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, write to the
  16  * Free Software Foundation, Inc.,
  17  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __LOCAL_HCI_H
  21 #define __LOCAL_HCI_H
  22
  23 #include <net/nfc/hci.h>
  24
  25 struct gate_pipe_map {
  26         u8 gate;
  27         u8 pipe;
  28 };
  29
  30 struct hcp_message {
  31         u8 header;              /* type -cmd,evt,rsp- + instruction */
  32         u8 data[];
  33 } __packed;
  34
  35 struct hcp_packet {
  36         u8 header;              /* cbit+pipe */
  37         struct hcp_message message;
  38 } __packed;
  39
  40 struct hcp_exec_waiter {
  41         wait_queue_head_t *wq;
  42         bool exec_complete;
  43         int exec_result;
  44         struct sk_buff *result_skb;
  45 };
  46
  47 struct hci_msg {
  48         struct list_head msg_l;
  49         struct sk_buff_head msg_frags;
  50         bool wait_response;
  51         data_exchange_cb_t cb;
  52         void *cb_context;
  53         unsigned long completion_delay;
  54 };
  55
  56 struct hci_create_pipe_params {
  57         u8 src_gate;
  58         u8 dest_host;
  59         u8 dest_gate;
  60 } __packed;
  61
  62 struct hci_create_pipe_resp {
  63         u8 src_host;
  64         u8 src_gate;
  65         u8 dest_host;
  66         u8 dest_gate;
  67         u8 pipe;
  68 } __packed;
  69
  70 #define NFC_HCI_FRAGMENT        0x7f
  71
  72 #define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
  73 #define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
  74 #define HCP_MSG_GET_CMD(header) (header & 0x3f)
  75
  76 int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
  77                            u8 type, u8 instruction,
  78                            const u8 *payload, size_t payload_len,
  79                            data_exchange_cb_t cb, void *cb_context,
  80                            unsigned long completion_delay);
  81
  82 u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe);
  83
  84 void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
  85                             u8 instruction, struct sk_buff *skb);
  86
  87 /* HCP headers */
  88 #define NFC_HCI_HCP_PACKET_HEADER_LEN   1
  89 #define NFC_HCI_HCP_MESSAGE_HEADER_LEN  1
  90 #define NFC_HCI_HCP_HEADER_LEN          2
  91
  92 /* HCP types */
  93 #define NFC_HCI_HCP_COMMAND     0x00
  94 #define NFC_HCI_HCP_EVENT       0x01
  95 #define NFC_HCI_HCP_RESPONSE    0x02
  96
  97 /* Generic commands */
  98 #define NFC_HCI_ANY_SET_PARAMETER       0x01
  99 #define NFC_HCI_ANY_GET_PARAMETER       0x02
 100 #define NFC_HCI_ANY_OPEN_PIPE           0x03
 101 #define NFC_HCI_ANY_CLOSE_PIPE          0x04
 102
 103 /* Reader RF commands */
 104 #define NFC_HCI_WR_XCHG_DATA            0x10
 105
 106 /* Admin commands */
 107 #define NFC_HCI_ADM_CREATE_PIPE                 0x10
 108 #define NFC_HCI_ADM_DELETE_PIPE                 0x11
 109 #define NFC_HCI_ADM_NOTIFY_PIPE_CREATED         0x12
 110 #define NFC_HCI_ADM_NOTIFY_PIPE_DELETED         0x13
 111 #define NFC_HCI_ADM_CLEAR_ALL_PIPE              0x14
 112 #define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED     0x15
 113
 114 /* Generic responses */
 115 #define NFC_HCI_ANY_OK                          0x00
 116 #define NFC_HCI_ANY_E_NOT_CONNECTED             0x01
 117 #define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN           0x02
 118 #define NFC_HCI_ANY_E_NOK                       0x03
 119 #define NFC_HCI_ANY_E_PIPES_FULL                0x04
 120 #define NFC_HCI_ANY_E_REG_PAR_UNKNOWN           0x05
 121 #define NFC_HCI_ANY_E_PIPE_NOT_OPENED           0x06
 122 #define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED         0x07
 123 #define NFC_HCI_ANY_E_INHIBITED                 0x08
 124 #define NFC_HCI_ANY_E_TIMEOUT                   0x09
 125 #define NFC_HCI_ANY_E_REG_ACCESS_DENIED         0x0a
 126 #define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED        0x0b
 127
 128 #endif /* __LOCAL_HCI_H */