /* __LOCAL_HCI_H */