Norimasa Okamoto / Mbed 2 deprecated BTstack

BTstack Bluetooth stack

Dependencies:   mbed USBHost

USBホストライブラリを変更しました。

  • Bluetoothマウス(VGP-BMS33)での動作を確認しました。mouse_demo.cpp

BTstack/l2cap.h@2:871b41f4789e, 2013-03-22 (annotated)

Committer:
va009039
Date:
Fri Mar 22 22:35:57 2013 +0000
Revision:
2:871b41f4789e
Parent:
0:1ed23ab1345f 
change to single thread

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:1ed23ab1345f 1 /*
va009039 0:1ed23ab1345f 2 * Copyright (C) 2009-2012 by Matthias Ringwald
va009039 0:1ed23ab1345f 3 *
va009039 0:1ed23ab1345f 4 * Redistribution and use in source and binary forms, with or without
va009039 0:1ed23ab1345f 5 * modification, are permitted provided that the following conditions
va009039 0:1ed23ab1345f 6 * are met:
va009039 0:1ed23ab1345f 7 *
va009039 0:1ed23ab1345f 8 * 1. Redistributions of source code must retain the above copyright
va009039 0:1ed23ab1345f 9 * notice, this list of conditions and the following disclaimer.
va009039 0:1ed23ab1345f 10 * 2. Redistributions in binary form must reproduce the above copyright
va009039 0:1ed23ab1345f 11 * notice, this list of conditions and the following disclaimer in the
va009039 0:1ed23ab1345f 12 * documentation and/or other materials provided with the distribution.
va009039 0:1ed23ab1345f 13 * 3. Neither the name of the copyright holders nor the names of
va009039 0:1ed23ab1345f 14 * contributors may be used to endorse or promote products derived
va009039 0:1ed23ab1345f 15 * from this software without specific prior written permission.
va009039 0:1ed23ab1345f 16 * 4. Any redistribution, use, or modification is done solely for
va009039 0:1ed23ab1345f 17 * personal benefit and not for any commercial purpose or for
va009039 0:1ed23ab1345f 18 * monetary gain.
va009039 0:1ed23ab1345f 19 *
va009039 0:1ed23ab1345f 20 * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
va009039 0:1ed23ab1345f 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
va009039 0:1ed23ab1345f 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
va009039 0:1ed23ab1345f 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
va009039 0:1ed23ab1345f 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
va009039 0:1ed23ab1345f 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
va009039 0:1ed23ab1345f 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
va009039 0:1ed23ab1345f 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
va009039 0:1ed23ab1345f 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
va009039 0:1ed23ab1345f 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
va009039 0:1ed23ab1345f 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
va009039 0:1ed23ab1345f 31 * SUCH DAMAGE.
va009039 0:1ed23ab1345f 32 *
va009039 0:1ed23ab1345f 33 * Please inquire about commercial licensing options at btstack@ringwald.ch
va009039 0:1ed23ab1345f 34 *
va009039 0:1ed23ab1345f 35 */
va009039 0:1ed23ab1345f 36
va009039 0:1ed23ab1345f 37 /*
va009039 0:1ed23ab1345f 38 * l2cap.h
va009039 0:1ed23ab1345f 39 *
