LXR linux/net/nfc/hci/hci.h

   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 */
 121