BluetoothStack.c 3.85 KB
 Dean Camera committed Jun 05, 2009 1 2 /* LUFA Library  Dean Camera committed Dec 30, 2009 3  Copyright (C) Dean Camera, 2010.  Dean Camera committed Jun 05, 2009 4 5 6 7 8 9  dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ /*  Dean Camera committed Dec 30, 2009 10  Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)  Dean Camera committed Jun 05, 2009 11   Dean Camera committed Dec 28, 2009 12 13 14 15 16 17 18  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  Dean Camera committed Jun 05, 2009 19 20 21 22 23 24 25 26 27 28 29 30 31 32  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. */ #include "BluetoothStack.h"  Dean Camera committed Apr 05, 2010 33 34 35 /** Bluetooth device connection information structure. Once connected to a remote device, this structure tracks the * connection state of the individual L2CAP channels. */  Dean Camera committed Jun 05, 2009 36 37 Bluetooth_Connection_t Bluetooth_Connection = {IsConnected: false};  Dean Camera committed Apr 05, 2010 38 39 /** Bluetooth configuration structure. This structure configures the bluetooth stack's user alterable settings. */ Bluetooth_Device_t Bluetooth_DeviceConfiguration =  Dean Camera committed Jun 05, 2009 40  {  Dean Camera committed Apr 05, 2010 41  Class: (DEVICE_CLASS_SERVICE_CAPTURING | DEVICE_CLASS_MAJOR_COMPUTER | DEVICE_CLASS_MINOR_COMPUTER_PALM),  Dean Camera committed Jun 05, 2009 42  PINCode: "0000",  Dean Camera committed Apr 05, 2010 43  Name: "LUFA Bluetooth Demo"  Dean Camera committed Jun 05, 2009 44 45  };  Dean Camera committed Apr 12, 2010 46 47 48 49 50 51 52 /** Bluetooth stack initialization function. This function must be called once to initialize the Bluetooth stack, * ready for connection to remote devices. * * \note This function only begins the initialization process; the stack is initialized as the main Bluetooth stack * management task is repeatedly called. The initialization process ends when the \ref Bluetooth_HCIProcessingState * global enters the Bluetooth_ProcessEvents state. */  Dean Camera committed Apr 05, 2010 53 void Bluetooth_Stack_Init(void)  Dean Camera committed Mar 31, 2010 54 {  Dean Camera committed Apr 12, 2010 55  /* Reset the HCI state machine - this will eventually reset the adapter and stack when the Bluetooth stack task is called */  Dean Camera committed Mar 31, 2010 56 57 58  Bluetooth_HCIProcessingState = Bluetooth_Init; }  Dean Camera committed Apr 12, 2010 59 60 61 /** Bluetooth stack management task. This task must be repeatedly called to maintain the Bluetooth stack and any connection * to remote Bluetooth devices, including both the HCI control layer and the ACL channel layer. */  Dean Camera committed Apr 05, 2010 62 void Bluetooth_Stack_USBTask(void)  Dean Camera committed Jun 05, 2009 63 {  Dean Camera committed Apr 06, 2010 64 65  Bluetooth_HCITask(); Bluetooth_ACLTask();  Dean Camera committed Jun 05, 2009 66 67 }  Dean Camera committed Apr 12, 2010 68 69 /** Retrieves the channel information structure with the given local or remote channel number from the channel list. *  Dean Camera committed Apr 15, 2010 70 71 72  * \param[in] ChannelNumber Channel number to search for in the channel list * \param[in] SearchByRemoteChannel Indicated whether to search for a channel information structure by the given remote channel * or local channel number  Dean Camera committed Apr 12, 2010 73 74 75  * * \return Pointer to the matching channel information structure in the channel table if found, NULL otherwise */  Dean Camera committed Apr 10, 2010 76 Bluetooth_Channel_t* Bluetooth_GetChannelData(uint16_t ChannelNumber, bool SearchByRemoteChannel)  Dean Camera committed Jun 05, 2009 77 78 79 { for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++) {  Dean Camera committed Apr 06, 2010 80  Bluetooth_Channel_t* ChannelData = &Bluetooth_Connection.Channels[i];  Dean Camera committed Jun 05, 2009 81   Dean Camera committed Apr 12, 2010 82 83  /* Fetch the channel number that is to be matched against from the current channel information struct */ uint16_t SearchChannelNumber = (SearchByRemoteChannel) ? ChannelData->RemoteNumber : ChannelData->LocalNumber;  Dean Camera committed Jun 05, 2009 84   Dean Camera committed Apr 12, 2010 85  if (SearchChannelNumber == ChannelNumber)  Dean Camera committed Apr 06, 2010 86  return ChannelData;  Dean Camera committed Jun 05, 2009 87 88 89 90  } return NULL; }