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 struct gate_pipe_map { 24 u8 gate; 25 u8 pipe; 26 }; 27 28 struct hcp_message { 29 u8 header; /* type -cmd,evt,rsp- + instruction */ 30 u8 data[]; 31 } __packed; 32 33 struct hcp_packet { 34 u8 header; /* cbit+pipe */ 35 struct hcp_message message; 36 } __packed; 37 38 /* 39 * HCI command execution completion callback. 40 * result will be one of the HCI response codes. 41 * skb contains the response data and must be disposed. 42 */ 43 typedef void (*hci_cmd_cb_t) (struct nfc_hci_dev *hdev, u8 result, 44 struct sk_buff *skb, void *cb_data); 45 46 struct hcp_exec_waiter { 47 wait_queue_head_t *wq; 48 bool exec_complete; 49 int exec_result; 50 struct sk_buff *result_skb; 51 }; 52 53 struct hci_msg { 54 struct list_head msg_l; 55 struct sk_buff_head msg_frags; 56 bool wait_response; 57 hci_cmd_cb_t cb; 58 void *cb_context; 59 unsigned long completion_delay; 60 }; 61 62 struct hci_create_pipe_params { 63 u8 src_gate; 64 u8 dest_host; 65 u8 dest_gate; 66 } __packed; 67 68 struct hci_create_pipe_resp { 69 u8 src_host; 70 u8 src_gate; 71 u8 dest_host; 72 u8 dest_gate; 73 u8 pipe; 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 82 int 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 hci_cmd_cb_t cb, void *cb_data, 86 unsigned long completion_delay); 87 88 u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe); 89 90 void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type, 91 u8 instruction, struct sk_buff *skb); 92 93 /* HCP headers */ 94 #define NFC_HCI_HCP_PACKET_HEADER_LEN 1 95 #define NFC_HCI_HCP_MESSAGE_HEADER_LEN 1 96 #define NFC_HCI_HCP_HEADER_LEN 2 97 98 /* HCP types */ 99 #define NFC_HCI_HCP_COMMAND 0x00 100 #define NFC_HCI_HCP_EVENT 0x01 101 #define NFC_HCI_HCP_RESPONSE 0x02 102 103 /* Generic commands */ 104 #define NFC_HCI_ANY_SET_PARAMETER 0x01 105 #define NFC_HCI_ANY_GET_PARAMETER 0x02 106 #define NFC_HCI_ANY_OPEN_PIPE 0x03 107 #define NFC_HCI_ANY_CLOSE_PIPE 0x04 108 109 /* Reader RF commands */ 110 #define NFC_HCI_WR_XCHG_DATA 0x10 111 112 /* Admin commands */ 113 #define NFC_HCI_ADM_CREATE_PIPE 0x10 114 #define NFC_HCI_ADM_DELETE_PIPE 0x11 115 #define NFC_HCI_ADM_NOTIFY_PIPE_CREATED 0x12 116 #define NFC_HCI_ADM_NOTIFY_PIPE_DELETED 0x13 117 #define NFC_HCI_ADM_CLEAR_ALL_PIPE 0x14 118 #define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED 0x15 119 120 /* Generic responses */ 121 #define NFC_HCI_ANY_OK 0x00 122 #define NFC_HCI_ANY_E_NOT_CONNECTED 0x01 123 #define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02 124 #define NFC_HCI_ANY_E_NOK 0x03 125 #define NFC_HCI_ANY_E_PIPES_FULL 0x04 126 #define NFC_HCI_ANY_E_REG_PAR_UNKNOWN 0x05 127 #define NFC_HCI_ANY_E_PIPE_NOT_OPENED 0x06 128 #define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07 129 #define NFC_HCI_ANY_E_INHIBITED 0x08 130 #define NFC_HCI_ANY_E_TIMEOUT 0x09 131 #define NFC_HCI_ANY_E_REG_ACCESS_DENIED 0x0a 132 #define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b 133 134 /* Pipes */ 135 #define NFC_HCI_INVALID_PIPE 0x80 136 #define NFC_HCI_LINK_MGMT_PIPE 0x00 137 #define NFC_HCI_ADMIN_PIPE 0x01 138 139 #endif /* __LOCAL_HCI_H */ 140