Header for a common kernel module to handle all BT Stack data structures. Its sources can wait...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28108 a95241bf-73f2-0310-859d-f6bbb57e9c96
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Oliver Ruiz Dorantes
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/*
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* Copyright 2008 Oliver Ruiz Dorantes, oliver.ruiz.dorantes_at_gmail.com
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* All rights reserved. Distributed under the terms of the MIT License.
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*/
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#ifndef _BCOREDATA_H
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#define _BCOREDATA_H
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#include <module.h>
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#include <util/DoublyLinkedList.h>
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#include <util/DoublyLinkedQueue.h>
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#include <net_buffer.h>
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/HCI/btHCI.h>
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#include <l2cap.h>
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#define BT_CORE_DATA_MODULE_NAME "generic/btCoreData/v1"
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struct L2capChannel;
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struct L2capFrame;
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struct L2capEndpoint;
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typedef enum _connection_status {
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HCI_CONN_CLOSED,
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HCI_CONN_OPEN,
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} connection_status;
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struct HciConnection : DoublyLinkedListLinkImpl<HciConnection> {
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hci_id Hid;
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net_buffer* currentRxPacket;
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ssize_t currentRxExpectedLength;
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bdaddr_t destination;
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uint16 handle;
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int type;
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uint16 mtu;
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connection_status status; /* ACL connection state */
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uint16 lastCid;
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DoublyLinkedList<L2capChannel> ChannelList;
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DoublyLinkedQueue<L2capFrame> ExpectedResponses;
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DoublyLinkedQueue<L2capFrame> OutGoingFrames;
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};
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typedef enum _channel_status {
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L2CAP_CHAN_CLOSED, /* channel closed */
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L2CAP_CHAN_W4_L2CAP_CON_RSP, /* wait for L2CAP resp. */
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L2CAP_CHAN_W4_L2CA_CON_RSP, /* wait for upper resp. */
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L2CAP_CHAN_CONFIG, /* L2CAP configuration */
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L2CAP_CHAN_OPEN, /* channel open */
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L2CAP_CHAN_W4_L2CAP_DISCON_RSP, /* wait for L2CAP discon. */
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L2CAP_CHAN_W4_L2CA_DISCON_RSP /* wait for upper discon. */
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} channel_status;
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struct L2capChannel : DoublyLinkedListLinkImpl<L2capChannel> {
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HciConnection* conn;
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uint16 scid;
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uint16 dcid;
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uint16 psm;
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uint8 ident;
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channel_status state;
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uint16 imtu; /* incoming channel MTU */
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l2cap_flow_t iflow; /* incoming flow control */
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uint16 omtu; /* outgoing channel MTU */
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l2cap_flow_t oflow; /* outgoing flow control */
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uint16 flush_timo; /* flush timeout */
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uint16 link_timo; /* link timeout */
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int cfgState;
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L2capEndpoint* endpoint;
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};
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typedef enum _frametype {
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L2CAP_C_FRAME, // signals
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L2CAP_G_FRAME, // CL packets
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L2CAP_B_FRAME, // CO packets
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L2CAP_I_FRAME,
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L2CAP_S_FRAME
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} frame_type;
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struct L2capFrame : DoublyLinkedListLinkImpl<L2capFrame> {
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HciConnection* conn;
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L2capChannel* channel;
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uint16 flags; /* command flags */
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#define L2CAP_CMD_PENDING (1 << 0) /* command is pending */
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uint8 code; /* L2CAP command opcode */
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uint8 ident; /* L2CAP command ident */
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frame_type type;
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net_buffer* buffer; // contains 1 l2cap / mutliple acls
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//TODO :struct callout timo; /* RTX/ERTX timeout */
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};
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struct bluetooth_core_data_module_info {
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module_info info;
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HciConnection* (*AddConnection)(uint16 handle, int type, bdaddr_t *dst, hci_id hid);
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/*status_t (*RemoveConnection)(bdaddr_t destination, hci_id hid);*/
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status_t (*RemoveConnection)(uint16 handle, hci_id hid);
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hci_id (*RouteConnection)(bdaddr_t* destination);
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void (*SetAclBuffer)(HciConnection* conn, net_buffer* nbuf);
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void (*SetAclExpectedSize)(HciConnection* conn, size_t size);
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void (*AclPutting)(HciConnection* conn, size_t size);
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bool (*AclComplete)(HciConnection* conn);
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bool (*AclOverFlowed)(HciConnection* conn);
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HciConnection* (*ConnectionByHandle)(uint16 handle, hci_id hid);
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HciConnection* (*ConnectionByDestination)(bdaddr_t* destination, hci_id hid);
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L2capChannel* (*AddChannel)(HciConnection* conn, uint16 psm);
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void (*RemoveChannel)(HciConnection* conn, uint16 scid);
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L2capChannel* (*ChannelBySourceID)(HciConnection* conn, uint16 sid);
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uint16 (*ChannelAllocateCid)(HciConnection* conn);
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uint16 (*ChannelAllocateIdent)(HciConnection* conn);
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L2capFrame* (*SignalByIdent)(HciConnection* conn, uint8 ident);
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status_t (*TimeoutSignal)(L2capFrame* frame, uint32 timeo);
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status_t (*UnTimeoutSignal)(L2capFrame* frame);
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L2capFrame* (*SpawnFrame)(HciConnection* conn, net_buffer* buffer, frame_type frame);
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L2capFrame* (*SpawnSignal)(HciConnection* conn, L2capChannel* channel, net_buffer* buffer, uint8 ident, uint8 code);
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status_t (*AcknowledgeSignal)(L2capFrame* frame);
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};
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inline bool ExistConnectionByDestination(bdaddr_t* destination, hci_id hid = -1);
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inline bool ExistConnectionByHandle(uint16 handle, hci_id hid);
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#endif // _BCOREDATA_H
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