BluetoothEvents.c 7.75 KB
 Dean Camera committed Jul 08, 2010 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 /* LUFA Library Copyright (C) Dean Camera, 2010. dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this software, including all implied warranties of merchantability and fitness. In no event shall the author be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of this software. */ /** \file * * Bluetooth stack event callback handlers. This module handles the callback events that are * thrown from the Bluetooth stack in response to changes in the connection and channel * states. */ #include "BluetoothEvents.h"  Dean Camera committed Jul 08, 2010 40 41 /** Pointer to the opened Bluetooth ACL channel structure for RFCOMM, used to send and receive data between the * local and remote device once a RFCOMM channel has been opened.  Dean Camera committed Jul 08, 2010 42  */  Dean Camera committed Jul 11, 2010 43 Bluetooth_Channel_t* SerialChannel_ACL = NULL;  Dean Camera committed Jul 08, 2010 44   Dean Camera committed Jul 08, 2010 45 46 47 /** Pointer to the opened RFCOMM logical channel between local and remote device, once a RFCOMM ACL channel has been * negotiated and a logical RFCOMM channel requested. */  Dean Camera committed Jul 11, 2010 48 RFCOMM_Channel_t* SerialChannel_RFCOMM = NULL;  Dean Camera committed Jul 08, 2010 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117  /** Bluetooth stack callback event for when the Bluetooth stack has fully initialized using the attached * Bluetooth dongle. */ void Bluetooth_StackInitialized(void) { printf_P(PSTR("Stack initialized with local address %02X:%02X:%02X:%02X:%02X:%02X.\r\n"), Bluetooth_State.LocalBDADDR[5], Bluetooth_State.LocalBDADDR[4], Bluetooth_State.LocalBDADDR[3], Bluetooth_State.LocalBDADDR[2], Bluetooth_State.LocalBDADDR[1], Bluetooth_State.LocalBDADDR[0]); /* Reinitialize the services placed on top of the Bluetooth stack ready for new connections */ RFCOMM_Initialize(); } /** Bluetooth stack callback event for a Bluetooth connection request. When this callback fires, the * user application must indicate if the connection is to be allowed or rejected. * * \param[in] RemoteAddress Bluetooth address of the remote device attempting the connection * * \return Boolean true to accept the connection, false to reject it */ bool Bluetooth_ConnectionRequest(const uint8_t* RemoteAddress) { printf_P(PSTR("Connection Request from Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"), RemoteAddress[5], RemoteAddress[4], RemoteAddress[3], RemoteAddress[2], RemoteAddress[1], RemoteAddress[0]); /* Always accept connections from remote devices */ return true; } /** Bluetooth stack callback event for a completed Bluetooth connection. When this callback is made, * the connection information can be accessed through the global \ref Bluetooth_Connection structure. */ void Bluetooth_ConnectionComplete(void) { printf_P(PSTR("Connection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"), Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4], Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2], Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0]); LEDs_SetAllLEDs(LEDMASK_USB_BUSY); } /** Bluetooth stack callback event for a completed Bluetooth disconnection. When this callback is made, * the connection information in the global \ref Bluetooth_Connection structure is invalidated with the * exception of the RemoteAddress element, which can be used to determine the address of the device that * was disconnected. */ void Bluetooth_DisconnectionComplete(void) { printf_P(PSTR("Disconnection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X.