va009039 0:1ed23ab1345f 40 * Logical Link Control and Adaption Protocl (L2CAP)
va009039 0:1ed23ab1345f 41 *
va009039 0:1ed23ab1345f 42 * Created by Matthias Ringwald on 5/16/09.
va009039 0:1ed23ab1345f 43 */
va009039 0:1ed23ab1345f 44
va009039 0:1ed23ab1345f 45 #pragma once
va009039 0:1ed23ab1345f 46
va009039 0:1ed23ab1345f 47 #include "hci.h"
va009039 0:1ed23ab1345f 48 #include "l2cap_signaling.h"
va009039 0:1ed23ab1345f 49 #include <btstack/utils.h>
va009039 0:1ed23ab1345f 50 #include <btstack/btstack.h>
va009039 0:1ed23ab1345f 51
va009039 0:1ed23ab1345f 52 #if defined __cplusplus
va009039 0:1ed23ab1345f 53 extern "C" {
va009039 0:1ed23ab1345f 54 #endif
va009039 0:1ed23ab1345f 55
va009039 0:1ed23ab1345f 56 #define L2CAP_SIG_ID_INVALID 0
va009039 0:1ed23ab1345f 57
va009039 0:1ed23ab1345f 58 #define L2CAP_HEADER_SIZE 4
va009039 0:1ed23ab1345f 59
va009039 0:1ed23ab1345f 60 // size of HCI ACL + L2CAP Header for regular data packets (8)
va009039 0:1ed23ab1345f 61 #define COMPLETE_L2CAP_HEADER (HCI_ACL_HEADER_SIZE + L2CAP_HEADER_SIZE)
va009039 0:1ed23ab1345f 62
va009039 0:1ed23ab1345f 63 // minimum signaling MTU
va009039 0:1ed23ab1345f 64 #define L2CAP_MINIMAL_MTU 48
va009039 0:1ed23ab1345f 65 #define L2CAP_DEFAULT_MTU 672
va009039 0:1ed23ab1345f 66
va009039 0:1ed23ab1345f 67 // check L2CAP MTU
va009039 0:1ed23ab1345f 68 #if (L2CAP_MINIMAL_MTU + L2CAP_HEADER_SIZE) > HCI_ACL_PAYLOAD_SIZE
va009039 0:1ed23ab1345f 69 #error "HCI_ACL_PAYLOAD_SIZE too small for minimal L2CAP MTU of 48 bytes"
va009039 0:1ed23ab1345f 70 #endif
va009039 0:1ed23ab1345f 71
va009039 0:1ed23ab1345f 72 // L2CAP Fixed Channel IDs
va009039 0:1ed23ab1345f 73 #define L2CAP_CID_SIGNALING 0x0001
va009039 0:1ed23ab1345f 74 #define L2CAP_CID_CONNECTIONLESS_CHANNEL 0x0002
va009039 0:1ed23ab1345f 75 #define L2CAP_CID_ATTRIBUTE_PROTOCOL 0x0004
va009039 0:1ed23ab1345f 76 #define L2CAP_CID_SIGNALING_LE 0x0005
va009039 0:1ed23ab1345f 77 #define L2CAP_CID_SECURITY_MANAGER_PROTOCOL 0x0006
va009039 0:1ed23ab1345f 78
va009039 0:1ed23ab1345f 79 void l2cap_init(void);
va009039 0:1ed23ab1345f 80 void l2cap_register_packet_handler(void (*handler)(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size));
va009039 0:1ed23ab1345f 81 void l2cap_create_channel_internal(void * connection, btstack_packet_handler_t packet_handler, bd_addr_t address, uint16_t psm, uint16_t mtu);
va009039 0:1ed23ab1345f 82 void l2cap_disconnect_internal(uint16_t local_cid, uint8_t reason);
va009039 0:1ed23ab1345f 83 uint16_t l2cap_get_remote_mtu_for_local_cid(uint16_t local_cid);
va009039 0:1ed23ab1345f 84 uint16_t l2cap_max_mtu(void);
va009039 0:1ed23ab1345f 85
va009039 0:1ed23ab1345f 86 void l2cap_block_new_credits(uint8_t blocked);
va009039 0:1ed23ab1345f 87 int l2cap_can_send_packet_now(uint16_t local_cid); // non-blocking UART write
va009039 0:1ed23ab1345f 88
va009039 0:1ed23ab1345f 89 // get outgoing buffer and prepare data
va009039 0:1ed23ab1345f 90 uint8_t *l2cap_get_outgoing_buffer(void);
va009039 0:1ed23ab1345f 91
va009039 0:1ed23ab1345f 92 int l2cap_send_prepared(uint16_t local_cid, uint16_t len);
