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
  11 struct gate_pipe_map {
  12         u8 gate;
  13         u8 pipe;
  14 };
  15
  16 struct hcp_message {
  17         u8 header;              /* type -cmd,evt,rsp- + instruction */
  18         u8 data[];
  19 } __packed;
  20
  21 struct hcp_packet {
  22         u8 header;              /* cbit+pipe */
  23         struct hcp_message message;
  24 } __packed;
  25
  26 struct 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
  33 struct 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
  42 struct hci_create_pipe_params {
  43         u8 src_gate;
  44         u8 dest_host;
  45         u8 dest_gate;
  46 } __packed;
  47
  48 struct 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
  56 struct hci_delete_pipe_noti {
  57         u8 pipe;
  58 } __packed;
  59
  60 struct 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
  70 int 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
  76 void 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 */