Demos/Host/Incomplete/BluetoothHost/BluetoothEvents.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Bluetooth stack event callback handlers. This module handles the callback events that are
  34  *  thrown from the Bluetooth stack in response to changes in the connection and channel
  35  *  states.
  36  */
  37
  38 #include "BluetoothEvents.h"
  39
  40 /** Bluetooth RFCOMM channel structure - used to send and receive RFCOMM data between the local and remote
  41  *  device once a RFCOMM channel has been opened.
  42  */
  43 Bluetooth_Channel_t* RFCOMMChannel = NULL;
  44
  45
  46 /** Bluetooth stack callback event for when the Bluetooth stack has fully initialized using the attached
  47  *  Bluetooth dongle.
  48  */
  49 void Bluetooth_StackInitialized(void)
  50 {
  51         printf_P(PSTR("Stack initialized with local address %02X:%02X:%02X:%02X:%02X:%02X.\r\n"),
  52                  Bluetooth_State.LocalBDADDR[5], Bluetooth_State.LocalBDADDR[4], Bluetooth_State.LocalBDADDR[3],
  53                  Bluetooth_State.LocalBDADDR[2], Bluetooth_State.LocalBDADDR[1], Bluetooth_State.LocalBDADDR[0]);
  54
  55         /* Reinitialize the services placed on top of the Bluetooth stack ready for new connections */
  56         RFCOMM_Initialize();
  57 }
  58
  59 /** Bluetooth stack callback event for a Bluetooth connection request. When this callback fires, the
  60  *  user application must indicate if the connection is to be allowed or rejected.
  61  *
  62  *  \param[in] RemoteAddress  Bluetooth address of the remote device attempting the connection
  63  *
  64  *  \return Boolean true to accept the connection, false to reject it
  65  */
  66 bool Bluetooth_ConnectionRequest(const uint8_t* RemoteAddress)
  67 {
  68         printf_P(PSTR("Connection Request from Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"),
  69                  RemoteAddress[5], RemoteAddress[4], RemoteAddress[3], RemoteAddress[2],
  70                  RemoteAddress[1], RemoteAddress[0]);
  71
  72         /* Always accept connections from remote devices */
  73         return true;
  74 }
  75
  76 /** Bluetooth stack callback event for a completed Bluetooth connection. When this callback is made,
  77  *  the connection information can be accessed through the global \ref Bluetooth_Connection structure.
  78  */
  79 void Bluetooth_ConnectionComplete(void)
  80 {
  81         printf_P(PSTR("Connection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"),
  82                  Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4],
  83                  Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2],
  84                  Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0]);
  85
  86         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
  87 }
  88
  89 /** Bluetooth stack callback event for a completed Bluetooth disconnection. When this callback is made,
  90  *  the connection information in the global \ref Bluetooth_Connection structure is invalidated with the
  91  *  exception of the RemoteAddress element, which can be used to determine the address of the device that
  92  *  was disconnected.
  93  */
  94 void Bluetooth_DisconnectionComplete(void)
  95 {
  96         printf_P(PSTR("Disconnection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"),
  97                  Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4],
  98                  Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2],
  99                  Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0]);
 100
 101         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 102 }
 103
 104 /** Bluetooth stack callback event for a Bluetooth ACL Channel connection request. When is callback fires,
 105  *  the user application must indicate if the channel connection should be rejected or not, based on the
 106  *  protocol (PSM) value of the requested channel.
 107  *
 108  *  \param[in] PSM  Protocol PSM value for the requested channel
 109  *
 110  *  \return Boolean true to accept the channel connection request, false to reject it
 111  */
 112 bool Bluetooth_ChannelConnectionRequest(const uint16_t PSM)
 113 {
 114         /* Always accept channel connection requests regardless of PSM */
 115         return true;
 116 }
 117
 118 /** Bluetooth stack callback event for when a Bluetooth ACL channel has been fully created and configured,
 119  *  either at the request of the local device, or the remote device.
 120  *
 121  *  \param[in] Channel  Bluetooth ACL data channel information structure for the channel that can now be used
 122  */
 123 void Bluetooth_ChannelOpened(Bluetooth_Channel_t* const Channel)
 124 {
 125         /* Save the RFCOMM channel for later use when we want to send RFCOMM data */
 126         if (Channel->PSM == CHANNEL_PSM_RFCOMM)
 127           RFCOMMChannel = Channel;
 128 }
 129
 130 /** Bluetooth stack callback event for a non-signal ACL packet reception. This callback fires once a connection
 131  *  to a remote Bluetooth device has been made, and the remote device has sent a non-signalling ACL packet.
 132  *
 133  *  \param[in] Data     Pointer to a buffer where the received data is stored
 134  *  \param[in] DataLen  Length of the packet data, in bytes
 135  *  \param[in] Channel  Bluetooth ACL data channel information structure for the packet's destination channel
 136  */
 137 void Bluetooth_PacketReceived(void* Data, uint16_t DataLen, Bluetooth_Channel_t* const Channel)
 138 {
 139         /* Run the correct packet handler based on the received packet's PSM, which indicates the service being carried */
 140         switch (Channel->PSM)
 141         {
 142                 case CHANNEL_PSM_SDP:
 143                         /* Service Discovery Protocol packet */
 144                         SDP_ProcessPacket(Data, Channel);
 145                         break;
 146                 case CHANNEL_PSM_RFCOMM:
 147                         /* RFCOMM (Serial Port) Protocol packet */
 148                         RFCOMM_ProcessPacket(Data, Channel);
 149                         break;
 150                 default:
 151                         /* Unknown Protocol packet */
 152                         printf_P(PSTR("Unknown Packet Received (Channel 0x%04X, PSM: 0x%02X, Len: 0x%04X):\r\n"),
 153                                       Channel->LocalNumber, Channel->PSM, DataLen);
 154                         break;
 155         }
 156 }