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

   1/*
   2 * Copyright (C) 2012  Intel Corporation. All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18#ifndef __LOCAL_HCI_H
  19#define __LOCAL_HCI_H
  20
  21#include <net/nfc/hci.h>
  22
  23struct gate_pipe_map {
  24        u8 gate;
  25        u8 pipe;
  26};
  27
  28struct hcp_message {
  29        u8 header;              /* type -cmd,evt,rsp- + instruction */
  30        u8 data[];
  31} __packed;
  32
  33struct hcp_packet {
  34        u8 header;              /* cbit+pipe */
  35        struct hcp_message message;
  36} __packed;
  37
  38struct hcp_exec_waiter {
  39        wait_queue_head_t *wq;
  40        bool exec_complete;
  41        int exec_result;
  42        struct sk_buff *result_skb;
  43};
  44
  45struct hci_msg {
  46        struct list_head msg_l;
  47        struct sk_buff_head msg_frags;
  48        bool wait_response;
  49        data_exchange_cb_t cb;
  50        void *cb_context;
  51        unsigned long completion_delay;
  52};
  53
  54struct hci_create_pipe_params {
  55        u8 src_gate;
  56        u8 dest_host;
  57        u8 dest_gate;
  58} __packed;
  59
  60struct hci_create_pipe_resp {
  61        u8 src_host;
  62        u8 src_gate;
  63        u8 dest_host;
  64        u8 dest_gate;
  65        u8 pipe;
  66} __packed;
  67
  68struct hci_delete_pipe_noti {
  69        u8 pipe;
  70} __packed;
  71
  72struct hci_all_pipe_cleared_noti {
  73        u8 host;
  74} __packed;
  75
  76#define NFC_HCI_FRAGMENT        0x7f
  77
  78#define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
  79#define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
  80#define HCP_MSG_GET_CMD(header) (header & 0x3f)
  81
  82int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
  83                           u8 type, u8 instruction,
  84                           const u8 *payload, size_t payload_len,
  85                           data_exchange_cb_t cb, void *cb_context,
  86                           unsigned long completion_delay);
  87
  88void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
  89                            u8 instruction, struct sk_buff *skb);
  90
  91/* HCP headers */
  92#define NFC_HCI_HCP_PACKET_HEADER_LEN   1
  93#define NFC_HCI_HCP_MESSAGE_HEADER_LEN  1
  94#define NFC_HCI_HCP_HEADER_LEN          2
  95
  96/* HCP types */
  97#define NFC_HCI_HCP_COMMAND     0x00
  98#define NFC_HCI_HCP_EVENT       0x01
  99#define NFC_HCI_HCP_RESPONSE    0x02
 100
 101/* Generic commands */
 102#define NFC_HCI_ANY_SET_PARAMETER       0x01
 103#define NFC_HCI_ANY_GET_PARAMETER       0x02
 104#define NFC_HCI_ANY_OPEN_PIPE           0x03
 105#define NFC_HCI_ANY_CLOSE_PIPE          0x04
 106
 107/* Reader RF commands */
 108#define NFC_HCI_WR_XCHG_DATA            0x10
 109
 110/* Admin commands */
 111#define NFC_HCI_ADM_CREATE_PIPE                 0x10
 112#define NFC_HCI_ADM_DELETE_PIPE                 0x11
 113#define NFC_HCI_ADM_NOTIFY_PIPE_CREATED         0x12
 114#define NFC_HCI_ADM_NOTIFY_PIPE_DELETED         0x13
 115#define NFC_HCI_ADM_CLEAR_ALL_PIPE              0x14
 116#define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED     0x15
 117
 118/* Generic responses */
 119#define NFC_HCI_ANY_OK                          0x00
 120#define NFC_HCI_ANY_E_NOT_CONNECTED             0x01
 121#define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN           0x02
 122#define NFC_HCI_ANY_E_NOK                       0x03
 123#define NFC_HCI_ANY_E_PIPES_FULL                0x04
 124#define NFC_HCI_ANY_E_REG_PAR_UNKNOWN           0x05
 125#define NFC_HCI_ANY_E_PIPE_NOT_OPENED           0x06
 126#define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED         0x07
 127#define NFC_HCI_ANY_E_INHIBITED                 0x08
 128#define NFC_HCI_ANY_E_TIMEOUT                   0x09
 129#define NFC_HCI_ANY_E_REG_ACCESS_DENIED         0x0a
 130#define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED        0x0b
 131
 132#endif /* __LOCAL_HCI_H */
 133