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 a standard linux error (may be converted from HCI response) 41 * skb contains the response data and must be disposed, or may be NULL if 42 * an error occured 43 */ 44 typedef void (*hci_cmd_cb_t) (struct nfc_hci_dev *hdev, int result, 45 struct sk_buff *skb, void *cb_data); 46 47 struct hcp_exec_waiter { 48 wait_queue_head_t *wq; 49 bool exec_complete; 50 int exec_result; 51 struct sk_buff *result_skb; 52 }; 53 54 struct hci_msg { 55 struct list_head msg_l; 56 struct sk_buff_head msg_frags; 57 bool wait_response; 58 hci_cmd_cb_t cb; 59 void *cb_context; 60 unsigned long completion_delay; 61 }; 62 63 struct hci_create_pipe_params { 64 u8 src_gate; 65 u8 dest_host; 66 u8 dest_gate; 67 } __packed; 68 69 struct hci_create_pipe_resp { 70 u8 src_host; 71 u8 src_gate; 72 u8 dest_host; 73 u8 dest_gate; 74 u8 pipe; 75 } __packed; 76 77 #define NFC_HCI_FRAGMENT 0x7f 78 79 #define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f)) 80 #define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6) 81 #define HCP_MSG_GET_CMD(header) (header & 0x3f) 82 83 int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe, 84 u8 type, u8 instruction, 85 const u8 *payload, size_t payload_len, 86 hci_cmd_cb_t cb, void *cb_data, 87 unsigned long completion_delay); 88 89 u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe); 90 91 void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type, 92 u8 instruction, struct sk_buff *skb); 93 94 /* HCP headers */ 95 #define NFC_HCI_HCP_PACKET_HEADER_LEN 1 96 #define NFC_HCI_HCP_MESSAGE_HEADER_LEN 1 97 #define NFC_HCI_HCP_HEADER_LEN 2 98 99 /* HCP types */ 100 #define NFC_HCI_HCP_COMMAND 0x00 101 #define NFC_HCI_HCP_EVENT 0x01 102 #define NFC_HCI_HCP_RESPONSE 0x02 103 104 /* Generic commands */ 105 #define NFC_HCI_ANY_SET_PARAMETER 0x01 106 #define NFC_HCI_ANY_GET_PARAMETER 0x02 107 #define NFC_HCI_ANY_OPEN_PIPE 0x03 108 #define NFC_HCI_ANY_CLOSE_PIPE 0x04 109 110 /* Reader RF commands */ 111 #define NFC_HCI_WR_XCHG_DATA 0x10 112 113 /* Admin commands */ 114 #define NFC_HCI_ADM_CREATE_PIPE 0x10 115 #define NFC_HCI_ADM_DELETE_PIPE 0x11 116 #define NFC_HCI_ADM_NOTIFY_PIPE_CREATED 0x12 117 #define NFC_HCI_ADM_NOTIFY_PIPE_DELETED 0x13 118 #define NFC_HCI_ADM_CLEAR_ALL_PIPE 0x14 119 #define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED 0x15 120 121 /* Generic responses */ 122 #define NFC_HCI_ANY_OK 0x00 123 #define NFC_HCI_ANY_E_NOT_CONNECTED 0x01 124 #define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02 125 #define NFC_HCI_ANY_E_NOK 0x03 126 #define NFC_HCI_ANY_E_PIPES_FULL 0x04 127 #define NFC_HCI_ANY_E_REG_PAR_UNKNOWN 0x05 128 #define NFC_HCI_ANY_E_PIPE_NOT_OPENED 0x06 129 #define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07 130 #define NFC_HCI_ANY_E_INHIBITED 0x08 131 #define NFC_HCI_ANY_E_TIMEOUT 0x09 132 #define NFC_HCI_ANY_E_REG_ACCESS_DENIED 0x0a 133 #define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b 134 135 #endif /* __LOCAL_HCI_H */ 136