va009039 0:1ed23ab1345f 93 int l2cap_send_internal(uint16_t local_cid, uint8_t *data, uint16_t len);
va009039 0:1ed23ab1345f 94
va009039 0:1ed23ab1345f 95 int l2cap_send_prepared_connectionless(uint16_t handle, uint16_t cid, uint16_t len);
va009039 0:1ed23ab1345f 96 int l2cap_send_connectionless(uint16_t handle, uint16_t cid, uint8_t *data, uint16_t len);
va009039 0:1ed23ab1345f 97
va009039 0:1ed23ab1345f 98 void l2cap_close_connection(void *connection);
va009039 0:1ed23ab1345f 99
va009039 0:1ed23ab1345f 100 void l2cap_register_service_internal(void *connection, btstack_packet_handler_t packet_handler, uint16_t psm, uint16_t mtu);
va009039 0:1ed23ab1345f 101 void l2cap_unregister_service_internal(void *connection, uint16_t psm);
va009039 0:1ed23ab1345f 102
va009039 0:1ed23ab1345f 103 void l2cap_accept_connection_internal(uint16_t local_cid);
va009039 0:1ed23ab1345f 104 void l2cap_decline_connection_internal(uint16_t local_cid, uint8_t reason);
va009039 0:1ed23ab1345f 105
va009039 0:1ed23ab1345f 106 // Bluetooth 4.0 - allows to register handler for Attribute Protocol and Security Manager Protocol
va009039 0:1ed23ab1345f 107 void l2cap_register_fixed_channel(btstack_packet_handler_t packet_handler, uint16_t channel_id);
va009039 0:1ed23ab1345f 108
va009039 0:1ed23ab1345f 109
va009039 0:1ed23ab1345f 110 // private structs
va009039 0:1ed23ab1345f 111 typedef enum {
va009039 0:1ed23ab1345f 112 L2CAP_STATE_CLOSED = 1, // no baseband
va009039 0:1ed23ab1345f 113 L2CAP_STATE_WILL_SEND_CREATE_CONNECTION,
va009039 0:1ed23ab1345f 114 L2CAP_STATE_WAIT_CONNECTION_COMPLETE,
va009039 0:1ed23ab1345f 115 L2CAP_STATE_WAIT_CLIENT_ACCEPT_OR_REJECT,
va009039 0:1ed23ab1345f 116 L2CAP_STATE_WAIT_CONNECT_RSP, // from peer
va009039 0:1ed23ab1345f 117 L2CAP_STATE_CONFIG,
va009039 0:1ed23ab1345f 118 L2CAP_STATE_OPEN,
va009039 0:1ed23ab1345f 119 L2CAP_STATE_WAIT_DISCONNECT, // from application
va009039 0:1ed23ab1345f 120 L2CAP_STATE_WILL_SEND_CONNECTION_REQUEST,
va009039 0:1ed23ab1345f 121 L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_DECLINE,
va009039 0:1ed23ab1345f 122 L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_ACCEPT,
va009039 0:1ed23ab1345f 123 L2CAP_STATE_WILL_SEND_DISCONNECT_REQUEST,
va009039 0:1ed23ab1345f 124 L2CAP_STATE_WILL_SEND_DISCONNECT_RESPONSE,
va009039 0:1ed23ab1345f 125 } L2CAP_STATE;
va009039 0:1ed23ab1345f 126
va009039 0:1ed23ab1345f 127 typedef enum {
va009039 0:1ed23ab1345f 128 L2CAP_CHANNEL_STATE_VAR_NONE = 0,
va009039 0:1ed23ab1345f 129 L2CAP_CHANNEL_STATE_VAR_RCVD_CONF_REQ = 1 << 0,
va009039 0:1ed23ab1345f 130 L2CAP_CHANNEL_STATE_VAR_RCVD_CONF_RSP = 1 << 1,
va009039 0:1ed23ab1345f 131 L2CAP_CHANNEL_STATE_VAR_SEND_CONF_REQ = 1 << 2,
va009039 0:1ed23ab1345f 132 L2CAP_CHANNEL_STATE_VAR_SEND_CONF_RSP = 1 << 3,
va009039 0:1ed23ab1345f 133 L2CAP_CHANNEL_STATE_VAR_SENT_CONF_REQ = 1 << 4,
va009039 0:1ed23ab1345f 134 L2CAP_CHANNEL_STATE_VAR_SENT_CONF_RSP = 1 << 5,
va009039 0:1ed23ab1345f 135 } L2CAP_CHANNEL_STATE_VAR;
va009039 0:1ed23ab1345f 136