\r\n"), Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4], Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2], Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0]); LEDs_SetAllLEDs(LEDMASK_USB_READY); } /** Bluetooth stack callback event for a Bluetooth ACL Channel connection request. When is callback fires, * the user application must indicate if the channel connection should be rejected or not, based on the * protocol (PSM) value of the requested channel. * * \param[in] PSM Protocol PSM value for the requested channel * * \return Boolean true to accept the channel connection request, false to reject it */ bool Bluetooth_ChannelConnectionRequest(const uint16_t PSM) {  Dean Camera committed Jul 11, 2010 118 119  /* Only accept connections for channels that will be used for RFCOMM or SDP data */ return ((PSM == CHANNEL_PSM_RFCOMM) || (PSM == CHANNEL_PSM_SDP));  Dean Camera committed Jul 08, 2010 120 121 122 123 124 125 126 } /** Bluetooth stack callback event for when a Bluetooth ACL channel has been fully created and configured, * either at the request of the local device, or the remote device. * * \param[in] Channel Bluetooth ACL data channel information structure for the channel that can now be used */  Dean Camera committed Jul 11, 2010 127 void Bluetooth_ChannelOpened(Bluetooth_Channel_t* const ACLChannel)  Dean Camera committed Jul 08, 2010 128 129 { /* Save the RFCOMM channel for later use when we want to send RFCOMM data */  Dean Camera committed Jul 11, 2010 130 131  if (ACLChannel->PSM == CHANNEL_PSM_RFCOMM) SerialChannel_ACL = ACLChannel;  Dean Camera committed Jul 08, 2010 132 133 134 135 136 137 138 139 140 } /** Bluetooth stack callback event for a non-signal ACL packet reception. This callback fires once a connection * to a remote Bluetooth device has been made, and the remote device has sent a non-signalling ACL packet. * * \param[in] Data Pointer to a buffer where the received data is stored * \param[in] DataLen Length of the packet data, in bytes * \param[in] Channel Bluetooth ACL data channel information structure for the packet's destination channel */  Dean Camera committed Jul 11, 2010 141 void Bluetooth_PacketReceived(void* Data, uint16_t DataLen, Bluetooth_Channel_t* const ACLChannel)  Dean Camera committed Jul 08, 2010 142 143 { /* Run the correct packet handler based on the received packet's PSM, which indicates the service being carried */  Dean Camera committed Jul 11, 2010 144  switch (ACLChannel->PSM)  Dean Camera committed Jul 08, 2010 145 146 147  { case CHANNEL_PSM_SDP: /* Service Discovery Protocol packet */  Dean Camera committed Jul 11, 2010 148  SDP_ProcessPacket(Data, ACLChannel);  Dean Camera committed Jul 08, 2010 149 150 151  break; case CHANNEL_PSM_RFCOMM: /* RFCOMM (Serial Port) Protocol packet */  Dean Camera committed Jul 11, 2010 152  RFCOMM_ProcessPacket(Data, ACLChannel);  Dean Camera committed Jul 08, 2010 153 154 155  break; } }  156   Dean Camera committed Jul 11, 2010 157 void RFCOMM_ChannelOpened(RFCOMM_Channel_t* const RFCOMMChannel)  Dean Camera committed Jul 08, 2010 158 159 { /* Save the serial port RFCOMM logical channel for later use */  Dean Camera committed Jul 11, 2010 160  SerialChannel_RFCOMM = RFCOMMChannel;  Dean Camera committed Jul 08, 2010 161 162 }  163 164 /** RFCOMM layer callback for when a packet is received on an open RFCOMM channel. *  Dean Camera committed Jul 08, 2010 165 166 167  * \param[in] Channel RFCOMM channel that the data was directed to * \param[in] DataLen Length of the received data, in bytes * \param[in] Data Pointer to a buffer where the received data is stored  168  */  Dean Camera committed Jul 11, 2010 169 void RFCOMM_DataReceived(RFCOMM_Channel_t* const ACLChannel, uint16_t DataLen, const uint8_t* Data)  170 171 172 173 { /* Write the received bytes to the serial port */ for (uint8_t i = 0; i < DataLen; i++) putchar(Data[i]);  Dean Camera committed Jul 08, 2010 174 175  /* Echo the data back to the sending device */  Dean Camera committed Jul 11, 2010 176 177 178 179 180 181  RFCOMM_SendData(DataLen, Data, SerialChannel_RFCOMM, SerialChannel_ACL); } void RFCOMM_ChannelSignalsReceived(RFCOMM_Channel_t* const RFCOMMChannel) { // Currently do nothing in response to the remote device sending new terminal control signals  182 }