va009039 0:1ed23ab1345f 137 // info regarding an actual coneection
va009039 0:1ed23ab1345f 138 typedef struct {
va009039 0:1ed23ab1345f 139 // linked list - assert: first field
va009039 0:1ed23ab1345f 140 linked_item_t item;
va009039 0:1ed23ab1345f 141
va009039 0:1ed23ab1345f 142 L2CAP_STATE state;
va009039 0:1ed23ab1345f 143 L2CAP_CHANNEL_STATE_VAR state_var;
va009039 0:1ed23ab1345f 144
va009039 0:1ed23ab1345f 145 bd_addr_t address;
va009039 0:1ed23ab1345f 146 hci_con_handle_t handle;
va009039 0:1ed23ab1345f 147
va009039 0:1ed23ab1345f 148 uint8_t remote_sig_id; // used by other side, needed for delayed response
va009039 0:1ed23ab1345f 149 uint8_t local_sig_id; // own signaling identifier
va009039 0:1ed23ab1345f 150
va009039 0:1ed23ab1345f 151 uint16_t local_cid;
va009039 0:1ed23ab1345f 152 uint16_t remote_cid;
va009039 0:1ed23ab1345f 153
va009039 0:1ed23ab1345f 154 uint16_t local_mtu;
va009039 0:1ed23ab1345f 155 uint16_t remote_mtu;
va009039 0:1ed23ab1345f 156
va009039 0:1ed23ab1345f 157 uint16_t psm;
va009039 0:1ed23ab1345f 158
va009039 0:1ed23ab1345f 159 uint8_t packets_granted; // number of L2CAP/ACL packets client is allowed to send
va009039 0:1ed23ab1345f 160
va009039 0:1ed23ab1345f 161 uint8_t reason; // used in decline internal
va009039 0:1ed23ab1345f 162
va009039 0:1ed23ab1345f 163 // client connection
va009039 0:1ed23ab1345f 164 void * connection;
va009039 0:1ed23ab1345f 165
va009039 0:1ed23ab1345f 166 // internal connection
va009039 0:1ed23ab1345f 167 btstack_packet_handler_t packet_handler;
va009039 0:1ed23ab1345f 168
va009039 0:1ed23ab1345f 169 } l2cap_channel_t;
va009039 0:1ed23ab1345f 170
va009039 0:1ed23ab1345f 171 // info regarding potential connections
va009039 0:1ed23ab1345f 172 typedef struct {
va009039 0:1ed23ab1345f 173 // linked list - assert: first field
va009039 0:1ed23ab1345f 174 linked_item_t item;
va009039 0:1ed23ab1345f 175
va009039 0:1ed23ab1345f 176 // service id
va009039 0:1ed23ab1345f 177 uint16_t psm;
va009039 0:1ed23ab1345f 178
va009039 0:1ed23ab1345f 179 // incoming MTU
va009039 0:1ed23ab1345f 180 uint16_t mtu;
va009039 0:1ed23ab1345f 181
va009039 0:1ed23ab1345f 182 // client connection
va009039 0:1ed23ab1345f 183 void *connection;
va009039 0:1ed23ab1345f 184
va009039 0:1ed23ab1345f 185 // internal connection
va009039 0:1ed23ab1345f 186 btstack_packet_handler_t packet_handler;
va009039 0:1ed23ab1345f 187
va009039 0:1ed23ab1345f 188 } l2cap_service_t;
va009039 0:1ed23ab1345f 189
va009039 0:1ed23ab1345f 190
va009039 0:1ed23ab1345f 191 typedef struct l2cap_signaling_response {
va009039 0:1ed23ab1345f 192 hci_con_handle_t handle;
va009039 0:1ed23ab1345f 193 uint8_t sig_id;
va009039 0:1ed23ab1345f 194 uint8_t code;
va009039 0:1ed23ab1345f 195 uint16_t data; // infoType for INFORMATION REQUEST, result for CONNECTION request
va009039 0:1ed23ab1345f 196 } l2cap_signaling_response_t;
va009039 0:1ed23ab1345f 197
va009039 0:1ed23ab1345f 198
va009039 0:1ed23ab1345f 199 #if defined __cplusplus
va009039 0:1ed23ab1345f 200 }
va009039 0:1ed23ab1345f 201 #endif